Move core/fxcrt/include to core/fxcrt

BUG=pdfium:611

Review-Url: https://codereview.chromium.org/2382723003

17 files changed, 0 insertions, 3699 deletions

diff --git a/core/fxcrt/include/cfx_count_ref.h b/core/fxcrt/include/cfx_count_ref.h
deleted file mode 100644
index a879967b28..0000000000
--- a/core/fxcrt/include/cfx_count_ref.h
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_CFX_COUNT_REF_H_
-#define CORE_FXCRT_INCLUDE_CFX_COUNT_REF_H_
-
-#include "core/fxcrt/include/cfx_retain_ptr.h"
-#include "core/fxcrt/include/fx_system.h"
-
-// A shared object with Copy on Write semantics that makes it appear as
-// if each one were independent.
-template <class ObjClass>
-class CFX_CountRef {
- public:
-  CFX_CountRef() {}
-  CFX_CountRef(const CFX_CountRef& other) : m_pObject(other.m_pObject) {}
-  ~CFX_CountRef() {}
-
-  template <typename... Args>
-  ObjClass* Emplace(Args... params) {
-    m_pObject.Reset(new CountedObj(params...));
-    return m_pObject.Get();
-  }
-
-  CFX_CountRef& operator=(const CFX_CountRef& that) {
-    if (*this != that)
-      m_pObject = that.m_pObject;
-    return *this;
-  }
-
-  void SetNull() { m_pObject.Reset(); }
-  const ObjClass* GetObject() const { return m_pObject.Get(); }
-
-  template <typename... Args>
-  ObjClass* GetPrivateCopy(Args... params) {
-    if (!m_pObject)
-      return Emplace(params...);
-    if (!m_pObject->HasOneRef())
-      m_pObject.Reset(new CountedObj(*m_pObject));
-    return m_pObject.Get();
-  }
-
-  bool operator==(const CFX_CountRef& that) const {
-    return m_pObject == that.m_pObject;
-  }
-  bool operator!=(const CFX_CountRef& that) const { return !(*this == that); }
-  explicit operator bool() const { return !!m_pObject; }
-
- private:
-  class CountedObj : public ObjClass {
-   public:
-    template <typename... Args>
-    CountedObj(Args... params) : ObjClass(params...), m_RefCount(0) {}
-
-    CountedObj(const CountedObj& src) : ObjClass(src), m_RefCount(0) {}
-    ~CountedObj() { m_RefCount = 0; }
-
-    bool HasOneRef() const { return m_RefCount == 1; }
-    void Retain() { m_RefCount++; }
-    void Release() {
-      ASSERT(m_RefCount);
-      if (--m_RefCount == 0)
-        delete this;
-    }
-
-   private:
-    // To ensure ref counts do not overflow, consider the worst possible case:
-    // the entire address space contains nothing but pointers to this object.
-    // Since the count increments with each new pointer, the largest value is
-    // the number of pointers that can fit into the address space. The size of
-    // the address space itself is a good upper bound on it.
-    intptr_t m_RefCount;
-  };
-
-  CFX_RetainPtr<CountedObj> m_pObject;
-};
-
-#endif  // CORE_FXCRT_INCLUDE_CFX_COUNT_REF_H_
diff --git a/core/fxcrt/include/cfx_observable.h b/core/fxcrt/include/cfx_observable.h
deleted file mode 100644
index a5053f3952..0000000000
--- a/core/fxcrt/include/cfx_observable.h
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CORE_FXCRT_INCLUDE_CFX_OBSERVABLE_H_
-#define CORE_FXCRT_INCLUDE_CFX_OBSERVABLE_H_
-
-#include <set>
-
-#include "core/fxcrt/include/fx_system.h"
-#include "third_party/base/stl_util.h"
-
-template <class T>
-class CFX_Observable {
- public:
-  class ObservedPtr {
-   public:
-    ObservedPtr() : m_pObservedPtr(nullptr) {}
-    explicit ObservedPtr(T* pObservedPtr) : m_pObservedPtr(pObservedPtr) {
-      if (m_pObservedPtr)
-        m_pObservedPtr->AddObservedPtr(this);
-    }
-    ObservedPtr(const ObservedPtr& that) = delete;
-    ~ObservedPtr() {
-      if (m_pObservedPtr)
-        m_pObservedPtr->RemoveObservedPtr(this);
-    }
-    void Reset(T* pObservedPtr = nullptr) {
-      if (m_pObservedPtr)
-        m_pObservedPtr->RemoveObservedPtr(this);
-      m_pObservedPtr = pObservedPtr;
-      if (m_pObservedPtr)
-        m_pObservedPtr->AddObservedPtr(this);
-    }
-    void OnDestroy() {
-      ASSERT(m_pObservedPtr);
-      m_pObservedPtr = nullptr;
-    }
-    ObservedPtr& operator=(const ObservedPtr& that) = delete;
-    bool operator==(const ObservedPtr& that) const {
-      return m_pObservedPtr == that.m_pObservedPtr;
-    }
-    bool operator!=(const ObservedPtr& that) const { return !(*this == that); }
-    explicit operator bool() const { return !!m_pObservedPtr; }
-    T* Get() const { return m_pObservedPtr; }
-    T& operator*() const { return *m_pObservedPtr; }
-    T* operator->() const { return m_pObservedPtr; }
-
-   private:
-    T* m_pObservedPtr;
-  };
-
-  CFX_Observable() {}
-  CFX_Observable(const CFX_Observable& that) = delete;
-  ~CFX_Observable() { NotifyObservedPtrs(); }
-  void AddObservedPtr(ObservedPtr* pObservedPtr) {
-    ASSERT(!pdfium::ContainsKey(m_ObservedPtrs, pObservedPtr));
-    m_ObservedPtrs.insert(pObservedPtr);
-  }
-  void RemoveObservedPtr(ObservedPtr* pObservedPtr) {
-    ASSERT(pdfium::ContainsKey(m_ObservedPtrs, pObservedPtr));
-    m_ObservedPtrs.erase(pObservedPtr);
-  }
-  void NotifyObservedPtrs() {
-    for (auto* pObservedPtr : m_ObservedPtrs)
-      pObservedPtr->OnDestroy();
-    m_ObservedPtrs.clear();
-  }
-  CFX_Observable& operator=(const CFX_Observable& that) = delete;
-
- protected:
-  size_t ActiveObservedPtrsForTesting() const { return m_ObservedPtrs.size(); }
-
- private:
-  std::set<ObservedPtr*> m_ObservedPtrs;
-};
-
-#endif  // CORE_FXCRT_INCLUDE_CFX_OBSERVABLE_H_
diff --git a/core/fxcrt/include/cfx_retain_ptr.h b/core/fxcrt/include/cfx_retain_ptr.h
deleted file mode 100644
index e40feb6b31..0000000000
--- a/core/fxcrt/include/cfx_retain_ptr.h
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CORE_FXCRT_INCLUDE_CFX_RETAIN_PTR_H_
-#define CORE_FXCRT_INCLUDE_CFX_RETAIN_PTR_H_
-
-#include <memory>
-
-#include "core/fxcrt/include/fx_memory.h"
-
-template <class T>
-class CFX_RetainPtr {
- public:
-  explicit CFX_RetainPtr(T* pObj) : m_pObj(pObj) {
-    if (m_pObj)
-      m_pObj->Retain();
-  }
-
-  CFX_RetainPtr() : CFX_RetainPtr(nullptr) {}
-  CFX_RetainPtr(const CFX_RetainPtr& that) : CFX_RetainPtr(that.Get()) {}
-  CFX_RetainPtr(CFX_RetainPtr&& that) { Swap(that); }
-
-  template <class U>
-  CFX_RetainPtr(const CFX_RetainPtr<U>& that)
-      : CFX_RetainPtr(that.Get()) {}
-
-  void Reset(T* obj = nullptr) {
-    if (obj)
-      obj->Retain();
-    m_pObj.reset(obj);
-  }
-
-  T* Get() const { return m_pObj.get(); }
-  void Swap(CFX_RetainPtr& that) { m_pObj.swap(that.m_pObj); }
-
-  CFX_RetainPtr& operator=(const CFX_RetainPtr& that) {
-    if (*this != that)
-      Reset(that.Get());
-    return *this;
-  }
-
-  bool operator==(const CFX_RetainPtr& that) const {
-    return Get() == that.Get();
-  }
-
-  bool operator!=(const CFX_RetainPtr& that) const { return !(*this == that); }
-
-  explicit operator bool() const { return !!m_pObj; }
-  T& operator*() const { return *m_pObj.get(); }
-  T* operator->() const { return m_pObj.get(); }
-
- private:
-  std::unique_ptr<T, ReleaseDeleter<T>> m_pObj;
-};
-
-#endif  // CORE_FXCRT_INCLUDE_CFX_RETAIN_PTR_H_
diff --git a/core/fxcrt/include/cfx_string_pool_template.h b/core/fxcrt/include/cfx_string_pool_template.h
deleted file mode 100644
index a59d13a61d..0000000000
--- a/core/fxcrt/include/cfx_string_pool_template.h
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_CFX_STRING_POOL_TEMPLATE_H_
-#define CORE_FXCRT_INCLUDE_CFX_STRING_POOL_TEMPLATE_H_
-
-#include <unordered_set>
-
-#include "core/fxcrt/include/fx_string.h"
-
-template <typename StringType>
-class CFX_StringPoolTemplate {
- public:
-  StringType Intern(const StringType& str) { return *m_Pool.insert(str).first; }
-  void Clear() { m_Pool.clear(); }
-
- private:
-  std::unordered_set<StringType> m_Pool;
-};
-
-using CFX_ByteStringPool = CFX_StringPoolTemplate<CFX_ByteString>;
-using CFX_WideStringPool = CFX_StringPoolTemplate<CFX_WideString>;
-
-extern template class CFX_StringPoolTemplate<CFX_ByteString>;
-extern template class CFX_StringPoolTemplate<CFX_WideString>;
-
-#endif  // CORE_FXCRT_INCLUDE_CFX_STRING_POOL_TEMPLATE_H_
diff --git a/core/fxcrt/include/cfx_weak_ptr.h b/core/fxcrt/include/cfx_weak_ptr.h
deleted file mode 100644
index 64218cd679..0000000000
--- a/core/fxcrt/include/cfx_weak_ptr.h
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_CFX_WEAK_PTR_H_
-#define CORE_FXCRT_INCLUDE_CFX_WEAK_PTR_H_
-
-#include <memory>
-
-#include "core/fxcrt/include/cfx_retain_ptr.h"
-#include "core/fxcrt/include/fx_system.h"
-
-template <class T, class D = std::default_delete<T>>
-class CFX_WeakPtr {
- public:
-  CFX_WeakPtr() {}
-  CFX_WeakPtr(const CFX_WeakPtr& that) : m_pHandle(that.m_pHandle) {}
-  CFX_WeakPtr(CFX_WeakPtr&& that) { Swap(that); }
-  CFX_WeakPtr(std::unique_ptr<T, D> pObj)
-      : m_pHandle(new Handle(std::move(pObj))) {}
-
-  explicit operator bool() const { return m_pHandle && !!m_pHandle->Get(); }
-  bool HasOneRef() const { return m_pHandle && m_pHandle->HasOneRef(); }
-  T* operator->() { return m_pHandle->Get(); }
-  const T* operator->() const { return m_pHandle->Get(); }
-  CFX_WeakPtr& operator=(const CFX_WeakPtr& that) {
-    m_pHandle = that.m_pHandle;
-    return *this;
-  }
-  bool operator==(const CFX_WeakPtr& that) const {
-    return m_pHandle == that.m_pHandle;
-  }
-  bool operator!=(const CFX_WeakPtr& that) const { return !(*this == that); }
-
-  T* Get() const { return m_pHandle ? m_pHandle->Get() : nullptr; }
-  void Clear() {
-    if (m_pHandle) {
-      m_pHandle->Clear();
-      m_pHandle.Reset();
-    }
-  }
-  void Reset() { m_pHandle.Reset(); }
-  void Reset(std::unique_ptr<T, D> pObj) {
-    m_pHandle.Reset(new Handle(std::move(pObj)));
-  }
-  void Swap(CFX_WeakPtr& that) { m_pHandle.Swap(that.m_pHandle); }
-
- private:
-  class Handle {
-   public:
-    explicit Handle(std::unique_ptr<T, D> ptr)
-        : m_nCount(0), m_pObj(std::move(ptr)) {}
-    void Reset(std::unique_ptr<T, D> ptr) { m_pObj = std::move(ptr); }
-    void Clear() {     // Now you're all weak ptrs ...
-      m_pObj.reset();  // unique_ptr nulls first before invoking delete.
-    }
-    T* Get() const { return m_pObj.get(); }
-    T* Retain() {
-      ++m_nCount;
-      return m_pObj.get();
-    }
-    void Release() {
-      if (--m_nCount == 0)
-        delete this;
-    }
-    bool HasOneRef() const { return m_nCount == 1; }
-
-   private:
-    ~Handle() {}
-
-    intptr_t m_nCount;
-    std::unique_ptr<T, D> m_pObj;
-  };
-
-  CFX_RetainPtr<Handle> m_pHandle;
-};
-
-#endif  // CORE_FXCRT_INCLUDE_CFX_WEAK_PTR_H_
diff --git a/core/fxcrt/include/fx_arabic.h b/core/fxcrt/include/fx_arabic.h
deleted file mode 100644
index 2617d1897f..0000000000
--- a/core/fxcrt/include/fx_arabic.h
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_ARABIC_H_
-#define CORE_FXCRT_INCLUDE_FX_ARABIC_H_
-
-#include "core/fxcrt/include/fx_arb.h"
-
-#define FX_BIDIMAXLEVEL 61
-#define FX_BidiDirection(a) (FX_IsOdd(a) ? FX_BIDICLASS_R : FX_BIDICLASS_L)
-#define FX_BidiGetDeferredType(a) (((a) >> 4) & 0x0F)
-#define FX_BidiGetResolvedType(a) ((a)&0x0F)
-
-namespace pdfium {
-namespace arabic {
-
-bool IsArabicChar(FX_WCHAR wch);
-bool IsArabicFormChar(FX_WCHAR wch);
-FX_WCHAR GetFormChar(FX_WCHAR wch, FX_WCHAR prev = 0, FX_WCHAR next = 0);
-FX_WCHAR GetFormChar(const CFX_Char* cur,
-                     const CFX_Char* prev,
-                     const CFX_Char* next);
-
-}  // namespace arabic
-}  // namespace pdfium
-
-void FX_BidiReverseString(CFX_WideString& wsText,
-                          int32_t iStart,
-                          int32_t iCount);
-void FX_BidiSetDeferredRun(CFX_Int32Array& values,
-                           int32_t iStart,
-                           int32_t iCount,
-                           int32_t iValue);
-void FX_BidiClassify(const CFX_WideString& wsText,
-                     CFX_Int32Array& classes,
-                     FX_BOOL bWS = FALSE);
-int32_t FX_BidiResolveExplicit(int32_t iBaseLevel,
-                               int32_t iDirection,
-                               CFX_Int32Array& classes,
-                               CFX_Int32Array& levels,
-                               int32_t iStart,
-                               int32_t iCount,
-                               int32_t iNest = 0);
-
-enum FX_BIDIWEAKSTATE {
-  FX_BIDIWEAKSTATE_xa = 0,
-  FX_BIDIWEAKSTATE_xr,
-  FX_BIDIWEAKSTATE_xl,
-  FX_BIDIWEAKSTATE_ao,
-  FX_BIDIWEAKSTATE_ro,
-  FX_BIDIWEAKSTATE_lo,
-  FX_BIDIWEAKSTATE_rt,
-  FX_BIDIWEAKSTATE_lt,
-  FX_BIDIWEAKSTATE_cn,
-  FX_BIDIWEAKSTATE_ra,
-  FX_BIDIWEAKSTATE_re,
-  FX_BIDIWEAKSTATE_la,
-  FX_BIDIWEAKSTATE_le,
-  FX_BIDIWEAKSTATE_ac,
-  FX_BIDIWEAKSTATE_rc,
-  FX_BIDIWEAKSTATE_rs,
-  FX_BIDIWEAKSTATE_lc,
-  FX_BIDIWEAKSTATE_ls,
-  FX_BIDIWEAKSTATE_ret,
-  FX_BIDIWEAKSTATE_let,
-};
-#define FX_BWSxa FX_BIDIWEAKSTATE_xa
-#define FX_BWSxr FX_BIDIWEAKSTATE_xr
-#define FX_BWSxl FX_BIDIWEAKSTATE_xl
-#define FX_BWSao FX_BIDIWEAKSTATE_ao
-#define FX_BWSro FX_BIDIWEAKSTATE_ro
-#define FX_BWSlo FX_BIDIWEAKSTATE_lo
-#define FX_BWSrt FX_BIDIWEAKSTATE_rt
-#define FX_BWSlt FX_BIDIWEAKSTATE_lt
-#define FX_BWScn FX_BIDIWEAKSTATE_cn
-#define FX_BWSra FX_BIDIWEAKSTATE_ra
-#define FX_BWSre FX_BIDIWEAKSTATE_re
-#define FX_BWSla FX_BIDIWEAKSTATE_la
-#define FX_BWSle FX_BIDIWEAKSTATE_le
-#define FX_BWSac FX_BIDIWEAKSTATE_ac
-#define FX_BWSrc FX_BIDIWEAKSTATE_rc
-#define FX_BWSrs FX_BIDIWEAKSTATE_rs
-#define FX_BWSlc FX_BIDIWEAKSTATE_lc
-#define FX_BWSls FX_BIDIWEAKSTATE_ls
-#define FX_BWSret FX_BIDIWEAKSTATE_ret
-#define FX_BWSlet FX_BIDIWEAKSTATE_let
-
-enum FX_BIDIWEAKACTION {
-  FX_BIDIWEAKACTION_IX = 0x100,
-  FX_BIDIWEAKACTION_XX = 0x0F,
-  FX_BIDIWEAKACTION_xxx = (0x0F << 4) + 0x0F,
-  FX_BIDIWEAKACTION_xIx = 0x100 + FX_BIDIWEAKACTION_xxx,
-  FX_BIDIWEAKACTION_xxN = (0x0F << 4) + FX_BIDICLASS_ON,
-  FX_BIDIWEAKACTION_xxE = (0x0F << 4) + FX_BIDICLASS_EN,
-  FX_BIDIWEAKACTION_xxA = (0x0F << 4) + FX_BIDICLASS_AN,
-  FX_BIDIWEAKACTION_xxR = (0x0F << 4) + FX_BIDICLASS_R,
-  FX_BIDIWEAKACTION_xxL = (0x0F << 4) + FX_BIDICLASS_L,
-  FX_BIDIWEAKACTION_Nxx = (FX_BIDICLASS_ON << 4) + 0x0F,
-  FX_BIDIWEAKACTION_Axx = (FX_BIDICLASS_AN << 4) + 0x0F,
-  FX_BIDIWEAKACTION_ExE = (FX_BIDICLASS_EN << 4) + FX_BIDICLASS_EN,
-  FX_BIDIWEAKACTION_NIx = (FX_BIDICLASS_ON << 4) + 0x0F + 0x100,
-  FX_BIDIWEAKACTION_NxN = (FX_BIDICLASS_ON << 4) + FX_BIDICLASS_ON,
-  FX_BIDIWEAKACTION_NxR = (FX_BIDICLASS_ON << 4) + FX_BIDICLASS_R,
-  FX_BIDIWEAKACTION_NxE = (FX_BIDICLASS_ON << 4) + FX_BIDICLASS_EN,
-  FX_BIDIWEAKACTION_AxA = (FX_BIDICLASS_AN << 4) + FX_BIDICLASS_AN,
-  FX_BIDIWEAKACTION_NxL = (FX_BIDICLASS_ON << 4) + FX_BIDICLASS_L,
-  FX_BIDIWEAKACTION_LxL = (FX_BIDICLASS_L << 4) + FX_BIDICLASS_L,
-  FX_BIDIWEAKACTION_xIL = (0x0F << 4) + FX_BIDICLASS_L + 0x100,
-  FX_BIDIWEAKACTION_AxR = (FX_BIDICLASS_AN << 4) + FX_BIDICLASS_R,
-  FX_BIDIWEAKACTION_Lxx = (FX_BIDICLASS_L << 4) + 0x0F,
-};
-#define FX_BWAIX FX_BIDIWEAKACTION_IX
-#define FX_BWAXX FX_BIDIWEAKACTION_XX
-#define FX_BWAxxx FX_BIDIWEAKACTION_xxx
-#define FX_BWAxIx FX_BIDIWEAKACTION_xIx
-#define FX_BWAxxN FX_BIDIWEAKACTION_xxN
-#define FX_BWAxxE FX_BIDIWEAKACTION_xxE
-#define FX_BWAxxA FX_BIDIWEAKACTION_xxA
-#define FX_BWAxxR FX_BIDIWEAKACTION_xxR
-#define FX_BWAxxL FX_BIDIWEAKACTION_xxL
-#define FX_BWANxx FX_BIDIWEAKACTION_Nxx
-#define FX_BWAAxx FX_BIDIWEAKACTION_Axx
-#define FX_BWAExE FX_BIDIWEAKACTION_ExE
-#define FX_BWANIx FX_BIDIWEAKACTION_NIx
-#define FX_BWANxN FX_BIDIWEAKACTION_NxN
-#define FX_BWANxR FX_BIDIWEAKACTION_NxR
-#define FX_BWANxE FX_BIDIWEAKACTION_NxE
-#define FX_BWAAxA FX_BIDIWEAKACTION_AxA
-#define FX_BWANxL FX_BIDIWEAKACTION_NxL
-#define FX_BWALxL FX_BIDIWEAKACTION_LxL
-#define FX_BWAxIL FX_BIDIWEAKACTION_xIL
-#define FX_BWAAxR FX_BIDIWEAKACTION_AxR
-#define FX_BWALxx FX_BIDIWEAKACTION_Lxx
-
-void FX_BidiResolveWeak(int32_t iBaseLevel,
-                        CFX_Int32Array& classes,
-                        CFX_Int32Array& levels);
-enum FX_BIDINEUTRALSTATE {
-  FX_BIDINEUTRALSTATE_r = 0,
-  FX_BIDINEUTRALSTATE_l,
-  FX_BIDINEUTRALSTATE_rn,
-  FX_BIDINEUTRALSTATE_ln,
-  FX_BIDINEUTRALSTATE_a,
-  FX_BIDINEUTRALSTATE_na,
-};
-#define FX_BNSr FX_BIDINEUTRALSTATE_r
-#define FX_BNSl FX_BIDINEUTRALSTATE_l
-#define FX_BNSrn FX_BIDINEUTRALSTATE_rn
-#define FX_BNSln FX_BIDINEUTRALSTATE_ln
-#define FX_BNSa FX_BIDINEUTRALSTATE_a
-#define FX_BNSna FX_BIDINEUTRALSTATE_na
-enum FX_BIDINEUTRALACTION {
-  FX_BIDINEUTRALACTION_nL = FX_BIDICLASS_L,
-  FX_BIDINEUTRALACTION_En = (FX_BIDICLASS_AN << 4),
-  FX_BIDINEUTRALACTION_Rn = (FX_BIDICLASS_R << 4),
-  FX_BIDINEUTRALACTION_Ln = (FX_BIDICLASS_L << 4),
-  FX_BIDINEUTRALACTION_In = FX_BIDIWEAKACTION_IX,
-  FX_BIDINEUTRALACTION_LnL = (FX_BIDICLASS_L << 4) + FX_BIDICLASS_L,
-};
-#define FX_BNAnL FX_BIDINEUTRALACTION_nL
-#define FX_BNAEn FX_BIDINEUTRALACTION_En
-#define FX_BNARn FX_BIDINEUTRALACTION_Rn
-#define FX_BNALn FX_BIDINEUTRALACTION_Ln
-#define FX_BNAIn FX_BIDINEUTRALACTION_In
-#define FX_BNALnL FX_BIDINEUTRALACTION_LnL
-int32_t FX_BidiGetDeferredNeutrals(int32_t iAction, int32_t iLevel);
-int32_t FX_BidiGetResolvedNeutrals(int32_t iAction);
-void FX_BidiResolveNeutrals(int32_t iBaseLevel,
-                            CFX_Int32Array& classes,
-                            const CFX_Int32Array& levels);
-void FX_BidiResolveImplicit(const CFX_Int32Array& classes,
-                            CFX_Int32Array& levels);
-void FX_BidiResolveWhitespace(int32_t iBaseLevel,
-                              const CFX_Int32Array& classes,
-                              CFX_Int32Array& levels);
-int32_t FX_BidiReorderLevel(int32_t iBaseLevel,
-                            CFX_WideString& wsText,
-                            const CFX_Int32Array& levels,
-                            int32_t iStart,
-                            FX_BOOL bReverse = FALSE);
-void FX_BidiReorder(int32_t iBaseLevel,
-                    CFX_WideString& wsText,
-                    const CFX_Int32Array& levels);
-
-#endif  // CORE_FXCRT_INCLUDE_FX_ARABIC_H_
diff --git a/core/fxcrt/include/fx_arb.h b/core/fxcrt/include/fx_arb.h
deleted file mode 100644
index 6928519a80..0000000000
--- a/core/fxcrt/include/fx_arb.h
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_ARB_H_
-#define CORE_FXCRT_INCLUDE_FX_ARB_H_
-
-#include "core/fxcrt/include/fx_system.h"
-#include "core/fxcrt/include/fx_ucd.h"
-
-struct FX_ARBFORMTABLE {
-  uint16_t wIsolated;
-  uint16_t wFinal;
-  uint16_t wInitial;
-  uint16_t wMedial;
-};
-
-struct FX_ARAALEF {
-  uint16_t wAlef;
-  uint16_t wIsolated;
-};
-
-struct FX_ARASHADDA {
-  uint16_t wShadda;
-  uint16_t wIsolated;
-};
-
-const FX_ARBFORMTABLE* FX_GetArabicFormTable(FX_WCHAR unicode);
-FX_WCHAR FX_GetArabicFromAlefTable(FX_WCHAR alef);
-FX_WCHAR FX_GetArabicFromShaddaTable(FX_WCHAR shadda);
-
-enum FX_ARBPOSITION {
-  FX_ARBPOSITION_Isolated = 0,
-  FX_ARBPOSITION_Final,
-  FX_ARBPOSITION_Initial,
-  FX_ARBPOSITION_Medial,
-};
-
-void FX_BidiLine(CFX_WideString& wsText, int32_t iBaseLevel = 0);
-void FX_BidiLine(CFX_TxtCharArray& chars,
-                 int32_t iCount,
-                 int32_t iBaseLevel = 0);
-void FX_BidiLine(CFX_RTFCharArray& chars,
-                 int32_t iCount,
-                 int32_t iBaseLevel = 0);
-
-#endif  // CORE_FXCRT_INCLUDE_FX_ARB_H_
diff --git a/core/fxcrt/include/fx_basic.h b/core/fxcrt/include/fx_basic.h
deleted file mode 100644
index 6a8988d5dc..0000000000
--- a/core/fxcrt/include/fx_basic.h
+++ /dev/null
@@ -1,859 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_BASIC_H_
-#define CORE_FXCRT_INCLUDE_FX_BASIC_H_
-
-#include <algorithm>
-#include <memory>
-
-#include "core/fxcrt/include/fx_memory.h"
-#include "core/fxcrt/include/fx_stream.h"
-#include "core/fxcrt/include/fx_string.h"
-#include "core/fxcrt/include/fx_system.h"
-
-class CFX_BinaryBuf {
- public:
-  CFX_BinaryBuf();
-  explicit CFX_BinaryBuf(FX_STRSIZE size);
-  ~CFX_BinaryBuf();
-
-  uint8_t* GetBuffer() const { return m_pBuffer.get(); }
-  FX_STRSIZE GetSize() const { return m_DataSize; }
-
-  void Clear();
-  void EstimateSize(FX_STRSIZE size, FX_STRSIZE alloc_step = 0);
-  void AppendBlock(const void* pBuf, FX_STRSIZE size);
-  void AppendString(const CFX_ByteString& str) {
-    AppendBlock(str.c_str(), str.GetLength());
-  }
-
-  void AppendByte(uint8_t byte) {
-    ExpandBuf(1);
-    m_pBuffer.get()[m_DataSize++] = byte;
-  }
-
-  void InsertBlock(FX_STRSIZE pos, const void* pBuf, FX_STRSIZE size);
-  void Delete(int start_index, int count);
-
-  // Takes ownership of |pBuf|.
-  void AttachData(uint8_t* pBuf, FX_STRSIZE size);
-
-  // Releases ownership of |m_pBuffer| and returns it.
-  uint8_t* DetachBuffer();
-
- protected:
-  void ExpandBuf(FX_STRSIZE size);
-
-  FX_STRSIZE m_AllocStep;
-  FX_STRSIZE m_AllocSize;
-  FX_STRSIZE m_DataSize;
-  std::unique_ptr<uint8_t, FxFreeDeleter> m_pBuffer;
-};
-
-class CFX_ByteTextBuf : public CFX_BinaryBuf {
- public:
-  FX_STRSIZE GetLength() const { return m_DataSize; }
-  CFX_ByteString MakeString() const {
-    return CFX_ByteString(m_pBuffer.get(), m_DataSize);
-  }
-  CFX_ByteStringC AsStringC() const {
-    return CFX_ByteStringC(m_pBuffer.get(), m_DataSize);
-  }
-
-  void AppendChar(int ch) { AppendByte(static_cast<uint8_t>(ch)); }
-  CFX_ByteTextBuf& operator<<(int i);
-  CFX_ByteTextBuf& operator<<(uint32_t i);
-  CFX_ByteTextBuf& operator<<(double f);
-  CFX_ByteTextBuf& operator<<(const FX_CHAR* pStr) {
-    return *this << CFX_ByteStringC(pStr);
-  }
-  CFX_ByteTextBuf& operator<<(const CFX_ByteString& str) {
-    return *this << str.AsStringC();
-  }
-  CFX_ByteTextBuf& operator<<(const CFX_ByteStringC& lpsz);
-  CFX_ByteTextBuf& operator<<(const CFX_ByteTextBuf& buf);
-};
-
-class CFX_WideTextBuf : public CFX_BinaryBuf {
- public:
-  void AppendChar(FX_WCHAR wch);
-  FX_STRSIZE GetLength() const { return m_DataSize / sizeof(FX_WCHAR); }
-  FX_WCHAR* GetBuffer() const {
-    return reinterpret_cast<FX_WCHAR*>(m_pBuffer.get());
-  }
-
-  CFX_WideStringC AsStringC() const {
-    return CFX_WideStringC(reinterpret_cast<const FX_WCHAR*>(m_pBuffer.get()),
-                           m_DataSize / sizeof(FX_WCHAR));
-  }
-  CFX_WideString MakeString() const {
-    return CFX_WideString(reinterpret_cast<const FX_WCHAR*>(m_pBuffer.get()),
-                          m_DataSize / sizeof(FX_WCHAR));
-  }
-
-  void Delete(int start_index, int count) {
-    CFX_BinaryBuf::Delete(start_index * sizeof(FX_WCHAR),
-                          count * sizeof(FX_WCHAR));
-  }
-
-  CFX_WideTextBuf& operator<<(int i);
-  CFX_WideTextBuf& operator<<(double f);
-  CFX_WideTextBuf& operator<<(const FX_WCHAR* lpsz);
-  CFX_WideTextBuf& operator<<(const CFX_WideStringC& str);
-  CFX_WideTextBuf& operator<<(const CFX_WideString& str);
-  CFX_WideTextBuf& operator<<(const CFX_WideTextBuf& buf);
-};
-
-class CFX_FileBufferArchive {
- public:
-  CFX_FileBufferArchive();
-  ~CFX_FileBufferArchive();
-
-  void Clear();
-  bool Flush();
-  int32_t AppendBlock(const void* pBuf, size_t size);
-  int32_t AppendByte(uint8_t byte);
-  int32_t AppendDWord(uint32_t i);
-  int32_t AppendString(const CFX_ByteStringC& lpsz);
-
-  // |pFile| must outlive the CFX_FileBufferArchive.
-  void AttachFile(IFX_StreamWrite* pFile);
-
- private:
-  static const size_t kBufSize = 32768;
-
-  size_t m_Length;
-  std::unique_ptr<uint8_t, FxFreeDeleter> m_pBuffer;
-  IFX_StreamWrite* m_pFile;
-};
-
-class CFX_CharMap {
- public:
-  static CFX_ByteString GetByteString(uint16_t codepage,
-                                      const CFX_WideStringC& wstr);
-
-  static CFX_WideString GetWideString(uint16_t codepage,
-                                      const CFX_ByteStringC& bstr);
-
-  CFX_CharMap() = delete;
-};
-
-class CFX_UTF8Decoder {
- public:
-  CFX_UTF8Decoder() { m_PendingBytes = 0; }
-
-  void Clear();
-
-  void Input(uint8_t byte);
-
-  void AppendChar(uint32_t ch);
-
-  void ClearStatus() { m_PendingBytes = 0; }
-
-  CFX_WideStringC GetResult() const { return m_Buffer.AsStringC(); }
-
- protected:
-  int m_PendingBytes;
-
-  uint32_t m_PendingChar;
-
-  CFX_WideTextBuf m_Buffer;
-};
-
-class CFX_UTF8Encoder {
- public:
-  CFX_UTF8Encoder() {}
-
-  void Input(FX_WCHAR unicode);
-  void AppendStr(const CFX_ByteStringC& str) { m_Buffer << str; }
-  CFX_ByteStringC GetResult() const { return m_Buffer.AsStringC(); }
-
- protected:
-  CFX_ByteTextBuf m_Buffer;
-};
-
-class CFX_BasicArray {
- protected:
-  explicit CFX_BasicArray(int unit_size);
-  CFX_BasicArray(const CFX_BasicArray&) = delete;
-  ~CFX_BasicArray();
-
-  FX_BOOL SetSize(int nNewSize);
-  FX_BOOL Append(const CFX_BasicArray& src);
-  FX_BOOL Copy(const CFX_BasicArray& src);
-  uint8_t* InsertSpaceAt(int nIndex, int nCount);
-  FX_BOOL RemoveAt(int nIndex, int nCount);
-  FX_BOOL InsertAt(int nStartIndex, const CFX_BasicArray* pNewArray);
-  const void* GetDataPtr(int index) const;
-
- protected:
-  uint8_t* m_pData;
-  int m_nSize;
-  int m_nMaxSize;
-  int m_nUnitSize;
-};
-
-template <class TYPE>
-class CFX_ArrayTemplate : public CFX_BasicArray {
- public:
-  CFX_ArrayTemplate() : CFX_BasicArray(sizeof(TYPE)) {}
-
-  int GetSize() const { return m_nSize; }
-
-  int GetUpperBound() const { return m_nSize - 1; }
-
-  FX_BOOL SetSize(int nNewSize) { return CFX_BasicArray::SetSize(nNewSize); }
-
-  void RemoveAll() { SetSize(0); }
-
-  const TYPE GetAt(int nIndex) const {
-    if (nIndex < 0 || nIndex >= m_nSize) {
-      PDFIUM_IMMEDIATE_CRASH();
-    }
-    return ((const TYPE*)m_pData)[nIndex];
-  }
-
-  FX_BOOL SetAt(int nIndex, TYPE newElement) {
-    if (nIndex < 0 || nIndex >= m_nSize) {
-      return FALSE;
-    }
-    ((TYPE*)m_pData)[nIndex] = newElement;
-    return TRUE;
-  }
-
-  TYPE& ElementAt(int nIndex) {
-    if (nIndex < 0 || nIndex >= m_nSize) {
-      PDFIUM_IMMEDIATE_CRASH();
-    }
-    return ((TYPE*)m_pData)[nIndex];
-  }
-
-  const TYPE* GetData() const { return (const TYPE*)m_pData; }
-
-  TYPE* GetData() { return (TYPE*)m_pData; }
-
-  FX_BOOL SetAtGrow(int nIndex, TYPE newElement) {
-    if (nIndex < 0)
-      return FALSE;
-
-    if (nIndex >= m_nSize && !SetSize(nIndex + 1))
-      return FALSE;
-
-    ((TYPE*)m_pData)[nIndex] = newElement;
-    return TRUE;
-  }
-
-  FX_BOOL Add(TYPE newElement) {
-    if (m_nSize < m_nMaxSize) {
-      m_nSize++;
-    } else if (!SetSize(m_nSize + 1)) {
-      return FALSE;
-    }
-    ((TYPE*)m_pData)[m_nSize - 1] = newElement;
-    return TRUE;
-  }
-
-  FX_BOOL Append(const CFX_ArrayTemplate& src) {
-    return CFX_BasicArray::Append(src);
-  }
-
-  FX_BOOL Copy(const CFX_ArrayTemplate& src) {
-    return CFX_BasicArray::Copy(src);
-  }
-
-  TYPE* GetDataPtr(int index) {
-    return (TYPE*)CFX_BasicArray::GetDataPtr(index);
-  }
-
-  TYPE* AddSpace() { return (TYPE*)CFX_BasicArray::InsertSpaceAt(m_nSize, 1); }
-
-  TYPE* InsertSpaceAt(int nIndex, int nCount) {
-    return (TYPE*)CFX_BasicArray::InsertSpaceAt(nIndex, nCount);
-  }
-
-  const TYPE operator[](int nIndex) const {
-    if (nIndex < 0 || nIndex >= m_nSize) {
-      *(volatile char*)0 = '\0';
-    }
-    return ((const TYPE*)m_pData)[nIndex];
-  }
-
-  TYPE& operator[](int nIndex) {
-    if (nIndex < 0 || nIndex >= m_nSize) {
-      *(volatile char*)0 = '\0';
-    }
-    return ((TYPE*)m_pData)[nIndex];
-  }
-
-  FX_BOOL InsertAt(int nIndex, TYPE newElement, int nCount = 1) {
-    if (!InsertSpaceAt(nIndex, nCount)) {
-      return FALSE;
-    }
-    while (nCount--) {
-      ((TYPE*)m_pData)[nIndex++] = newElement;
-    }
-    return TRUE;
-  }
-
-  FX_BOOL RemoveAt(int nIndex, int nCount = 1) {
-    return CFX_BasicArray::RemoveAt(nIndex, nCount);
-  }
-
-  FX_BOOL InsertAt(int nStartIndex, const CFX_BasicArray* pNewArray) {
-    return CFX_BasicArray::InsertAt(nStartIndex, pNewArray);
-  }
-
-  int Find(TYPE data, int iStart = 0) const {
-    if (iStart < 0) {
-      return -1;
-    }
-    for (; iStart < (int)m_nSize; iStart++)
-      if (((TYPE*)m_pData)[iStart] == data) {
-        return iStart;
-      }
-    return -1;
-  }
-};
-
-#ifdef PDF_ENABLE_XFA
-typedef CFX_ArrayTemplate<CFX_WideStringC> CFX_WideStringCArray;
-typedef CFX_ArrayTemplate<FX_FLOAT> CFX_FloatArray;
-typedef CFX_ArrayTemplate<uint8_t> CFX_ByteArray;
-typedef CFX_ArrayTemplate<int32_t> CFX_Int32Array;
-
-template <class ObjectClass>
-class CFX_ObjectArray : public CFX_BasicArray {
- public:
-  CFX_ObjectArray() : CFX_BasicArray(sizeof(ObjectClass)) {}
-
-  ~CFX_ObjectArray() { RemoveAll(); }
-
-  void Add(const ObjectClass& data) {
-    new ((void*)InsertSpaceAt(m_nSize, 1)) ObjectClass(data);
-  }
-
-  ObjectClass& Add() {
-    return *(ObjectClass*)new ((void*)InsertSpaceAt(m_nSize, 1)) ObjectClass();
-  }
-
-  void* AddSpace() { return InsertSpaceAt(m_nSize, 1); }
-
-  int32_t Append(const CFX_ObjectArray& src,
-                 int32_t nStart = 0,
-                 int32_t nCount = -1) {
-    if (nCount == 0) {
-      return 0;
-    }
-    int32_t nSize = src.GetSize();
-    if (!nSize) {
-      return 0;
-    }
-    ASSERT(nStart > -1 && nStart < nSize);
-    if (nCount < 0) {
-      nCount = nSize;
-    }
-    if (nStart + nCount > nSize) {
-      nCount = nSize - nStart;
-    }
-    if (nCount < 1) {
-      return 0;
-    }
-    nSize = m_nSize;
-    InsertSpaceAt(m_nSize, nCount);
-    ObjectClass* pStartObj = (ObjectClass*)GetDataPtr(nSize);
-    nSize = nStart + nCount;
-    for (int32_t i = nStart; i < nSize; i++, pStartObj++) {
-      new ((void*)pStartObj) ObjectClass(src[i]);
-    }
-    return nCount;
-  }
-
-  int32_t Copy(const CFX_ObjectArray& src,
-               int32_t nStart = 0,
-               int32_t nCount = -1) {
-    if (nCount == 0) {
-      return 0;
-    }
-    int32_t nSize = src.GetSize();
-    if (!nSize) {
-      return 0;
-    }
-    ASSERT(nStart > -1 && nStart < nSize);
-    if (nCount < 0) {
-      nCount = nSize;
-    }
-    if (nStart + nCount > nSize) {
-      nCount = nSize - nStart;
-    }
-    if (nCount < 1) {
-      return 0;
-    }
-    RemoveAll();
-    SetSize(nCount);
-    ObjectClass* pStartObj = (ObjectClass*)m_pData;
-    nSize = nStart + nCount;
-    for (int32_t i = nStart; i < nSize; i++, pStartObj++) {
-      new ((void*)pStartObj) ObjectClass(src[i]);
-    }
-    return nCount;
-  }
-
-  int GetSize() const { return m_nSize; }
-
-  ObjectClass& operator[](int index) const {
-    ASSERT(index < m_nSize);
-    return *(ObjectClass*)CFX_BasicArray::GetDataPtr(index);
-  }
-
-  ObjectClass* GetDataPtr(int index) {
-    return (ObjectClass*)CFX_BasicArray::GetDataPtr(index);
-  }
-
-  void RemoveAt(int index) {
-    ASSERT(index < m_nSize);
-    ((ObjectClass*)GetDataPtr(index))->~ObjectClass();
-    CFX_BasicArray::RemoveAt(index, 1);
-  }
-
-  void RemoveAll() {
-    for (int i = 0; i < m_nSize; i++) {
-      ((ObjectClass*)GetDataPtr(i))->~ObjectClass();
-    }
-    CFX_BasicArray::SetSize(0);
-  }
-};
-typedef CFX_ObjectArray<CFX_ByteString> CFX_ByteStringArray;
-typedef CFX_ObjectArray<CFX_WideString> CFX_WideStringArray;
-#endif  // PDF_ENABLE_XFA
-
-template <class DataType, int FixedSize>
-class CFX_FixedBufGrow {
- public:
-  explicit CFX_FixedBufGrow(int data_size) {
-    if (data_size > FixedSize) {
-      m_pGrowData.reset(FX_Alloc(DataType, data_size));
-      return;
-    }
-    FXSYS_memset(m_FixedData, 0, sizeof(DataType) * FixedSize);
-  }
-  operator DataType*() { return m_pGrowData ? m_pGrowData.get() : m_FixedData; }
-
- private:
-  DataType m_FixedData[FixedSize];
-  std::unique_ptr<DataType, FxFreeDeleter> m_pGrowData;
-};
-
-#ifdef PDF_ENABLE_XFA
-class CFX_MapPtrToPtr {
- protected:
-  struct CAssoc {
-    CAssoc* pNext;
-    void* key;
-    void* value;
-  };
-
- public:
-  CFX_MapPtrToPtr(int nBlockSize = 10);
-  ~CFX_MapPtrToPtr();
-
-  int GetCount() const { return m_nCount; }
-  bool IsEmpty() const { return m_nCount == 0; }
-
-  FX_BOOL Lookup(void* key, void*& rValue) const;
-
-  void* GetValueAt(void* key) const;
-
-  void*& operator[](void* key);
-
-  void SetAt(void* key, void* newValue) { (*this)[key] = newValue; }
-
-  FX_BOOL RemoveKey(void* key);
-
-  void RemoveAll();
-
-  FX_POSITION GetStartPosition() const {
-    return m_nCount == 0 ? nullptr : (FX_POSITION)-1;
-  }
-
-  void GetNextAssoc(FX_POSITION& rNextPosition,
-                    void*& rKey,
-                    void*& rValue) const;
-
-  uint32_t GetHashTableSize() const { return m_nHashTableSize; }
-
-  void InitHashTable(uint32_t hashSize, FX_BOOL bAllocNow = TRUE);
-
- protected:
-  CAssoc** m_pHashTable;
-
-  uint32_t m_nHashTableSize;
-
-  int m_nCount;
-
-  CAssoc* m_pFreeList;
-
-  struct CFX_Plex* m_pBlocks;
-
-  int m_nBlockSize;
-
-  uint32_t HashKey(void* key) const;
-
-  CAssoc* NewAssoc();
-
-  void FreeAssoc(CAssoc* pAssoc);
-
-  CAssoc* GetAssocAt(void* key, uint32_t& hash) const;
-};
-
-template <class KeyType, class ValueType>
-class CFX_MapPtrTemplate : public CFX_MapPtrToPtr {
- public:
-  CFX_MapPtrTemplate() : CFX_MapPtrToPtr(10) {}
-
-  FX_BOOL Lookup(KeyType key, ValueType& rValue) const {
-    void* pValue = nullptr;
-    if (!CFX_MapPtrToPtr::Lookup((void*)(uintptr_t)key, pValue)) {
-      return FALSE;
-    }
-    rValue = (ValueType)(uintptr_t)pValue;
-    return TRUE;
-  }
-
-  ValueType& operator[](KeyType key) {
-    return (ValueType&)CFX_MapPtrToPtr::operator[]((void*)(uintptr_t)key);
-  }
-
-  void SetAt(KeyType key, ValueType newValue) {
-    CFX_MapPtrToPtr::SetAt((void*)(uintptr_t)key, (void*)(uintptr_t)newValue);
-  }
-
-  FX_BOOL RemoveKey(KeyType key) {
-    return CFX_MapPtrToPtr::RemoveKey((void*)(uintptr_t)key);
-  }
-
-  void GetNextAssoc(FX_POSITION& rNextPosition,
-                    KeyType& rKey,
-                    ValueType& rValue) const {
-    void* pKey = nullptr;
-    void* pValue = nullptr;
-    CFX_MapPtrToPtr::GetNextAssoc(rNextPosition, pKey, pValue);
-    rKey = (KeyType)(uintptr_t)pKey;
-    rValue = (ValueType)(uintptr_t)pValue;
-  }
-};
-#endif  // PDF_ENABLE_XFA
-
-class CFX_PtrList {
- protected:
-  struct CNode {
-    CNode* pNext;
-    CNode* pPrev;
-    void* data;
-  };
-
- public:
-  CFX_PtrList(int nBlockSize = 10);
-
-  FX_POSITION GetHeadPosition() const { return (FX_POSITION)m_pNodeHead; }
-  FX_POSITION GetTailPosition() const { return (FX_POSITION)m_pNodeTail; }
-
-  void* GetNext(FX_POSITION& rPosition) const {
-    CNode* pNode = (CNode*)rPosition;
-    rPosition = (FX_POSITION)pNode->pNext;
-    return pNode->data;
-  }
-
-  void* GetPrev(FX_POSITION& rPosition) const {
-    CNode* pNode = (CNode*)rPosition;
-    rPosition = (FX_POSITION)pNode->pPrev;
-    return pNode->data;
-  }
-
-  FX_POSITION GetNextPosition(FX_POSITION pos) const {
-    return ((CNode*)pos)->pNext;
-  }
-
-  FX_POSITION GetPrevPosition(FX_POSITION pos) const {
-    return ((CNode*)pos)->pPrev;
-  }
-
-  void* GetAt(FX_POSITION rPosition) const {
-    CNode* pNode = (CNode*)rPosition;
-    return pNode->data;
-  }
-
-  int GetCount() const { return m_nCount; }
-  FX_POSITION AddTail(void* newElement);
-  FX_POSITION AddHead(void* newElement);
-
-  void SetAt(FX_POSITION pos, void* newElement) {
-    CNode* pNode = (CNode*)pos;
-    pNode->data = newElement;
-  }
-  FX_POSITION InsertAfter(FX_POSITION pos, void* newElement);
-
-  FX_POSITION Find(void* searchValue, FX_POSITION startAfter = nullptr) const;
-  FX_POSITION FindIndex(int index) const;
-
-  void RemoveAt(FX_POSITION pos);
-  void RemoveAll();
-
- protected:
-  CNode* m_pNodeHead;
-  CNode* m_pNodeTail;
-  int m_nCount;
-  CNode* m_pNodeFree;
-  struct CFX_Plex* m_pBlocks;
-  int m_nBlockSize;
-
-  CNode* NewNode(CNode* pPrev, CNode* pNext);
-  void FreeNode(CNode* pNode);
-
- public:
-  ~CFX_PtrList();
-};
-
-#ifdef PDF_ENABLE_XFA
-typedef void (*PD_CALLBACK_FREEDATA)(void* pData);
-#endif  // PDF_ENABLE_XFA
-
-class CFX_BitStream {
- public:
-  void Init(const uint8_t* pData, uint32_t dwSize);
-
-  uint32_t GetBits(uint32_t nBits);
-
-  void ByteAlign();
-
-  FX_BOOL IsEOF() { return m_BitPos >= m_BitSize; }
-
-  void SkipBits(uint32_t nBits) { m_BitPos += nBits; }
-
-  void Rewind() { m_BitPos = 0; }
-
-  uint32_t GetPos() const { return m_BitPos; }
-
-  uint32_t BitsRemaining() const {
-    return m_BitSize >= m_BitPos ? m_BitSize - m_BitPos : 0;
-  }
-
- protected:
-  uint32_t m_BitPos;
-
-  uint32_t m_BitSize;
-
-  const uint8_t* m_pData;
-};
-
-class IFX_Pause {
- public:
-  virtual ~IFX_Pause() {}
-  virtual FX_BOOL NeedToPauseNow() = 0;
-};
-
-template <typename T>
-class CFX_AutoRestorer {
- public:
-  explicit CFX_AutoRestorer(T* location)
-      : m_Location(location), m_OldValue(*location) {}
-  ~CFX_AutoRestorer() { *m_Location = m_OldValue; }
-
- private:
-  T* const m_Location;
-  const T m_OldValue;
-};
-
-#define FX_DATALIST_LENGTH 1024
-template <size_t unit>
-class CFX_SortListArray {
- protected:
-  struct DataList {
-    int32_t start;
-
-    int32_t count;
-    uint8_t* data;
-  };
-
- public:
-  CFX_SortListArray() : m_CurList(0) {}
-
-  ~CFX_SortListArray() { Clear(); }
-
-  void Clear() {
-    for (int32_t i = m_DataLists.GetUpperBound(); i >= 0; i--) {
-      DataList list = m_DataLists.ElementAt(i);
-      FX_Free(list.data);
-    }
-    m_DataLists.RemoveAll();
-    m_CurList = 0;
-  }
-
-  void Append(int32_t nStart, int32_t nCount) {
-    if (nStart < 0) {
-      return;
-    }
-    while (nCount > 0) {
-      int32_t temp_count = std::min(nCount, FX_DATALIST_LENGTH);
-      DataList list;
-      list.data = FX_Alloc2D(uint8_t, temp_count, unit);
-      list.start = nStart;
-      list.count = temp_count;
-      Append(list);
-      nCount -= temp_count;
-      nStart += temp_count;
-    }
-  }
-
-  uint8_t* GetAt(int32_t nIndex) {
-    if (nIndex < 0) {
-      return nullptr;
-    }
-    if (m_CurList < 0 || m_CurList >= m_DataLists.GetSize()) {
-      return nullptr;
-    }
-    DataList* pCurList = m_DataLists.GetDataPtr(m_CurList);
-    if (!pCurList || nIndex < pCurList->start ||
-        nIndex >= pCurList->start + pCurList->count) {
-      pCurList = nullptr;
-      int32_t iStart = 0;
-      int32_t iEnd = m_DataLists.GetUpperBound();
-      int32_t iMid = 0;
-      while (iStart <= iEnd) {
-        iMid = (iStart + iEnd) / 2;
-        DataList* list = m_DataLists.GetDataPtr(iMid);
-        if (nIndex < list->start) {
-          iEnd = iMid - 1;
-        } else if (nIndex >= list->start + list->count) {
-          iStart = iMid + 1;
-        } else {
-          pCurList = list;
-          m_CurList = iMid;
-          break;
-        }
-      }
-    }
-    return pCurList ? pCurList->data + (nIndex - pCurList->start) * unit
-                    : nullptr;
-  }
-
- protected:
-  void Append(const DataList& list) {
-    int32_t iStart = 0;
-    int32_t iEnd = m_DataLists.GetUpperBound();
-    int32_t iFind = 0;
-    while (iStart <= iEnd) {
-      int32_t iMid = (iStart + iEnd) / 2;
-      DataList* cur_list = m_DataLists.GetDataPtr(iMid);
-      if (list.start < cur_list->start + cur_list->count) {
-        iEnd = iMid - 1;
-      } else {
-        if (iMid == iEnd) {
-          iFind = iMid + 1;
-          break;
-        }
-        DataList* next_list = m_DataLists.GetDataPtr(iMid + 1);
-        if (list.start < next_list->start) {
-          iFind = iMid + 1;
-          break;
-        } else {
-          iStart = iMid + 1;
-        }
-      }
-    }
-    m_DataLists.InsertAt(iFind, list);
-  }
-  int32_t m_CurList;
-  CFX_ArrayTemplate<DataList> m_DataLists;
-};
-template <typename T1, typename T2>
-class CFX_ListArrayTemplate {
- public:
-  void Clear() { m_Data.Clear(); }
-
-  void Add(int32_t nStart, int32_t nCount) { m_Data.Append(nStart, nCount); }
-
-  T2& operator[](int32_t nIndex) {
-    uint8_t* data = m_Data.GetAt(nIndex);
-    ASSERT(data);
-    return (T2&)(*(volatile T2*)data);
-  }
-
-  T2* GetPtrAt(int32_t nIndex) { return (T2*)m_Data.GetAt(nIndex); }
-
- protected:
-  T1 m_Data;
-};
-typedef CFX_ListArrayTemplate<CFX_SortListArray<sizeof(FX_FILESIZE)>,
-                              FX_FILESIZE> CFX_FileSizeListArray;
-
-#ifdef PDF_ENABLE_XFA
-class IFX_Retainable {
- public:
-  virtual uint32_t Retain() = 0;
-  virtual uint32_t Release() = 0;
-
- protected:
-  virtual ~IFX_Retainable() {}
-};
-#define FX_IsOdd(a) ((a)&1)
-#endif  // PDF_ENABLE_XFA
-
-class CFX_Vector_3by1 {
- public:
-  CFX_Vector_3by1() : a(0.0f), b(0.0f), c(0.0f) {}
-
-  CFX_Vector_3by1(FX_FLOAT a1, FX_FLOAT b1, FX_FLOAT c1)
-      : a(a1), b(b1), c(c1) {}
-
-  FX_FLOAT a;
-  FX_FLOAT b;
-  FX_FLOAT c;
-};
-class CFX_Matrix_3by3 {
- public:
-  CFX_Matrix_3by3()
-      : a(0.0f),
-        b(0.0f),
-        c(0.0f),
-        d(0.0f),
-        e(0.0f),
-        f(0.0f),
-        g(0.0f),
-        h(0.0f),
-        i(0.0f) {}
-
-  CFX_Matrix_3by3(FX_FLOAT a1,
-                  FX_FLOAT b1,
-                  FX_FLOAT c1,
-                  FX_FLOAT d1,
-                  FX_FLOAT e1,
-                  FX_FLOAT f1,
-                  FX_FLOAT g1,
-                  FX_FLOAT h1,
-                  FX_FLOAT i1)
-      : a(a1), b(b1), c(c1), d(d1), e(e1), f(f1), g(g1), h(h1), i(i1) {}
-
-  CFX_Matrix_3by3 Inverse();
-
-  CFX_Matrix_3by3 Multiply(const CFX_Matrix_3by3& m);
-
-  CFX_Vector_3by1 TransformVector(const CFX_Vector_3by1& v);
-
-  FX_FLOAT a;
-  FX_FLOAT b;
-  FX_FLOAT c;
-  FX_FLOAT d;
-  FX_FLOAT e;
-  FX_FLOAT f;
-  FX_FLOAT g;
-  FX_FLOAT h;
-  FX_FLOAT i;
-};
-
-uint32_t GetBits32(const uint8_t* pData, int bitpos, int nbits);
-
-#endif  // CORE_FXCRT_INCLUDE_FX_BASIC_H_
diff --git a/core/fxcrt/include/fx_coordinates.h b/core/fxcrt/include/fx_coordinates.h
deleted file mode 100644
index a7c01cadb7..0000000000
--- a/core/fxcrt/include/fx_coordinates.h
+++ /dev/null
@@ -1,671 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_COORDINATES_H_
-#define CORE_FXCRT_INCLUDE_FX_COORDINATES_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CFX_Matrix;
-
-template <class BaseType>
-class CFX_PSTemplate {
- public:
-  CFX_PSTemplate() : x(0), y(0) {}
-  CFX_PSTemplate(BaseType new_x, BaseType new_y) : x(new_x), y(new_y) {}
-  CFX_PSTemplate(const CFX_PSTemplate& other) : x(other.x), y(other.y) {}
-  void clear() {
-    x = 0;
-    y = 0;
-  }
-  CFX_PSTemplate operator=(const CFX_PSTemplate& other) {
-    if (this != &other) {
-      x = other.x;
-      y = other.y;
-    }
-    return *this;
-  }
-  bool operator==(const CFX_PSTemplate& other) const {
-    return x == other.x && y == other.y;
-  }
-  bool operator!=(const CFX_PSTemplate& other) const {
-    return !(*this == other);
-  }
-  CFX_PSTemplate& operator+=(const CFX_PSTemplate<BaseType>& obj) {
-    x += obj.x;
-    y += obj.y;
-    return *this;
-  }
-  CFX_PSTemplate& operator-=(const CFX_PSTemplate<BaseType>& obj) {
-    x -= obj.x;
-    y -= obj.y;
-    return *this;
-  }
-  CFX_PSTemplate& operator*=(BaseType factor) {
-    x *= factor;
-    y *= factor;
-    return *this;
-  }
-  CFX_PSTemplate& operator/=(BaseType divisor) {
-    x /= divisor;
-    y /= divisor;
-    return *this;
-  }
-  CFX_PSTemplate operator+(const CFX_PSTemplate& other) {
-    return CFX_PSTemplate(x + other.x, y + other.y);
-  }
-  CFX_PSTemplate operator-(const CFX_PSTemplate& other) {
-    return CFX_PSTemplate(x - other.x, y - other.y);
-  }
-  CFX_PSTemplate operator*(BaseType factor) {
-    return CFX_PSTemplate(x * factor, y * factor);
-  }
-  CFX_PSTemplate operator/(BaseType divisor) {
-    return CFX_PSTemplate(x / divisor, y / divisor);
-  }
-
-  BaseType x;
-  BaseType y;
-};
-typedef CFX_PSTemplate<int32_t> CFX_Point;
-typedef CFX_PSTemplate<FX_FLOAT> CFX_PointF;
-typedef CFX_PSTemplate<int32_t> CFX_Size;
-typedef CFX_PSTemplate<FX_FLOAT> CFX_SizeF;
-typedef CFX_ArrayTemplate<CFX_Point> CFX_Points;
-typedef CFX_ArrayTemplate<CFX_PointF> CFX_PointsF;
-
-template <class BaseType>
-class CFX_VTemplate : public CFX_PSTemplate<BaseType> {
- public:
-  using CFX_PSTemplate<BaseType>::x;
-  using CFX_PSTemplate<BaseType>::y;
-
-  CFX_VTemplate() : CFX_PSTemplate<BaseType>() {}
-  CFX_VTemplate(BaseType new_x, BaseType new_y)
-      : CFX_PSTemplate<BaseType>(new_x, new_y) {}
-
-  CFX_VTemplate(const CFX_VTemplate& other) : CFX_PSTemplate<BaseType>(other) {}
-
-  CFX_VTemplate(const CFX_PSTemplate<BaseType>& point1,
-                const CFX_PSTemplate<BaseType>& point2)
-      : CFX_PSTemplate<BaseType>(point2.x - point1.x, point2.y - point1.y) {}
-
-  FX_FLOAT Length() const { return FXSYS_sqrt(x * x + y * y); }
-  void Normalize() {
-    FX_FLOAT fLen = Length();
-    if (fLen < 0.0001f)
-      return;
-
-    x /= fLen;
-    y /= fLen;
-  }
-  void Translate(BaseType dx, BaseType dy) {
-    x += dx;
-    y += dy;
-  }
-  void Scale(BaseType sx, BaseType sy) {
-    x *= sx;
-    y *= sy;
-  }
-  void Rotate(FX_FLOAT fRadian) {
-    FX_FLOAT cosValue = FXSYS_cos(fRadian);
-    FX_FLOAT sinValue = FXSYS_sin(fRadian);
-    x = x * cosValue - y * sinValue;
-    y = x * sinValue + y * cosValue;
-  }
-};
-typedef CFX_VTemplate<int32_t> CFX_Vector;
-typedef CFX_VTemplate<FX_FLOAT> CFX_VectorF;
-
-// Rectangles.
-// TODO(tsepez): Consolidate all these different rectangle classes.
-
-// LTRB rectangles (y-axis runs downwards).
-struct FX_RECT {
-  FX_RECT() : left(0), top(0), right(0), bottom(0) {}
-
-  FX_RECT(int l, int t, int r, int b) : left(l), top(t), right(r), bottom(b) {}
-
-  int Width() const { return right - left; }
-  int Height() const { return bottom - top; }
-  bool IsEmpty() const { return right <= left || bottom <= top; }
-
-  bool Valid() const {
-    pdfium::base::CheckedNumeric<int> w = right;
-    pdfium::base::CheckedNumeric<int> h = bottom;
-    w -= left;
-    h -= top;
-    return w.IsValid() && h.IsValid();
-  }
-
-  void Normalize();
-
-  void Intersect(const FX_RECT& src);
-  void Intersect(int l, int t, int r, int b) { Intersect(FX_RECT(l, t, r, b)); }
-
-  void Union(const FX_RECT& other_rect);
-  void Union(int l, int t, int r, int b) { Union(FX_RECT(l, t, r, b)); }
-
-  void Offset(int dx, int dy) {
-    left += dx;
-    right += dx;
-    top += dy;
-    bottom += dy;
-  }
-
-  bool operator==(const FX_RECT& src) const {
-    return left == src.left && right == src.right && top == src.top &&
-           bottom == src.bottom;
-  }
-
-  bool Contains(const FX_RECT& other_rect) const {
-    return other_rect.left >= left && other_rect.right <= right &&
-           other_rect.top >= top && other_rect.bottom <= bottom;
-  }
-
-  bool Contains(int x, int y) const {
-    return x >= left && x < right && y >= top && y < bottom;
-  }
-
-  int32_t left;
-  int32_t top;
-  int32_t right;
-  int32_t bottom;
-};
-
-// LBRT rectangles (y-axis runs upwards).
-class CFX_FloatPoint {
- public:
-  CFX_FloatPoint() : x(0.0f), y(0.0f) {}
-  CFX_FloatPoint(FX_FLOAT xx, FX_FLOAT yy) : x(xx), y(yy) {}
-
-  bool operator==(const CFX_FloatPoint& that) const {
-    return x == that.x && y == that.y;
-  }
-  bool operator!=(const CFX_FloatPoint& that) const { return !(*this == that); }
-
-  FX_FLOAT x;
-  FX_FLOAT y;
-};
-
-// LTWH rectangles (y-axis runs downwards).
-template <class baseType>
-class CFX_RTemplate {
- public:
-  typedef CFX_PSTemplate<baseType> FXT_POINT;
-  typedef CFX_PSTemplate<baseType> FXT_SIZE;
-  typedef CFX_VTemplate<baseType> FXT_VECTOR;
-  typedef CFX_RTemplate<baseType> FXT_RECT;
-  void Set(baseType dst_left,
-           baseType dst_top,
-           baseType dst_width,
-           baseType dst_height) {
-    left = dst_left;
-    top = dst_top;
-    width = dst_width;
-    height = dst_height;
-  }
-  void Set(baseType dst_left, baseType dst_top, const FXT_SIZE& dst_size) {
-    left = dst_left;
-    top = dst_top;
-    Size(dst_size);
-  }
-  void Set(const FXT_POINT& p, baseType dst_width, baseType dst_height) {
-    TopLeft(p);
-    width = dst_width;
-    height = dst_height;
-  }
-  void Set(const FXT_POINT& p1, const FXT_POINT& p2) {
-    TopLeft(p1);
-    width = p2.x - p1.x;
-    height = p2.y - p1.y;
-    Normalize();
-  }
-  void Set(const FXT_POINT& p, const FXT_VECTOR& v) {
-    TopLeft(p);
-    width = v.x;
-    height = v.y;
-    Normalize();
-  }
-  void Reset() {
-    left = 0;
-    top = 0;
-    width = 0;
-    height = 0;
-  }
-  FXT_RECT& operator+=(const FXT_POINT& p) {
-    left += p.x;
-    top += p.y;
-    return *this;
-  }
-  FXT_RECT& operator-=(const FXT_POINT& p) {
-    left -= p.x;
-    top -= p.y;
-    return *this;
-  }
-  baseType right() const { return left + width; }
-  baseType bottom() const { return top + height; }
-  void Normalize() {
-    if (width < 0) {
-      left += width;
-      width = -width;
-    }
-    if (height < 0) {
-      top += height;
-      height = -height;
-    }
-  }
-  void Offset(baseType dx, baseType dy) {
-    left += dx;
-    top += dy;
-  }
-  void Inflate(baseType x, baseType y) {
-    left -= x;
-    width += x * 2;
-    top -= y;
-    height += y * 2;
-  }
-  void Inflate(const FXT_POINT& p) { Inflate(p.x, p.y); }
-  void Inflate(baseType off_left,
-               baseType off_top,
-               baseType off_right,
-               baseType off_bottom) {
-    left -= off_left;
-    top -= off_top;
-    width += off_left + off_right;
-    height += off_top + off_bottom;
-  }
-  void Inflate(const FXT_RECT& rt) {
-    Inflate(rt.left, rt.top, rt.left + rt.width, rt.top + rt.height);
-  }
-  void Deflate(baseType x, baseType y) {
-    left += x;
-    width -= x * 2;
-    top += y;
-    height -= y * 2;
-  }
-  void Deflate(const FXT_POINT& p) { Deflate(p.x, p.y); }
-  void Deflate(baseType off_left,
-               baseType off_top,
-               baseType off_right,
-               baseType off_bottom) {
-    left += off_left;
-    top += off_top;
-    width -= off_left + off_right;
-    height -= off_top + off_bottom;
-  }
-  void Deflate(const FXT_RECT& rt) {
-    Deflate(rt.left, rt.top, rt.top + rt.width, rt.top + rt.height);
-  }
-  FX_BOOL IsEmpty() const { return width <= 0 || height <= 0; }
-  FX_BOOL IsEmpty(FX_FLOAT fEpsilon) const {
-    return width <= fEpsilon || height <= fEpsilon;
-  }
-  void Empty() { width = height = 0; }
-  bool Contains(baseType x, baseType y) const {
-    return x >= left && x < left + width && y >= top && y < top + height;
-  }
-  bool Contains(const FXT_POINT& p) const { return Contains(p.x, p.y); }
-  bool Contains(const FXT_RECT& rt) const {
-    return rt.left >= left && rt.right() <= right() && rt.top >= top &&
-           rt.bottom() <= bottom();
-  }
-  baseType Width() const { return width; }
-  baseType Height() const { return height; }
-  FXT_SIZE Size() const {
-    FXT_SIZE size;
-    size.Set(width, height);
-    return size;
-  }
-  void Size(FXT_SIZE s) { width = s.x, height = s.y; }
-  FXT_POINT TopLeft() const {
-    FXT_POINT p;
-    p.x = left;
-    p.y = top;
-    return p;
-  }
-  FXT_POINT TopRight() const {
-    FXT_POINT p;
-    p.x = left + width;
-    p.y = top;
-    return p;
-  }
-  FXT_POINT BottomLeft() const {
-    FXT_POINT p;
-    p.x = left;
-    p.y = top + height;
-    return p;
-  }
-  FXT_POINT BottomRight() const {
-    FXT_POINT p;
-    p.x = left + width;
-    p.y = top + height;
-    return p;
-  }
-  void TopLeft(FXT_POINT tl) {
-    left = tl.x;
-    top = tl.y;
-  }
-  void TopRight(FXT_POINT tr) {
-    width = tr.x - left;
-    top = tr.y;
-  }
-  void BottomLeft(FXT_POINT bl) {
-    left = bl.x;
-    height = bl.y - top;
-  }
-  void BottomRight(FXT_POINT br) {
-    width = br.x - left;
-    height = br.y - top;
-  }
-  FXT_POINT Center() const {
-    FXT_POINT p;
-    p.x = left + width / 2;
-    p.y = top + height / 2;
-    return p;
-  }
-  void Union(baseType x, baseType y) {
-    baseType r = right();
-    baseType b = bottom();
-    if (left > x)
-      left = x;
-    if (r < x)
-      r = x;
-    if (top > y)
-      top = y;
-    if (b < y)
-      b = y;
-    width = r - left;
-    height = b - top;
-  }
-  void Union(const FXT_POINT& p) { Union(p.x, p.y); }
-  void Union(const FXT_RECT& rt) {
-    baseType r = right();
-    baseType b = bottom();
-    if (left > rt.left)
-      left = rt.left;
-    if (r < rt.right())
-      r = rt.right();
-    if (top > rt.top)
-      top = rt.top;
-    if (b < rt.bottom())
-      b = rt.bottom();
-    width = r - left;
-    height = b - top;
-  }
-  void Intersect(const FXT_RECT& rt) {
-    baseType r = right();
-    baseType b = bottom();
-    if (left < rt.left)
-      left = rt.left;
-    if (r > rt.right())
-      r = rt.right();
-    if (top < rt.top)
-      top = rt.top;
-    if (b > rt.bottom())
-      b = rt.bottom();
-    width = r - left;
-    height = b - top;
-  }
-  FX_BOOL IntersectWith(const FXT_RECT& rt) const {
-    FXT_RECT rect = rt;
-    rect.Intersect(*this);
-    return !rect.IsEmpty();
-  }
-  FX_BOOL IntersectWith(const FXT_RECT& rt, FX_FLOAT fEpsilon) const {
-    FXT_RECT rect = rt;
-    rect.Intersect(*this);
-    return !rect.IsEmpty(fEpsilon);
-  }
-  friend bool operator==(const FXT_RECT& rc1, const FXT_RECT& rc2) {
-    return rc1.left == rc2.left && rc1.top == rc2.top &&
-           rc1.width == rc2.width && rc1.height == rc2.height;
-  }
-  friend bool operator!=(const FXT_RECT& rc1, const FXT_RECT& rc2) {
-    return !(rc1 == rc2);
-  }
-  baseType left, top;
-  baseType width, height;
-};
-typedef CFX_RTemplate<int32_t> CFX_Rect;
-typedef CFX_RTemplate<FX_FLOAT> CFX_RectF;
-typedef CFX_ArrayTemplate<CFX_RectF> CFX_RectFArray;
-
-class CFX_FloatRect {
- public:
-  CFX_FloatRect() : CFX_FloatRect(0.0f, 0.0f, 0.0f, 0.0f) {}
-  CFX_FloatRect(FX_FLOAT l, FX_FLOAT b, FX_FLOAT r, FX_FLOAT t)
-      : left(l), bottom(b), right(r), top(t) {}
-
-  explicit CFX_FloatRect(const FX_FLOAT* pArray)
-      : CFX_FloatRect(pArray[0], pArray[1], pArray[2], pArray[3]) {}
-
-  explicit CFX_FloatRect(const FX_RECT& rect);
-
-  void Normalize();
-
-  void Reset() {
-    left = 0.0f;
-    right = 0.0f;
-    bottom = 0.0f;
-    top = 0.0f;
-  }
-
-  bool IsEmpty() const { return left >= right || bottom >= top; }
-  bool Contains(const CFX_FloatRect& other_rect) const;
-  bool Contains(FX_FLOAT x, FX_FLOAT y) const;
-
-  void Transform(const CFX_Matrix* pMatrix);
-  void Intersect(const CFX_FloatRect& other_rect);
-  void Union(const CFX_FloatRect& other_rect);
-
-  FX_RECT GetInnerRect() const;
-  FX_RECT GetOuterRect() const;
-  FX_RECT GetClosestRect() const;
-
-  int Substract4(CFX_FloatRect& substract_rect, CFX_FloatRect* pRects);
-
-  void InitRect(FX_FLOAT x, FX_FLOAT y) {
-    left = x;
-    right = x;
-    bottom = y;
-    top = y;
-  }
-  void UpdateRect(FX_FLOAT x, FX_FLOAT y);
-
-  FX_FLOAT Width() const { return right - left; }
-  FX_FLOAT Height() const { return top - bottom; }
-
-  void Inflate(FX_FLOAT x, FX_FLOAT y) {
-    Normalize();
-    left -= x;
-    right += x;
-    bottom -= y;
-    top += y;
-  }
-
-  void Inflate(FX_FLOAT other_left,
-               FX_FLOAT other_bottom,
-               FX_FLOAT other_right,
-               FX_FLOAT other_top) {
-    Normalize();
-    left -= other_left;
-    bottom -= other_bottom;
-    right += other_right;
-    top += other_top;
-  }
-
-  void Inflate(const CFX_FloatRect& rt) {
-    Inflate(rt.left, rt.bottom, rt.right, rt.top);
-  }
-
-  void Deflate(FX_FLOAT x, FX_FLOAT y) {
-    Normalize();
-    left += x;
-    right -= x;
-    bottom += y;
-    top -= y;
-  }
-
-  void Deflate(FX_FLOAT other_left,
-               FX_FLOAT other_bottom,
-               FX_FLOAT other_right,
-               FX_FLOAT other_top) {
-    Normalize();
-    left += other_left;
-    bottom += other_bottom;
-    right -= other_right;
-    top -= other_top;
-  }
-
-  void Deflate(const CFX_FloatRect& rt) {
-    Deflate(rt.left, rt.bottom, rt.right, rt.top);
-  }
-
-  void Translate(FX_FLOAT e, FX_FLOAT f) {
-    left += e;
-    right += e;
-    top += f;
-    bottom += f;
-  }
-
-  static CFX_FloatRect GetBBox(const CFX_PointF* pPoints, int nPoints);
-
-  FX_RECT ToFxRect() const {
-    return FX_RECT(static_cast<int32_t>(left), static_cast<int32_t>(top),
-                   static_cast<int32_t>(right), static_cast<int32_t>(bottom));
-  }
-
-  static CFX_FloatRect FromCFXRectF(const CFX_RectF& rect) {
-    return CFX_FloatRect(rect.left, rect.top, rect.right(), rect.bottom());
-  }
-
-  FX_FLOAT left;
-  FX_FLOAT bottom;
-  FX_FLOAT right;
-  FX_FLOAT top;
-};
-
-class CFX_Matrix {
- public:
-  CFX_Matrix() { SetIdentity(); }
-
-  CFX_Matrix(FX_FLOAT a1,
-             FX_FLOAT b1,
-             FX_FLOAT c1,
-             FX_FLOAT d1,
-             FX_FLOAT e1,
-             FX_FLOAT f1) {
-    a = a1;
-    b = b1;
-    c = c1;
-    d = d1;
-    e = e1;
-    f = f1;
-  }
-
-  void Set(FX_FLOAT a,
-           FX_FLOAT b,
-           FX_FLOAT c,
-           FX_FLOAT d,
-           FX_FLOAT e,
-           FX_FLOAT f);
-  void Set(const FX_FLOAT n[6]);
-
-  void SetIdentity() {
-    a = d = 1;
-    b = c = e = f = 0;
-  }
-
-  void SetReverse(const CFX_Matrix& m);
-
-  void Concat(FX_FLOAT a,
-              FX_FLOAT b,
-              FX_FLOAT c,
-              FX_FLOAT d,
-              FX_FLOAT e,
-              FX_FLOAT f,
-              FX_BOOL bPrepended = FALSE);
-  void Concat(const CFX_Matrix& m, FX_BOOL bPrepended = FALSE);
-  void ConcatInverse(const CFX_Matrix& m, FX_BOOL bPrepended = FALSE);
-
-  FX_BOOL IsIdentity() const {
-    return a == 1 && b == 0 && c == 0 && d == 1 && e == 0 && f == 0;
-  }
-
-  FX_BOOL IsInvertible() const;
-  FX_BOOL Is90Rotated() const;
-  FX_BOOL IsScaled() const;
-
-  void Translate(FX_FLOAT x, FX_FLOAT y, FX_BOOL bPrepended = FALSE);
-  void TranslateI(int32_t x, int32_t y, FX_BOOL bPrepended = FALSE) {
-    Translate((FX_FLOAT)x, (FX_FLOAT)y, bPrepended);
-  }
-
-  void Scale(FX_FLOAT sx, FX_FLOAT sy, FX_BOOL bPrepended = FALSE);
-  void Rotate(FX_FLOAT fRadian, FX_BOOL bPrepended = FALSE);
-  void RotateAt(FX_FLOAT fRadian,
-                FX_FLOAT x,
-                FX_FLOAT y,
-                FX_BOOL bPrepended = FALSE);
-
-  void Shear(FX_FLOAT fAlphaRadian,
-             FX_FLOAT fBetaRadian,
-             FX_BOOL bPrepended = FALSE);
-
-  void MatchRect(const CFX_FloatRect& dest, const CFX_FloatRect& src);
-  FX_FLOAT GetXUnit() const;
-  FX_FLOAT GetYUnit() const;
-  void GetUnitRect(CFX_RectF& rect) const;
-  CFX_FloatRect GetUnitRect() const;
-
-  FX_FLOAT GetUnitArea() const;
-  FX_FLOAT TransformXDistance(FX_FLOAT dx) const;
-  int32_t TransformXDistance(int32_t dx) const;
-  FX_FLOAT TransformYDistance(FX_FLOAT dy) const;
-  int32_t TransformYDistance(int32_t dy) const;
-  FX_FLOAT TransformDistance(FX_FLOAT dx, FX_FLOAT dy) const;
-  int32_t TransformDistance(int32_t dx, int32_t dy) const;
-  FX_FLOAT TransformDistance(FX_FLOAT distance) const;
-
-  void TransformPoint(FX_FLOAT& x, FX_FLOAT& y) const;
-  void TransformPoint(int32_t& x, int32_t& y) const;
-
-  void Transform(FX_FLOAT& x, FX_FLOAT& y) const { TransformPoint(x, y); }
-  void Transform(FX_FLOAT x, FX_FLOAT y, FX_FLOAT& x1, FX_FLOAT& y1) const {
-    x1 = x, y1 = y;
-    TransformPoint(x1, y1);
-  }
-
-  void TransformVector(CFX_VectorF& v) const;
-  void TransformVector(CFX_Vector& v) const;
-  void TransformRect(CFX_RectF& rect) const;
-  void TransformRect(CFX_Rect& rect) const;
-  void TransformRect(FX_FLOAT& left,
-                     FX_FLOAT& right,
-                     FX_FLOAT& top,
-                     FX_FLOAT& bottom) const;
-  void TransformRect(CFX_FloatRect& rect) const {
-    TransformRect(rect.left, rect.right, rect.top, rect.bottom);
-  }
-
-  FX_FLOAT GetA() const { return a; }
-  FX_FLOAT GetB() const { return b; }
-  FX_FLOAT GetC() const { return c; }
-  FX_FLOAT GetD() const { return d; }
-  FX_FLOAT GetE() const { return e; }
-  FX_FLOAT GetF() const { return f; }
-
- public:
-  FX_FLOAT a;
-  FX_FLOAT b;
-  FX_FLOAT c;
-  FX_FLOAT d;
-  FX_FLOAT e;
-  FX_FLOAT f;
-};
-
-#endif  // CORE_FXCRT_INCLUDE_FX_COORDINATES_H_
diff --git a/core/fxcrt/include/fx_ext.h b/core/fxcrt/include/fx_ext.h
deleted file mode 100644
index e33d57bdb7..0000000000
--- a/core/fxcrt/include/fx_ext.h
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_EXT_H_
-#define CORE_FXCRT_INCLUDE_FX_EXT_H_
-
-#include <cctype>
-#include <cwctype>
-
-#include "core/fxcrt/include/fx_basic.h"
-
-#define FX_INVALID_OFFSET static_cast<uint32_t>(-1)
-
-// TODO(thestig) Using unique_ptr with ReleaseDeleter is still not ideal.
-// Come up or wait for something better. This appears in this file rather
-// than fx_stream.h due to include ordering restrictions.
-using ScopedFileStream =
-    std::unique_ptr<IFX_FileStream, ReleaseDeleter<IFX_FileStream>>;
-
-FX_FLOAT FXSYS_tan(FX_FLOAT a);
-FX_FLOAT FXSYS_logb(FX_FLOAT b, FX_FLOAT x);
-FX_FLOAT FXSYS_strtof(const FX_CHAR* pcsStr,
-                      int32_t iLength = -1,
-                      int32_t* pUsedLen = nullptr);
-FX_FLOAT FXSYS_wcstof(const FX_WCHAR* pwsStr,
-                      int32_t iLength = -1,
-                      int32_t* pUsedLen = nullptr);
-FX_WCHAR* FXSYS_wcsncpy(FX_WCHAR* dstStr, const FX_WCHAR* srcStr, size_t count);
-int32_t FXSYS_wcsnicmp(const FX_WCHAR* s1, const FX_WCHAR* s2, size_t count);
-int32_t FXSYS_strnicmp(const FX_CHAR* s1, const FX_CHAR* s2, size_t count);
-
-inline bool FXSYS_islower(int32_t ch) {
-  return ch >= 'a' && ch <= 'z';
-}
-inline bool FXSYS_isupper(int32_t ch) {
-  return ch >= 'A' && ch <= 'Z';
-}
-inline int32_t FXSYS_tolower(int32_t ch) {
-  return ch < 'A' || ch > 'Z' ? ch : (ch + 0x20);
-}
-inline int32_t FXSYS_toupper(int32_t ch) {
-  return ch < 'a' || ch > 'z' ? ch : (ch - 0x20);
-}
-inline bool FXSYS_iswalpha(wchar_t wch) {
-  return (wch >= L'A' && wch <= L'Z') || (wch >= L'a' && wch <= L'z');
-}
-inline bool FXSYS_iswdigit(wchar_t wch) {
-  return wch >= L'0' && wch <= L'9';
-}
-inline bool FXSYS_iswalnum(wchar_t wch) {
-  return FXSYS_iswalpha(wch) || FXSYS_iswdigit(wch);
-}
-inline bool FXSYS_iswspace(FX_WCHAR c) {
-  return (c == 0x20) || (c == 0x0d) || (c == 0x0a) || (c == 0x09);
-}
-
-inline int FXSYS_toHexDigit(const FX_CHAR c) {
-  if (!std::isxdigit(c))
-    return 0;
-  char upchar = std::toupper(c);
-  return upchar > '9' ? upchar - 'A' + 10 : upchar - '0';
-}
-
-inline bool FXSYS_isDecimalDigit(const FX_CHAR c) {
-  return !!std::isdigit(c);
-}
-
-inline bool FXSYS_isDecimalDigit(const FX_WCHAR c) {
-  return !!std::iswdigit(c);
-}
-
-inline int FXSYS_toDecimalDigit(const FX_CHAR c) {
-  return std::isdigit(c) ? c - '0' : 0;
-}
-
-inline int FXSYS_toDecimalDigit(const FX_WCHAR c) {
-  return std::iswdigit(c) ? c - L'0' : 0;
-}
-
-FX_FLOAT FXSYS_FractionalScale(size_t scale_factor, int value);
-int FXSYS_FractionalScaleCount();
-
-void* FX_Random_MT_Start(uint32_t dwSeed);
-void FX_Random_MT_Close(void* pContext);
-uint32_t FX_Random_MT_Generate(void* pContext);
-void FX_Random_GenerateBase(uint32_t* pBuffer, int32_t iCount);
-void FX_Random_GenerateMT(uint32_t* pBuffer, int32_t iCount);
-void FX_Random_GenerateCrypto(uint32_t* pBuffer, int32_t iCount);
-
-#ifdef PDF_ENABLE_XFA
-typedef struct FX_GUID {
-  uint32_t data1;
-  uint16_t data2;
-  uint16_t data3;
-  uint8_t data4[8];
-} FX_GUID, *FX_LPGUID;
-typedef FX_GUID const* FX_LPCGUID;
-void FX_GUID_CreateV4(FX_LPGUID pGUID);
-void FX_GUID_ToString(FX_LPCGUID pGUID,
-                      CFX_ByteString& bsStr,
-                      FX_BOOL bSeparator = TRUE);
-#endif  // PDF_ENABLE_XFA
-
-template <class baseType>
-class CFX_SSortTemplate {
- public:
-  void ShellSort(baseType* pArray, int32_t iCount) {
-    ASSERT(pArray && iCount > 0);
-    int32_t i, j, gap;
-    baseType v1, v2;
-    gap = iCount >> 1;
-    while (gap > 0) {
-      for (i = gap; i < iCount; i++) {
-        j = i - gap;
-        v1 = pArray[i];
-        while (j > -1 && (v2 = pArray[j]) > v1) {
-          pArray[j + gap] = v2;
-          j -= gap;
-        }
-        pArray[j + gap] = v1;
-      }
-      gap >>= 1;
-    }
-  }
-};
-
-#endif  // CORE_FXCRT_INCLUDE_FX_EXT_H_
diff --git a/core/fxcrt/include/fx_memory.h b/core/fxcrt/include/fx_memory.h
deleted file mode 100644
index a3eba2fd79..0000000000
--- a/core/fxcrt/include/fx_memory.h
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_MEMORY_H_
-#define CORE_FXCRT_INCLUDE_FX_MEMORY_H_
-
-#include "core/fxcrt/include/fx_system.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-// For external C libraries to malloc through PDFium. These may return nullptr.
-void* FXMEM_DefaultAlloc(size_t byte_size, int flags);
-void* FXMEM_DefaultRealloc(void* pointer, size_t new_size, int flags);
-void FXMEM_DefaultFree(void* pointer, int flags);
-
-#ifdef __cplusplus
-}  // extern "C"
-
-#include <stdlib.h>
-#include <limits>
-#include <memory>
-#include <new>
-
-NEVER_INLINE void FX_OutOfMemoryTerminate();
-
-inline void* FX_SafeRealloc(void* ptr, size_t num_members, size_t member_size) {
-  if (num_members < std::numeric_limits<size_t>::max() / member_size) {
-    return realloc(ptr, num_members * member_size);
-  }
-  return nullptr;
-}
-
-inline void* FX_AllocOrDie(size_t num_members, size_t member_size) {
-  // TODO(tsepez): See if we can avoid the implicit memset(0).
-  if (void* result = calloc(num_members, member_size)) {
-    return result;
-  }
-  FX_OutOfMemoryTerminate();  // Never returns.
-  return nullptr;             // Suppress compiler warning.
-}
-
-inline void* FX_AllocOrDie2D(size_t w, size_t h, size_t member_size) {
-  if (w < std::numeric_limits<size_t>::max() / h) {
-    return FX_AllocOrDie(w * h, member_size);
-  }
-  FX_OutOfMemoryTerminate();  // Never returns.
-  return nullptr;             // Suppress compiler warning.
-}
-
-inline void* FX_ReallocOrDie(void* ptr,
-                             size_t num_members,
-                             size_t member_size) {
-  if (void* result = FX_SafeRealloc(ptr, num_members, member_size)) {
-    return result;
-  }
-  FX_OutOfMemoryTerminate();  // Never returns.
-  return nullptr;             // Suppress compiler warning.
-}
-
-// Never returns nullptr.
-#define FX_Alloc(type, size) (type*) FX_AllocOrDie(size, sizeof(type))
-#define FX_Alloc2D(type, w, h) (type*) FX_AllocOrDie2D(w, h, sizeof(type))
-#define FX_Realloc(type, ptr, size) \
-  (type*) FX_ReallocOrDie(ptr, size, sizeof(type))
-
-// May return nullptr.
-#define FX_TryAlloc(type, size) (type*) calloc(size, sizeof(type))
-#define FX_TryRealloc(type, ptr, size) \
-  (type*) FX_SafeRealloc(ptr, size, sizeof(type))
-
-#define FX_Free(ptr) free(ptr)
-
-// The FX_ArraySize(arr) macro returns the # of elements in an array arr.
-// The expression is a compile-time constant, and therefore can be
-// used in defining new arrays, for example.  If you use FX_ArraySize on
-// a pointer by mistake, you will get a compile-time error.
-//
-// One caveat is that FX_ArraySize() doesn't accept any array of an
-// anonymous type or a type defined inside a function.
-#define FX_ArraySize(array) (sizeof(ArraySizeHelper(array)))
-
-// This template function declaration is used in defining FX_ArraySize.
-// Note that the function doesn't need an implementation, as we only
-// use its type.
-template <typename T, size_t N>
-char(&ArraySizeHelper(T(&array)[N]))[N];
-
-// Used with std::unique_ptr to FX_Free raw memory.
-struct FxFreeDeleter {
-  inline void operator()(void* ptr) const { FX_Free(ptr); }
-};
-
-// Used with std::unique_ptr to Release() objects that can't be deleted.
-template <class T>
-struct ReleaseDeleter {
-  inline void operator()(T* ptr) const { ptr->Release(); }
-};
-
-// Used to help transfer ownership of a raw pointer to std::unique_ptr.
-template <typename T>
-std::unique_ptr<T> WrapUnique(T* ptr) {
-  return std::unique_ptr<T>(ptr);
-}
-
-#endif  // __cplusplus
-
-#endif  // CORE_FXCRT_INCLUDE_FX_MEMORY_H_
diff --git a/core/fxcrt/include/fx_safe_types.h b/core/fxcrt/include/fx_safe_types.h
deleted file mode 100644
index f12e74906b..0000000000
--- a/core/fxcrt/include/fx_safe_types.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CORE_FXCRT_INCLUDE_FX_SAFE_TYPES_H_
-#define CORE_FXCRT_INCLUDE_FX_SAFE_TYPES_H_
-
-#include <stdlib.h>  // For size_t.
-
-#include "core/fxcrt/include/fx_stream.h"  // for FX_FILESIZE.
-#include "core/fxcrt/include/fx_system.h"
-#include "third_party/base/numerics/safe_math.h"
-
-typedef pdfium::base::CheckedNumeric<uint32_t> FX_SAFE_UINT32;
-typedef pdfium::base::CheckedNumeric<int32_t> FX_SAFE_INT32;
-typedef pdfium::base::CheckedNumeric<size_t> FX_SAFE_SIZE_T;
-typedef pdfium::base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE;
-typedef pdfium::base::CheckedNumeric<FX_STRSIZE> FX_SAFE_STRSIZE;
-
-#endif  // CORE_FXCRT_INCLUDE_FX_SAFE_TYPES_H_
diff --git a/core/fxcrt/include/fx_stream.h b/core/fxcrt/include/fx_stream.h
deleted file mode 100644
index a91b59f285..0000000000
--- a/core/fxcrt/include/fx_stream.h
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_STREAM_H_
-#define CORE_FXCRT_INCLUDE_FX_STREAM_H_
-
-#include "core/fxcrt/include/fx_string.h"
-#include "core/fxcrt/include/fx_system.h"
-
-void* FX_OpenFolder(const FX_CHAR* path);
-void* FX_OpenFolder(const FX_WCHAR* path);
-FX_BOOL FX_GetNextFile(void* handle,
-                       CFX_ByteString& filename,
-                       FX_BOOL& bFolder);
-FX_BOOL FX_GetNextFile(void* handle,
-                       CFX_WideString& filename,
-                       FX_BOOL& bFolder);
-void FX_CloseFolder(void* handle);
-FX_WCHAR FX_GetFolderSeparator();
-
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-#define FX_FILESIZE int32_t
-#else
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif  // O_BINARY
-
-#ifndef O_LARGEFILE
-#define O_LARGEFILE 0
-#endif  // O_LARGEFILE
-
-#define FX_FILESIZE off_t
-#endif  // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-
-#define FX_GETBYTEOFFSET32(a) 0
-#define FX_GETBYTEOFFSET40(a) 0
-#define FX_GETBYTEOFFSET48(a) 0
-#define FX_GETBYTEOFFSET56(a) 0
-#define FX_GETBYTEOFFSET24(a) ((uint8_t)(a >> 24))
-#define FX_GETBYTEOFFSET16(a) ((uint8_t)(a >> 16))
-#define FX_GETBYTEOFFSET8(a) ((uint8_t)(a >> 8))
-#define FX_GETBYTEOFFSET0(a) ((uint8_t)(a))
-#define FX_FILEMODE_Write 0
-#define FX_FILEMODE_ReadOnly 1
-#define FX_FILEMODE_Truncate 2
-
-class IFX_StreamWrite {
- public:
-  virtual ~IFX_StreamWrite() {}
-  virtual void Release() = 0;
-  virtual FX_BOOL WriteBlock(const void* pData, size_t size) = 0;
-};
-
-class IFX_FileWrite : public IFX_StreamWrite {
- public:
-  // IFX_StreamWrite:
-  FX_BOOL WriteBlock(const void* pData, size_t size) override;
-  virtual FX_FILESIZE GetSize() = 0;
-  virtual FX_BOOL Flush() = 0;
-  virtual FX_BOOL WriteBlock(const void* pData,
-                             FX_FILESIZE offset,
-                             size_t size) = 0;
-};
-
-class IFX_StreamRead {
- public:
-  virtual ~IFX_StreamRead() {}
-
-  virtual void Release() = 0;
-  virtual FX_BOOL IsEOF() = 0;
-  virtual FX_FILESIZE GetPosition() = 0;
-  virtual size_t ReadBlock(void* buffer, size_t size) = 0;
-};
-
-class IFX_FileRead : public IFX_StreamRead {
- public:
-  // IFX_StreamRead:
-  void Release() override = 0;
-  FX_BOOL IsEOF() override;
-  FX_FILESIZE GetPosition() override;
-  size_t ReadBlock(void* buffer, size_t size) override;
-
-  virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0;
-  virtual FX_FILESIZE GetSize() = 0;
-};
-
-IFX_FileRead* FX_CreateFileRead(const FX_CHAR* filename);
-IFX_FileRead* FX_CreateFileRead(const FX_WCHAR* filename);
-
-class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite {
- public:
-  virtual IFX_FileStream* Retain() = 0;
-
-  // IFX_FileRead:
-  void Release() override = 0;
-  FX_BOOL IsEOF() override = 0;
-  FX_FILESIZE GetPosition() override = 0;
-  size_t ReadBlock(void* buffer, size_t size) override = 0;
-  FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override = 0;
-  FX_FILESIZE GetSize() override = 0;
-
-  // IFX_FileWrite:
-  FX_BOOL WriteBlock(const void* buffer,
-                     FX_FILESIZE offset,
-                     size_t size) override = 0;
-  FX_BOOL WriteBlock(const void* buffer, size_t size) override;
-  FX_BOOL Flush() override = 0;
-};
-
-IFX_FileStream* FX_CreateFileStream(const FX_CHAR* filename, uint32_t dwModes);
-IFX_FileStream* FX_CreateFileStream(const FX_WCHAR* filename, uint32_t dwModes);
-
-#ifdef PDF_ENABLE_XFA
-class IFX_FileAccess {
- public:
-  virtual ~IFX_FileAccess() {}
-  virtual void Release() = 0;
-  virtual IFX_FileAccess* Retain() = 0;
-  virtual void GetPath(CFX_WideString& wsPath) = 0;
-  virtual IFX_FileStream* CreateFileStream(uint32_t dwModes) = 0;
-};
-IFX_FileAccess* FX_CreateDefaultFileAccess(const CFX_WideStringC& wsPath);
-#endif  // PDF_ENABLE_XFA
-
-class IFX_MemoryStream : public IFX_FileStream {
- public:
-  virtual FX_BOOL IsConsecutive() const = 0;
-  virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0;
-  virtual uint8_t* GetBuffer() const = 0;
-  virtual void AttachBuffer(uint8_t* pBuffer,
-                            size_t nSize,
-                            FX_BOOL bTakeOver = FALSE) = 0;
-  virtual void DetachBuffer() = 0;
-};
-
-IFX_MemoryStream* FX_CreateMemoryStream(uint8_t* pBuffer,
-                                        size_t nSize,
-                                        FX_BOOL bTakeOver = FALSE);
-IFX_MemoryStream* FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE);
-
-class IFX_BufferRead : public IFX_StreamRead {
- public:
-  // IFX_StreamRead:
-  void Release() override = 0;
-  FX_BOOL IsEOF() override = 0;
-  FX_FILESIZE GetPosition() override = 0;
-  size_t ReadBlock(void* buffer, size_t size) override = 0;
-
-  virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0;
-  virtual const uint8_t* GetBlockBuffer() = 0;
-  virtual size_t GetBlockSize() = 0;
-  virtual FX_FILESIZE GetBlockOffset() = 0;
-};
-
-#endif  // CORE_FXCRT_INCLUDE_FX_STREAM_H_
diff --git a/core/fxcrt/include/fx_string.h b/core/fxcrt/include/fx_string.h
deleted file mode 100644
index 6e9af221ca..0000000000
--- a/core/fxcrt/include/fx_string.h
+++ /dev/null
@@ -1,465 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_STRING_H_
-#define CORE_FXCRT_INCLUDE_FX_STRING_H_
-
-#include <stdint.h>  // For intptr_t.
-
-#include <algorithm>
-#include <functional>
-
-#include "core/fxcrt/cfx_string_c_template.h"
-#include "core/fxcrt/cfx_string_data_template.h"
-#include "core/fxcrt/include/cfx_retain_ptr.h"
-#include "core/fxcrt/include/fx_memory.h"
-#include "core/fxcrt/include/fx_system.h"
-
-class CFX_ByteString;
-class CFX_WideString;
-
-using CFX_ByteStringC = CFX_StringCTemplate<FX_CHAR>;
-using CFX_WideStringC = CFX_StringCTemplate<FX_WCHAR>;
-
-#define FXBSTR_ID(c1, c2, c3, c4)                                      \
-  (((uint32_t)c1 << 24) | ((uint32_t)c2 << 16) | ((uint32_t)c3 << 8) | \
-   ((uint32_t)c4))
-
-#define FX_WSTRC(wstr) CFX_WideStringC(wstr, FX_ArraySize(wstr) - 1)
-
-// A mutable string with shared buffers using copy-on-write semantics that
-// avoids the cost of std::string's iterator stability guarantees.
-class CFX_ByteString {
- public:
-  using CharType = FX_CHAR;
-
-  CFX_ByteString();
-  CFX_ByteString(const CFX_ByteString& other);
-  CFX_ByteString(CFX_ByteString&& other);
-
-  // Deliberately implicit to avoid calling on every string literal.
-  CFX_ByteString(char ch);
-  CFX_ByteString(const FX_CHAR* ptr);
-
-  CFX_ByteString(const FX_CHAR* ptr, FX_STRSIZE len);
-  CFX_ByteString(const uint8_t* ptr, FX_STRSIZE len);
-
-  explicit CFX_ByteString(const CFX_ByteStringC& bstrc);
-  CFX_ByteString(const CFX_ByteStringC& bstrc1, const CFX_ByteStringC& bstrc2);
-
-  ~CFX_ByteString();
-
-  void clear() { m_pData.Reset(); }
-
-  static CFX_ByteString FromUnicode(const FX_WCHAR* ptr, FX_STRSIZE len = -1);
-  static CFX_ByteString FromUnicode(const CFX_WideString& str);
-
-  // Explicit conversion to C-style string.
-  // Note: Any subsequent modification of |this| will invalidate the result.
-  const FX_CHAR* c_str() const { return m_pData ? m_pData->m_String : ""; }
-
-  // Explicit conversion to uint8_t*.
-  // Note: Any subsequent modification of |this| will invalidate the result.
-  const uint8_t* raw_str() const {
-    return m_pData ? reinterpret_cast<const uint8_t*>(m_pData->m_String)
-                   : nullptr;
-  }
-
-  // Explicit conversion to CFX_ByteStringC.
-  // Note: Any subsequent modification of |this| will invalidate the result.
-  CFX_ByteStringC AsStringC() const {
-    return CFX_ByteStringC(raw_str(), GetLength());
-  }
-
-  FX_STRSIZE GetLength() const { return m_pData ? m_pData->m_nDataLength : 0; }
-  bool IsEmpty() const { return !GetLength(); }
-
-  int Compare(const CFX_ByteStringC& str) const;
-  bool EqualNoCase(const CFX_ByteStringC& str) const;
-
-  bool operator==(const char* ptr) const;
-  bool operator==(const CFX_ByteStringC& str) const;
-  bool operator==(const CFX_ByteString& other) const;
-
-  bool operator!=(const char* ptr) const { return !(*this == ptr); }
-  bool operator!=(const CFX_ByteStringC& str) const { return !(*this == str); }
-  bool operator!=(const CFX_ByteString& other) const {
-    return !(*this == other);
-  }
-
-  bool operator<(const CFX_ByteString& str) const;
-
-  const CFX_ByteString& operator=(const FX_CHAR* str);
-  const CFX_ByteString& operator=(const CFX_ByteStringC& bstrc);
-  const CFX_ByteString& operator=(const CFX_ByteString& stringSrc);
-
-  const CFX_ByteString& operator+=(FX_CHAR ch);
-  const CFX_ByteString& operator+=(const FX_CHAR* str);
-  const CFX_ByteString& operator+=(const CFX_ByteString& str);
-  const CFX_ByteString& operator+=(const CFX_ByteStringC& bstrc);
-
-  uint8_t GetAt(FX_STRSIZE nIndex) const {
-    return m_pData ? m_pData->m_String[nIndex] : 0;
-  }
-
-  uint8_t operator[](FX_STRSIZE nIndex) const {
-    return m_pData ? m_pData->m_String[nIndex] : 0;
-  }
-
-  void SetAt(FX_STRSIZE nIndex, FX_CHAR ch);
-  FX_STRSIZE Insert(FX_STRSIZE index, FX_CHAR ch);
-  FX_STRSIZE Delete(FX_STRSIZE index, FX_STRSIZE count = 1);
-
-  void Format(const FX_CHAR* lpszFormat, ...);
-  void FormatV(const FX_CHAR* lpszFormat, va_list argList);
-
-  void Reserve(FX_STRSIZE len);
-  FX_CHAR* GetBuffer(FX_STRSIZE len);
-  void ReleaseBuffer(FX_STRSIZE len = -1);
-
-  CFX_ByteString Mid(FX_STRSIZE first) const;
-  CFX_ByteString Mid(FX_STRSIZE first, FX_STRSIZE count) const;
-  CFX_ByteString Left(FX_STRSIZE count) const;
-  CFX_ByteString Right(FX_STRSIZE count) const;
-
-  FX_STRSIZE Find(const CFX_ByteStringC& lpszSub, FX_STRSIZE start = 0) const;
-  FX_STRSIZE Find(FX_CHAR ch, FX_STRSIZE start = 0) const;
-  FX_STRSIZE ReverseFind(FX_CHAR ch) const;
-
-  void MakeLower();
-  void MakeUpper();
-
-  void TrimRight();
-  void TrimRight(FX_CHAR chTarget);
-  void TrimRight(const CFX_ByteStringC& lpszTargets);
-
-  void TrimLeft();
-  void TrimLeft(FX_CHAR chTarget);
-  void TrimLeft(const CFX_ByteStringC& lpszTargets);
-
-  FX_STRSIZE Replace(const CFX_ByteStringC& lpszOld,
-                     const CFX_ByteStringC& lpszNew);
-
-  FX_STRSIZE Remove(FX_CHAR ch);
-
-  CFX_WideString UTF8Decode() const;
-
-  uint32_t GetID(FX_STRSIZE start_pos = 0) const;
-
-#define FXFORMAT_SIGNED 1
-#define FXFORMAT_HEX 2
-#define FXFORMAT_CAPITAL 4
-
-  static CFX_ByteString FormatInteger(int i, uint32_t flags = 0);
-  static CFX_ByteString FormatFloat(FX_FLOAT f, int precision = 0);
-
- protected:
-  using StringData = CFX_StringDataTemplate<FX_CHAR>;
-
-  void ReallocBeforeWrite(FX_STRSIZE nNewLen);
-  void AllocBeforeWrite(FX_STRSIZE nNewLen);
-  void AllocCopy(CFX_ByteString& dest,
-                 FX_STRSIZE nCopyLen,
-                 FX_STRSIZE nCopyIndex) const;
-  void AssignCopy(const FX_CHAR* pSrcData, FX_STRSIZE nSrcLen);
-  void Concat(const FX_CHAR* lpszSrcData, FX_STRSIZE nSrcLen);
-
-  CFX_RetainPtr<StringData> m_pData;
-
-  friend class fxcrt_ByteStringConcat_Test;
-  friend class fxcrt_ByteStringPool_Test;
-};
-
-inline bool operator==(const char* lhs, const CFX_ByteString& rhs) {
-  return rhs == lhs;
-}
-inline bool operator==(const CFX_ByteStringC& lhs, const CFX_ByteString& rhs) {
-  return rhs == lhs;
-}
-inline bool operator!=(const char* lhs, const CFX_ByteString& rhs) {
-  return rhs != lhs;
-}
-inline bool operator!=(const CFX_ByteStringC& lhs, const CFX_ByteString& rhs) {
-  return rhs != lhs;
-}
-
-inline CFX_ByteString operator+(const CFX_ByteStringC& str1,
-                                const CFX_ByteStringC& str2) {
-  return CFX_ByteString(str1, str2);
-}
-inline CFX_ByteString operator+(const CFX_ByteStringC& str1,
-                                const FX_CHAR* str2) {
-  return CFX_ByteString(str1, str2);
-}
-inline CFX_ByteString operator+(const FX_CHAR* str1,
-                                const CFX_ByteStringC& str2) {
-  return CFX_ByteString(str1, str2);
-}
-inline CFX_ByteString operator+(const CFX_ByteStringC& str1, FX_CHAR ch) {
-  return CFX_ByteString(str1, CFX_ByteStringC(ch));
-}
-inline CFX_ByteString operator+(FX_CHAR ch, const CFX_ByteStringC& str2) {
-  return CFX_ByteString(ch, str2);
-}
-inline CFX_ByteString operator+(const CFX_ByteString& str1,
-                                const CFX_ByteString& str2) {
-  return CFX_ByteString(str1.AsStringC(), str2.AsStringC());
-}
-inline CFX_ByteString operator+(const CFX_ByteString& str1, FX_CHAR ch) {
-  return CFX_ByteString(str1.AsStringC(), CFX_ByteStringC(ch));
-}
-inline CFX_ByteString operator+(FX_CHAR ch, const CFX_ByteString& str2) {
-  return CFX_ByteString(ch, str2.AsStringC());
-}
-inline CFX_ByteString operator+(const CFX_ByteString& str1,
-                                const FX_CHAR* str2) {
-  return CFX_ByteString(str1.AsStringC(), str2);
-}
-inline CFX_ByteString operator+(const FX_CHAR* str1,
-                                const CFX_ByteString& str2) {
-  return CFX_ByteString(str1, str2.AsStringC());
-}
-inline CFX_ByteString operator+(const CFX_ByteString& str1,
-                                const CFX_ByteStringC& str2) {
-  return CFX_ByteString(str1.AsStringC(), str2);
-}
-inline CFX_ByteString operator+(const CFX_ByteStringC& str1,
-                                const CFX_ByteString& str2) {
-  return CFX_ByteString(str1, str2.AsStringC());
-}
-
-// A mutable string with shared buffers using copy-on-write semantics that
-// avoids the cost of std::string's iterator stability guarantees.
-class CFX_WideString {
- public:
-  using CharType = FX_WCHAR;
-
-  CFX_WideString();
-  CFX_WideString(const CFX_WideString& other);
-  CFX_WideString(CFX_WideString&& other);
-
-  // Deliberately implicit to avoid calling on every string literal.
-  CFX_WideString(FX_WCHAR ch);
-  CFX_WideString(const FX_WCHAR* ptr);
-
-  CFX_WideString(const FX_WCHAR* ptr, FX_STRSIZE len);
-
-  explicit CFX_WideString(const CFX_WideStringC& str);
-  CFX_WideString(const CFX_WideStringC& str1, const CFX_WideStringC& str2);
-
-  ~CFX_WideString();
-
-  static CFX_WideString FromLocal(const CFX_ByteStringC& str);
-  static CFX_WideString FromCodePage(const CFX_ByteStringC& str,
-                                     uint16_t codepage);
-
-  static CFX_WideString FromUTF8(const CFX_ByteStringC& str);
-  static CFX_WideString FromUTF16LE(const unsigned short* str, FX_STRSIZE len);
-
-  static FX_STRSIZE WStringLength(const unsigned short* str);
-
-  // Explicit conversion to C-style wide string.
-  // Note: Any subsequent modification of |this| will invalidate the result.
-  const FX_WCHAR* c_str() const { return m_pData ? m_pData->m_String : L""; }
-
-  // Explicit conversion to CFX_WideStringC.
-  // Note: Any subsequent modification of |this| will invalidate the result.
-  CFX_WideStringC AsStringC() const {
-    return CFX_WideStringC(c_str(), GetLength());
-  }
-
-  void clear() { m_pData.Reset(); }
-
-  FX_STRSIZE GetLength() const { return m_pData ? m_pData->m_nDataLength : 0; }
-  bool IsEmpty() const { return !GetLength(); }
-
-  const CFX_WideString& operator=(const FX_WCHAR* str);
-  const CFX_WideString& operator=(const CFX_WideString& stringSrc);
-  const CFX_WideString& operator=(const CFX_WideStringC& stringSrc);
-
-  const CFX_WideString& operator+=(const FX_WCHAR* str);
-  const CFX_WideString& operator+=(FX_WCHAR ch);
-  const CFX_WideString& operator+=(const CFX_WideString& str);
-  const CFX_WideString& operator+=(const CFX_WideStringC& str);
-
-  bool operator==(const wchar_t* ptr) const;
-  bool operator==(const CFX_WideStringC& str) const;
-  bool operator==(const CFX_WideString& other) const;
-
-  bool operator!=(const wchar_t* ptr) const { return !(*this == ptr); }
-  bool operator!=(const CFX_WideStringC& str) const { return !(*this == str); }
-  bool operator!=(const CFX_WideString& other) const {
-    return !(*this == other);
-  }
-
-  bool operator<(const CFX_WideString& str) const;
-
-  FX_WCHAR GetAt(FX_STRSIZE nIndex) const {
-    return m_pData ? m_pData->m_String[nIndex] : 0;
-  }
-
-  FX_WCHAR operator[](FX_STRSIZE nIndex) const {
-    return m_pData ? m_pData->m_String[nIndex] : 0;
-  }
-
-  void SetAt(FX_STRSIZE nIndex, FX_WCHAR ch);
-
-  int Compare(const FX_WCHAR* str) const;
-  int Compare(const CFX_WideString& str) const;
-  int CompareNoCase(const FX_WCHAR* str) const;
-
-
-  CFX_WideString Mid(FX_STRSIZE first) const;
-  CFX_WideString Mid(FX_STRSIZE first, FX_STRSIZE count) const;
-  CFX_WideString Left(FX_STRSIZE count) const;
-  CFX_WideString Right(FX_STRSIZE count) const;
-
-  FX_STRSIZE Insert(FX_STRSIZE index, FX_WCHAR ch);
-  FX_STRSIZE Delete(FX_STRSIZE index, FX_STRSIZE count = 1);
-
-  void Format(const FX_WCHAR* lpszFormat, ...);
-  void FormatV(const FX_WCHAR* lpszFormat, va_list argList);
-
-  void MakeLower();
-  void MakeUpper();
-
-  void TrimRight();
-  void TrimRight(FX_WCHAR chTarget);
-  void TrimRight(const CFX_WideStringC& pTargets);
-
-  void TrimLeft();
-  void TrimLeft(FX_WCHAR chTarget);
-  void TrimLeft(const CFX_WideStringC& pTargets);
-
-  void Reserve(FX_STRSIZE len);
-  FX_WCHAR* GetBuffer(FX_STRSIZE len);
-  void ReleaseBuffer(FX_STRSIZE len = -1);
-
-  int GetInteger() const;
-  FX_FLOAT GetFloat() const;
-
-  FX_STRSIZE Find(const CFX_WideStringC& pSub, FX_STRSIZE start = 0) const;
-  FX_STRSIZE Find(FX_WCHAR ch, FX_STRSIZE start = 0) const;
-  FX_STRSIZE Replace(const CFX_WideStringC& pOld, const CFX_WideStringC& pNew);
-  FX_STRSIZE Remove(FX_WCHAR ch);
-
-  CFX_ByteString UTF8Encode() const;
-  CFX_ByteString UTF16LE_Encode() const;
-
- protected:
-  using StringData = CFX_StringDataTemplate<FX_WCHAR>;
-
-  void ReallocBeforeWrite(FX_STRSIZE nLen);
-  void AllocBeforeWrite(FX_STRSIZE nLen);
-  void AllocCopy(CFX_WideString& dest,
-                 FX_STRSIZE nCopyLen,
-                 FX_STRSIZE nCopyIndex) const;
-  void AssignCopy(const FX_WCHAR* pSrcData, FX_STRSIZE nSrcLen);
-  void Concat(const FX_WCHAR* lpszSrcData, FX_STRSIZE nSrcLen);
-
-  CFX_RetainPtr<StringData> m_pData;
-
-  friend class fxcrt_WideStringConcatInPlace_Test;
-  friend class fxcrt_WideStringPool_Test;
-};
-
-inline CFX_WideString operator+(const CFX_WideStringC& str1,
-                                const CFX_WideStringC& str2) {
-  return CFX_WideString(str1, str2);
-}
-inline CFX_WideString operator+(const CFX_WideStringC& str1,
-                                const FX_WCHAR* str2) {
-  return CFX_WideString(str1, str2);
-}
-inline CFX_WideString operator+(const FX_WCHAR* str1,
-                                const CFX_WideStringC& str2) {
-  return CFX_WideString(str1, str2);
-}
-inline CFX_WideString operator+(const CFX_WideStringC& str1, FX_WCHAR ch) {
-  return CFX_WideString(str1, CFX_WideStringC(ch));
-}
-inline CFX_WideString operator+(FX_WCHAR ch, const CFX_WideStringC& str2) {
-  return CFX_WideString(ch, str2);
-}
-inline CFX_WideString operator+(const CFX_WideString& str1,
-                                const CFX_WideString& str2) {
-  return CFX_WideString(str1.AsStringC(), str2.AsStringC());
-}
-inline CFX_WideString operator+(const CFX_WideString& str1, FX_WCHAR ch) {
-  return CFX_WideString(str1.AsStringC(), CFX_WideStringC(ch));
-}
-inline CFX_WideString operator+(FX_WCHAR ch, const CFX_WideString& str2) {
-  return CFX_WideString(ch, str2.AsStringC());
-}
-inline CFX_WideString operator+(const CFX_WideString& str1,
-                                const FX_WCHAR* str2) {
-  return CFX_WideString(str1.AsStringC(), str2);
-}
-inline CFX_WideString operator+(const FX_WCHAR* str1,
-                                const CFX_WideString& str2) {
-  return CFX_WideString(str1, str2.AsStringC());
-}
-inline CFX_WideString operator+(const CFX_WideString& str1,
-                                const CFX_WideStringC& str2) {
-  return CFX_WideString(str1.AsStringC(), str2);
-}
-inline CFX_WideString operator+(const CFX_WideStringC& str1,
-                                const CFX_WideString& str2) {
-  return CFX_WideString(str1, str2.AsStringC());
-}
-inline bool operator==(const wchar_t* lhs, const CFX_WideString& rhs) {
-  return rhs == lhs;
-}
-inline bool operator==(const CFX_WideStringC& lhs, const CFX_WideString& rhs) {
-  return rhs == lhs;
-}
-inline bool operator!=(const wchar_t* lhs, const CFX_WideString& rhs) {
-  return rhs != lhs;
-}
-inline bool operator!=(const CFX_WideStringC& lhs, const CFX_WideString& rhs) {
-  return rhs != lhs;
-}
-
-CFX_ByteString FX_UTF8Encode(const FX_WCHAR* pwsStr, FX_STRSIZE len);
-inline CFX_ByteString FX_UTF8Encode(const CFX_WideStringC& wsStr) {
-  return FX_UTF8Encode(wsStr.c_str(), wsStr.GetLength());
-}
-inline CFX_ByteString FX_UTF8Encode(const CFX_WideString& wsStr) {
-  return FX_UTF8Encode(wsStr.c_str(), wsStr.GetLength());
-}
-
-FX_FLOAT FX_atof(const CFX_ByteStringC& str);
-inline FX_FLOAT FX_atof(const CFX_WideStringC& wsStr) {
-  return FX_atof(FX_UTF8Encode(wsStr.c_str(), wsStr.GetLength()).c_str());
-}
-bool FX_atonum(const CFX_ByteStringC& str, void* pData);
-FX_STRSIZE FX_ftoa(FX_FLOAT f, FX_CHAR* buf);
-
-uint32_t FX_HashCode_GetA(const CFX_ByteStringC& str, bool bIgnoreCase);
-uint32_t FX_HashCode_GetW(const CFX_WideStringC& str, bool bIgnoreCase);
-
-namespace std {
-
-template <>
-struct hash<CFX_ByteString> {
-  std::size_t operator()(const CFX_ByteString& str) const {
-    return FX_HashCode_GetA(str.AsStringC(), false);
-  }
-};
-
-template <>
-struct hash<CFX_WideString> {
-  std::size_t operator()(const CFX_WideString& str) const {
-    return FX_HashCode_GetW(str.AsStringC(), false);
-  }
-};
-
-}  // namespace std
-
-extern template struct std::hash<CFX_ByteString>;
-extern template struct std::hash<CFX_WideString>;
-
-#endif  // CORE_FXCRT_INCLUDE_FX_STRING_H_
diff --git a/core/fxcrt/include/fx_system.h b/core/fxcrt/include/fx_system.h
deleted file mode 100644
index 0542f33047..0000000000
--- a/core/fxcrt/include/fx_system.h
+++ /dev/null
@@ -1,342 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_SYSTEM_H_
-#define CORE_FXCRT_INCLUDE_FX_SYSTEM_H_
-
-#include <assert.h>
-#include <math.h>
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wchar.h>
-
-// _FX_OS_ values:
-#define _FX_WIN32_DESKTOP_ 1
-#define _FX_WIN64_DESKTOP_ 2
-#define _FX_LINUX_DESKTOP_ 4
-#define _FX_MACOSX_ 7
-#define _FX_ANDROID_ 12
-
-// _FXM_PLATFORM_ values;
-#define _FXM_PLATFORM_WINDOWS_ 1  // _FX_WIN32_DESKTOP_ or _FX_WIN64_DESKTOP_.
-#define _FXM_PLATFORM_LINUX_ 2    // _FX_LINUX_DESKTOP_ always.
-#define _FXM_PLATFORM_APPLE_ 3    // _FX_MACOSX_ always.
-#define _FXM_PLATFORM_ANDROID_ 4  // _FX_ANDROID_ always.
-
-#ifndef _FX_OS_
-#if defined(__ANDROID__)
-#define _FX_OS_ _FX_ANDROID_
-#define _FXM_PLATFORM_ _FXM_PLATFORM_ANDROID_
-#elif defined(_WIN32)
-#define _FX_OS_ _FX_WIN32_DESKTOP_
-#define _FXM_PLATFORM_ _FXM_PLATFORM_WINDOWS_
-#elif defined(_WIN64)
-#define _FX_OS_ _FX_WIN64_DESKTOP_
-#define _FXM_PLATFORM_ _FXM_PLATFORM_WINDOWS_
-#elif defined(__linux__)
-#define _FX_OS_ _FX_LINUX_DESKTOP_
-#define _FXM_PLATFORM_ _FXM_PLATFORM_LINUX_
-#elif defined(__APPLE__)
-#define _FX_OS_ _FX_MACOSX_
-#define _FXM_PLATFORM_ _FXM_PLATFORM_APPLE_
-#endif
-#endif  // _FX_OS_
-
-#if !defined(_FX_OS_) || _FX_OS_ == 0
-#error Sorry, can not figure out target OS. Please specify _FX_OS_ macro.
-#endif
-
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-#include <windows.h>
-#include <sal.h>
-#endif
-
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
-#include <Carbon/Carbon.h>
-#include <libkern/OSAtomic.h>
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-typedef void* FX_POSITION;  // Keep until fxcrt containers gone
-typedef float FX_FLOAT;     // Keep, allow upgrade to doubles.
-typedef double FX_DOUBLE;   // Keep, allow downgrade to floats.
-typedef int FX_BOOL;        // Keep, sadly not always 0 or 1.
-typedef char FX_CHAR;       // Keep, questionable signedness.
-typedef wchar_t FX_WCHAR;   // Keep, maybe bad platform wchars.
-
-#define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
-#define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
-#define IsFloatSmaller(fa, fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb)))
-#define IsFloatEqual(fa, fb) IsFloatZero(fa - fb)
-
-// PDFium string sizes are limited to 2^31-1, and the value is signed to
-// allow -1 as a placeholder for "unknown".
-// TODO(palmer): it should be a |size_t|, or at least unsigned.
-typedef int FX_STRSIZE;
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#ifdef __cplusplus
-static_assert(TRUE == true, "true_needs_to_be_true");
-static_assert(FALSE == false, "false_needs_to_be_false");
-#endif
-
-#ifndef ASSERT
-#ifndef NDEBUG
-#define ASSERT assert
-#else
-#define ASSERT(a)
-#endif
-#endif
-
-#if defined(__clang__) || defined(__GNUC__)
-#define PDFIUM_IMMEDIATE_CRASH() __builtin_trap()
-#else
-#define PDFIUM_IMMEDIATE_CRASH() ((void)(*(volatile char*)0 = 0))
-#endif
-
-// M_PI not universally present on all platforms.
-#define FX_PI 3.1415926535897932384626433832795f
-#define FX_BEZIER 0.5522847498308f
-
-// NOTE: prevent use of the return value from snprintf() since some platforms
-// have different return values (e.g. windows _vsnprintf()), and provide
-// versions that always NUL-terminate.
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ && _MSC_VER < 1900
-void FXSYS_snprintf(char* str,
-                    size_t size,
-                    _Printf_format_string_ const char* fmt,
-                    ...);
-void FXSYS_vsnprintf(char* str, size_t size, const char* fmt, va_list ap);
-#else
-#define FXSYS_snprintf (void) snprintf
-#define FXSYS_vsnprintf (void) vsnprintf
-#endif
-
-#define FXSYS_sprintf DO_NOT_USE_SPRINTF_DIE_DIE_DIE
-#define FXSYS_vsprintf DO_NOT_USE_VSPRINTF_DIE_DIE_DIE
-#define FXSYS_strncmp strncmp
-#define FXSYS_strcmp strcmp
-#define FXSYS_strcpy strcpy
-#define FXSYS_strncpy strncpy
-#define FXSYS_strstr strstr
-#define FXSYS_FILE FILE
-#define FXSYS_fopen fopen
-#define FXSYS_fclose fclose
-#define FXSYS_SEEK_END SEEK_END
-#define FXSYS_SEEK_SET SEEK_SET
-#define FXSYS_fseek fseek
-#define FXSYS_ftell ftell
-#define FXSYS_fread fread
-#define FXSYS_fwrite fwrite
-#define FXSYS_fprintf fprintf
-#define FXSYS_fflush fflush
-
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-#ifdef _NATIVE_WCHAR_T_DEFINED
-#define FXSYS_wfopen(f, m) _wfopen((const wchar_t*)(f), (const wchar_t*)(m))
-#else
-#define FXSYS_wfopen _wfopen
-#endif
-#else
-FXSYS_FILE* FXSYS_wfopen(const FX_WCHAR* filename, const FX_WCHAR* mode);
-#endif  // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-
-#ifdef __cplusplus
-}  // extern "C"
-
-#include "third_party/base/numerics/safe_conversions.h"
-
-#define FXSYS_strlen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(strlen(ptr))
-#define FXSYS_wcslen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(wcslen(ptr))
-
-// Overloaded functions for C++ templates
-inline FX_STRSIZE FXSYS_len(const FX_CHAR* ptr) {
-  return FXSYS_strlen(ptr);
-}
-
-inline FX_STRSIZE FXSYS_len(const FX_WCHAR* ptr) {
-  return FXSYS_wcslen(ptr);
-}
-
-inline int FXSYS_cmp(const FX_CHAR* ptr1, const FX_CHAR* ptr2, size_t len) {
-  return memcmp(ptr1, ptr2, len);
-}
-
-inline int FXSYS_cmp(const FX_WCHAR* ptr1, const FX_WCHAR* ptr2, size_t len) {
-  return wmemcmp(ptr1, ptr2, len);
-}
-
-inline const FX_CHAR* FXSYS_chr(const FX_CHAR* ptr, FX_CHAR ch, size_t len) {
-  return reinterpret_cast<const FX_CHAR*>(memchr(ptr, ch, len));
-}
-
-inline const FX_WCHAR* FXSYS_chr(const FX_WCHAR* ptr, FX_WCHAR ch, size_t len) {
-  return wmemchr(ptr, ch, len);
-}
-
-extern "C" {
-#else
-#define FXSYS_strlen(ptr) ((FX_STRSIZE)strlen(ptr))
-#define FXSYS_wcslen(ptr) ((FX_STRSIZE)wcslen(ptr))
-#endif
-
-#define FXSYS_wcscmp wcscmp
-#define FXSYS_wcsstr wcsstr
-#define FXSYS_wcsncmp wcsncmp
-#define FXSYS_vswprintf vswprintf
-#define FXSYS_mbstowcs mbstowcs
-#define FXSYS_wcstombs wcstombs
-#define FXSYS_memcmp memcmp
-#define FXSYS_memcpy memcpy
-#define FXSYS_memmove memmove
-#define FXSYS_memset memset
-#define FXSYS_qsort qsort
-#define FXSYS_bsearch bsearch
-
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-#define FXSYS_GetACP GetACP
-#define FXSYS_itoa _itoa
-#define FXSYS_strlwr _strlwr
-#define FXSYS_strupr _strupr
-#define FXSYS_stricmp _stricmp
-#ifdef _NATIVE_WCHAR_T_DEFINED
-#define FXSYS_wcsicmp(str1, str2) _wcsicmp((wchar_t*)(str1), (wchar_t*)(str2))
-#define FXSYS_WideCharToMultiByte(p1, p2, p3, p4, p5, p6, p7, p8) \
-  WideCharToMultiByte(p1, p2, (const wchar_t*)(p3), p4, p5, p6, p7, p8)
-#define FXSYS_MultiByteToWideChar(p1, p2, p3, p4, p5, p6) \
-  MultiByteToWideChar(p1, p2, p3, p4, (wchar_t*)(p5), p6)
-#define FXSYS_wcslwr(str) _wcslwr((wchar_t*)(str))
-#define FXSYS_wcsupr(str) _wcsupr((wchar_t*)(str))
-#else
-#define FXSYS_wcsicmp _wcsicmp
-#define FXSYS_WideCharToMultiByte WideCharToMultiByte
-#define FXSYS_MultiByteToWideChar MultiByteToWideChar
-#define FXSYS_wcslwr _wcslwr
-#define FXSYS_wcsupr _wcsupr
-#endif
-#define FXSYS_GetFullPathName GetFullPathName
-#define FXSYS_GetModuleFileName GetModuleFileName
-#else
-int FXSYS_GetACP();
-char* FXSYS_itoa(int value, char* str, int radix);
-int FXSYS_WideCharToMultiByte(uint32_t codepage,
-                              uint32_t dwFlags,
-                              const wchar_t* wstr,
-                              int wlen,
-                              char* buf,
-                              int buflen,
-                              const char* default_str,
-                              int* pUseDefault);
-int FXSYS_MultiByteToWideChar(uint32_t codepage,
-                              uint32_t dwFlags,
-                              const char* bstr,
-                              int blen,
-                              wchar_t* buf,
-                              int buflen);
-uint32_t FXSYS_GetFullPathName(const char* filename,
-                               uint32_t buflen,
-                               char* buf,
-                               char** filepart);
-uint32_t FXSYS_GetModuleFileName(void* hModule, char* buf, uint32_t bufsize);
-char* FXSYS_strlwr(char* str);
-char* FXSYS_strupr(char* str);
-int FXSYS_stricmp(const char*, const char*);
-int FXSYS_wcsicmp(const wchar_t* str1, const wchar_t* str2);
-wchar_t* FXSYS_wcslwr(wchar_t* str);
-wchar_t* FXSYS_wcsupr(wchar_t* str);
-#endif  // _FXM_PLATFORM == _FXM_PLATFORM_WINDOWS_
-
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-#define FXSYS_pow(a, b) (FX_FLOAT) powf(a, b)
-#else
-#define FXSYS_pow(a, b) (FX_FLOAT) pow(a, b)
-#endif
-#define FXSYS_sqrt(a) (FX_FLOAT) sqrt(a)
-#define FXSYS_fabs(a) (FX_FLOAT) fabs(a)
-#define FXSYS_atan2(a, b) (FX_FLOAT) atan2(a, b)
-#define FXSYS_ceil(a) (FX_FLOAT) ceil(a)
-#define FXSYS_floor(a) (FX_FLOAT) floor(a)
-#define FXSYS_cos(a) (FX_FLOAT) cos(a)
-#define FXSYS_acos(a) (FX_FLOAT) acos(a)
-#define FXSYS_sin(a) (FX_FLOAT) sin(a)
-#define FXSYS_log(a) (FX_FLOAT) log(a)
-#define FXSYS_log10(a) (FX_FLOAT) log10(a)
-#define FXSYS_fmod(a, b) (FX_FLOAT) fmod(a, b)
-#define FXSYS_abs abs
-#define FXDWORD_GET_LSBFIRST(p)                                                \
-  ((static_cast<uint32_t>(p[3]) << 24) | (static_cast<uint32_t>(p[2]) << 16) | \
-   (static_cast<uint32_t>(p[1]) << 8) | (static_cast<uint32_t>(p[0])))
-#define FXDWORD_GET_MSBFIRST(p)                                                \
-  ((static_cast<uint32_t>(p[0]) << 24) | (static_cast<uint32_t>(p[1]) << 16) | \
-   (static_cast<uint32_t>(p[2]) << 8) | (static_cast<uint32_t>(p[3])))
-#define FXSYS_HIBYTE(word) ((uint8_t)((word) >> 8))
-#define FXSYS_LOBYTE(word) ((uint8_t)(word))
-#define FXSYS_HIWORD(dword) ((uint16_t)((dword) >> 16))
-#define FXSYS_LOWORD(dword) ((uint16_t)(dword))
-int32_t FXSYS_atoi(const FX_CHAR* str);
-uint32_t FXSYS_atoui(const FX_CHAR* str);
-int32_t FXSYS_wtoi(const FX_WCHAR* str);
-int64_t FXSYS_atoi64(const FX_CHAR* str);
-int64_t FXSYS_wtoi64(const FX_WCHAR* str);
-const FX_CHAR* FXSYS_i64toa(int64_t value, FX_CHAR* str, int radix);
-int FXSYS_round(FX_FLOAT f);
-#define FXSYS_sqrt2(a, b) (FX_FLOAT) FXSYS_sqrt((a) * (a) + (b) * (b))
-#ifdef __cplusplus
-};
-#endif
-
-// To print a size_t value in a portable way:
-//   size_t size;
-//   printf("xyz: %" PRIuS, size);
-// The "u" in the macro corresponds to %u, and S is for "size".
-
-#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
-
-#if (defined(_INTTYPES_H) || defined(_INTTYPES_H_)) && !defined(PRId64)
-#error "inttypes.h has already been included before this header file, but "
-#error "without __STDC_FORMAT_MACROS defined."
-#endif
-
-#if !defined(__STDC_FORMAT_MACROS)
-#define __STDC_FORMAT_MACROS
-#endif
-
-#include <inttypes.h>
-
-#if !defined(PRIuS)
-#define PRIuS "zu"
-#endif
-
-#else  // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
-
-#if !defined(PRIuS)
-#define PRIuS "Iu"
-#endif
-
-#endif  // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
-
-// Prevent a function from ever being inlined, typically because we'd
-// like it to appear in stack traces.
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-#define NEVER_INLINE __declspec(noinline)
-#else  // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-#define NEVER_INLINE __attribute__((__noinline__))
-#endif  // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-
-#endif  // CORE_FXCRT_INCLUDE_FX_SYSTEM_H_
diff --git a/core/fxcrt/include/fx_ucd.h b/core/fxcrt/include/fx_ucd.h
deleted file mode 100644
index eeecd39cbf..0000000000
--- a/core/fxcrt/include/fx_ucd.h
+++ /dev/null
@@ -1,202 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_UCD_H_
-#define CORE_FXCRT_INCLUDE_FX_UCD_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-#define FX_BIDICLASSBITS 6
-#define FX_BIDICLASSBITSMASK (31 << FX_BIDICLASSBITS)
-
-enum FX_BIDICLASS {
-  FX_BIDICLASS_ON = 0,    // Other Neutral
-  FX_BIDICLASS_L = 1,     // Left Letter
-  FX_BIDICLASS_R = 2,     // Right Letter
-  FX_BIDICLASS_AN = 3,    // Arabic Number
-  FX_BIDICLASS_EN = 4,    // European Number
-  FX_BIDICLASS_AL = 5,    // Arabic Letter
-  FX_BIDICLASS_NSM = 6,   // Non-spacing Mark
-  FX_BIDICLASS_CS = 7,    // Common Number Separator
-  FX_BIDICLASS_ES = 8,    // European Separator
-  FX_BIDICLASS_ET = 9,    // European Number Terminator
-  FX_BIDICLASS_BN = 10,   // Boundary Neutral
-  FX_BIDICLASS_S = 11,    // Segment Separator
-  FX_BIDICLASS_WS = 12,   // Whitespace
-  FX_BIDICLASS_B = 13,    // Paragraph Separator
-  FX_BIDICLASS_RLO = 14,  // Right-to-Left Override
-  FX_BIDICLASS_RLE = 15,  // Right-to-Left Embedding
-  FX_BIDICLASS_LRO = 16,  // Left-to-Right Override
-  FX_BIDICLASS_LRE = 17,  // Left-to-Right Embedding
-  FX_BIDICLASS_PDF = 18,  // Pop Directional Format
-  FX_BIDICLASS_N = FX_BIDICLASS_ON,
-};
-
-extern const uint32_t kTextLayoutCodeProperties[];
-extern const size_t kTextLayoutCodePropertiesSize;
-
-extern const uint16_t kFXTextLayoutVerticalMirror[];
-extern const size_t kFXTextLayoutVerticalMirrorSize;
-
-extern const uint16_t kFXTextLayoutBidiMirror[];
-extern const size_t kFXTextLayoutBidiMirrorSize;
-
-uint32_t FX_GetUnicodeProperties(FX_WCHAR wch);
-FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch, FX_BOOL bRTL, FX_BOOL bVertical);
-
-#ifdef PDF_ENABLE_XFA
-enum FX_CHARBREAKPROP {
-  FX_CBP_OP = 0,
-  FX_CBP_CL = 1,
-  FX_CBP_QU = 2,
-  FX_CBP_GL = 3,
-  FX_CBP_NS = 4,
-  FX_CBP_EX = 5,
-  FX_CBP_SY = 6,
-  FX_CBP_IS = 7,
-  FX_CBP_PR = 8,
-  FX_CBP_PO = 9,
-  FX_CBP_NU = 10,
-  FX_CBP_AL = 11,
-  FX_CBP_ID = 12,
-  FX_CBP_IN = 13,
-  FX_CBP_HY = 14,
-  FX_CBP_BA = 15,
-  FX_CBP_BB = 16,
-  FX_CBP_B2 = 17,
-  FX_CBP_ZW = 18,
-  FX_CBP_CM = 19,
-  FX_CBP_WJ = 20,
-  FX_CBP_H2 = 21,
-  FX_CBP_H3 = 22,
-  FX_CBP_JL = 23,
-  FX_CBP_JV = 24,
-  FX_CBP_JT = 25,
-
-  FX_CBP_BK = 26,
-  FX_CBP_CR = 27,
-  FX_CBP_LF = 28,
-  FX_CBP_NL = 29,
-  FX_CBP_SA = 30,
-  FX_CBP_SG = 31,
-  FX_CBP_CB = 32,
-  FX_CBP_XX = 33,
-  FX_CBP_AI = 34,
-  FX_CBP_SP = 35,
-  FX_CBP_TB = 37,
-  FX_CBP_NONE = 36,
-};
-
-#define FX_CHARTYPEBITS 11
-#define FX_CHARTYPEBITSMASK (15 << FX_CHARTYPEBITS)
-enum FX_CHARTYPE {
-  FX_CHARTYPE_Unknown = 0,
-  FX_CHARTYPE_Tab = (1 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_Space = (2 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_Control = (3 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_Combination = (4 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_Numeric = (5 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_Normal = (6 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_ArabicAlef = (7 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_ArabicSpecial = (8 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_ArabicDistortion = (9 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_ArabicNormal = (10 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_ArabicForm = (11 << FX_CHARTYPEBITS),
-  FX_CHARTYPE_Arabic = (12 << FX_CHARTYPEBITS),
-};
-inline FX_CHARTYPE GetCharTypeFromProp(uint32_t prop) {
-  return static_cast<FX_CHARTYPE>(prop & FX_CHARTYPEBITSMASK);
-}
-
-FX_BOOL FX_IsCtrlCode(FX_WCHAR ch);
-FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch,
-                          uint32_t dwProps,
-                          FX_BOOL bRTL,
-                          FX_BOOL bVertical);
-class CFX_Char {
- public:
-  CFX_Char()
-      : m_wCharCode(0),
-        m_nBreakType(0),
-        m_nRotation(0),
-        m_dwCharProps(0),
-        m_dwCharStyles(0),
-        m_iCharWidth(0),
-        m_iHorizontalScale(100),
-        m_iVertialScale(100) {}
-  CFX_Char(uint16_t wCharCode, uint32_t dwCharProps)
-      : m_wCharCode(wCharCode),
-        m_nBreakType(0),
-        m_nRotation(0),
-        m_dwCharProps(dwCharProps),
-        m_dwCharStyles(0),
-        m_iCharWidth(0),
-        m_iHorizontalScale(100),
-        m_iVertialScale(100) {}
-
-  FX_CHARTYPE GetCharType() const { return GetCharTypeFromProp(m_dwCharProps); }
-
-  uint16_t m_wCharCode;
-  uint8_t m_nBreakType;
-  int8_t m_nRotation;
-  uint32_t m_dwCharProps;
-  uint32_t m_dwCharStyles;
-  int32_t m_iCharWidth;
-  int32_t m_iHorizontalScale;
-  int32_t m_iVertialScale;
-};
-typedef CFX_ArrayTemplate<CFX_Char> CFX_CharArray;
-class CFX_TxtChar : public CFX_Char {
- public:
-  CFX_TxtChar()
-      : m_dwStatus(0),
-        m_iBidiClass(0),
-        m_iBidiLevel(0),
-        m_iBidiPos(0),
-        m_iBidiOrder(0),
-        m_pUserData(nullptr) {}
-  uint32_t m_dwStatus;
-  int16_t m_iBidiClass;
-  int16_t m_iBidiLevel;
-  int16_t m_iBidiPos;
-  int16_t m_iBidiOrder;
-  void* m_pUserData;
-};
-typedef CFX_ArrayTemplate<CFX_TxtChar> CFX_TxtCharArray;
-class CFX_RTFChar : public CFX_Char {
- public:
-  CFX_RTFChar();
-  CFX_RTFChar(const CFX_RTFChar& other);
-
-  uint32_t m_dwStatus;
-  int32_t m_iFontSize;
-  int32_t m_iFontHeight;
-  int16_t m_iBidiClass;
-  int16_t m_iBidiLevel;
-  int16_t m_iBidiPos;
-  int16_t m_iBidiOrder;
-  uint32_t m_dwLayoutStyles;
-  uint32_t m_dwIdentity;
-  IFX_Retainable* m_pUserData;
-};
-
-inline CFX_RTFChar::CFX_RTFChar()
-    : m_dwStatus(0),
-      m_iFontSize(0),
-      m_iFontHeight(0),
-      m_iBidiClass(0),
-      m_iBidiLevel(0),
-      m_iBidiPos(0),
-      m_dwLayoutStyles(0),
-      m_dwIdentity(0),
-      m_pUserData(nullptr) {}
-
-inline CFX_RTFChar::CFX_RTFChar(const CFX_RTFChar& other) = default;
-
-typedef CFX_ArrayTemplate<CFX_RTFChar> CFX_RTFCharArray;
-#endif  // PDF_ENABLE_XFA
-
-#endif  // CORE_FXCRT_INCLUDE_FX_UCD_H_
diff --git a/core/fxcrt/include/fx_xml.h b/core/fxcrt/include/fx_xml.h
deleted file mode 100644
index 4db4998c32..0000000000
--- a/core/fxcrt/include/fx_xml.h
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_XML_H_
-#define CORE_FXCRT_INCLUDE_FX_XML_H_
-
-#include <memory>
-#include <vector>
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CXML_AttrItem {
- public:
-  bool Matches(const CFX_ByteString& space, const CFX_ByteString& name) const;
-
-  CFX_ByteString m_QSpaceName;
-  CFX_ByteString m_AttrName;
-  CFX_WideString m_Value;
-};
-
-class CXML_AttrMap {
- public:
-  CXML_AttrMap();
-  ~CXML_AttrMap();
-
-  const CFX_WideString* Lookup(const CFX_ByteString& space,
-                               const CFX_ByteString& name) const;
-  int GetSize() const;
-  CXML_AttrItem& GetAt(int index) const;
-
-  void SetAt(const CFX_ByteString& space,
-             const CFX_ByteString& name,
-             const CFX_WideString& value);
-
-  std::unique_ptr<std::vector<CXML_AttrItem>> m_pMap;
-};
-
-class CXML_Content {
- public:
-  CXML_Content() : m_bCDATA(FALSE), m_Content() {}
-  void Set(FX_BOOL bCDATA, const CFX_WideStringC& content) {
-    m_bCDATA = bCDATA;
-    m_Content = content;
-  }
-
-  FX_BOOL m_bCDATA;
-  CFX_WideString m_Content;
-};
-
-class CXML_Element {
- public:
-  enum ChildType { Invalid, Element, Content };
-
-  static CXML_Element* Parse(const void* pBuffer,
-                             size_t size,
-                             FX_BOOL bSaveSpaceChars = FALSE,
-                             FX_FILESIZE* pParsedSize = nullptr);
-  static CXML_Element* Parse(IFX_FileRead* pFile,
-                             FX_BOOL bSaveSpaceChars = FALSE,
-                             FX_FILESIZE* pParsedSize = nullptr);
-  static CXML_Element* Parse(IFX_BufferRead* pBuffer,
-                             FX_BOOL bSaveSpaceChars = FALSE,
-                             FX_FILESIZE* pParsedSize = nullptr);
-
-  CXML_Element(const CFX_ByteStringC& qSpace, const CFX_ByteStringC& tagName);
-  CXML_Element(const CFX_ByteStringC& qTagName);
-  CXML_Element();
-  ~CXML_Element();
-
-  void Empty();
-  CFX_ByteString GetTagName(FX_BOOL bQualified = FALSE) const;
-  CFX_ByteString GetNamespace(FX_BOOL bQualified = FALSE) const;
-  CFX_ByteString GetNamespaceURI(const CFX_ByteString& qName) const;
-  CXML_Element* GetParent() const { return m_pParent; }
-  uint32_t CountAttrs() const { return m_AttrMap.GetSize(); }
-  void GetAttrByIndex(int index,
-                      CFX_ByteString& space,
-                      CFX_ByteString& name,
-                      CFX_WideString& value) const;
-  FX_BOOL HasAttr(const CFX_ByteStringC& qName) const;
-  FX_BOOL GetAttrValue(const CFX_ByteStringC& name,
-                       CFX_WideString& attribute) const;
-  CFX_WideString GetAttrValue(const CFX_ByteStringC& name) const {
-    CFX_WideString attr;
-    GetAttrValue(name, attr);
-    return attr;
-  }
-
-  FX_BOOL GetAttrValue(const CFX_ByteStringC& space,
-                       const CFX_ByteStringC& name,
-                       CFX_WideString& attribute) const;
-  CFX_WideString GetAttrValue(const CFX_ByteStringC& space,
-                              const CFX_ByteStringC& name) const {
-    CFX_WideString attr;
-    GetAttrValue(space, name, attr);
-    return attr;
-  }
-
-  FX_BOOL GetAttrInteger(const CFX_ByteStringC& name, int& attribute) const;
-  int GetAttrInteger(const CFX_ByteStringC& name) const {
-    int attr = 0;
-    GetAttrInteger(name, attr);
-    return attr;
-  }
-
-  FX_BOOL GetAttrInteger(const CFX_ByteStringC& space,
-                         const CFX_ByteStringC& name,
-                         int& attribute) const;
-  int GetAttrInteger(const CFX_ByteStringC& space,
-                     const CFX_ByteStringC& name) const {
-    int attr = 0;
-    GetAttrInteger(space, name, attr);
-    return attr;
-  }
-
-  FX_BOOL GetAttrFloat(const CFX_ByteStringC& name, FX_FLOAT& attribute) const;
-  FX_FLOAT GetAttrFloat(const CFX_ByteStringC& name) const {
-    FX_FLOAT attr = 0;
-    GetAttrFloat(name, attr);
-    return attr;
-  }
-
-  FX_BOOL GetAttrFloat(const CFX_ByteStringC& space,
-                       const CFX_ByteStringC& name,
-                       FX_FLOAT& attribute) const;
-  FX_FLOAT GetAttrFloat(const CFX_ByteStringC& space,
-                        const CFX_ByteStringC& name) const {
-    FX_FLOAT attr = 0;
-    GetAttrFloat(space, name, attr);
-    return attr;
-  }
-
-  uint32_t CountChildren() const { return m_Children.size(); }
-  ChildType GetChildType(uint32_t index) const;
-  CFX_WideString GetContent(uint32_t index) const;
-  CXML_Element* GetElement(uint32_t index) const;
-  CXML_Element* GetElement(const CFX_ByteStringC& space,
-                           const CFX_ByteStringC& tag) const {
-    return GetElement(space, tag, 0);
-  }
-
-  uint32_t CountElements(const CFX_ByteStringC& space,
-                         const CFX_ByteStringC& tag) const;
-  CXML_Element* GetElement(const CFX_ByteStringC& space,
-                           const CFX_ByteStringC& tag,
-                           int index) const;
-
-  uint32_t FindElement(CXML_Element* pChild) const;
-  void SetTag(const CFX_ByteStringC& qSpace, const CFX_ByteStringC& tagname);
-  void SetTag(const CFX_ByteStringC& qTagName);
-  void RemoveChildren();
-  void RemoveChild(uint32_t index);
-
- protected:
-  struct ChildRecord {
-    ChildType type;
-    void* child;  // CXML_Element and CXML_Content lack a common ancestor.
-  };
-
-  CXML_Element* m_pParent;
-  CFX_ByteString m_QSpaceName;
-  CFX_ByteString m_TagName;
-  CXML_AttrMap m_AttrMap;
-  std::vector<ChildRecord> m_Children;
-
-  friend class CXML_Parser;
-  friend class CXML_Composer;
-};
-
-#endif  // CORE_FXCRT_INCLUDE_FX_XML_H_