Cleanup the xfa/src/fgas directory.

This CL moves the code from xfa/src/fgas/src up one level. It then takes the
headers in xfa/src/fgas/include and moves them to their correct folder. The
src/ and include/ directories are then removed.

In some cases, when moving from include/ there was another header with the
same name. Those headers were either folded together, or the content of the
conflicting folder moved to an anonymous namespace in the cpp file as they were
not used anywhere else.

Files with duplicate names as core/src/crt were renamed to be fgas_ instead of
fx_. (e.g. fgas_system.h, fgas_memory.h, fgas_stream.h)

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1776303002 .

1 files changed, 59 insertions, 0 deletions

diff --git a/xfa/src/fgas/crt/fgas_memory.h b/xfa/src/fgas/crt/fgas_memory.h
new file mode 100644
index 0000000000..90a8ddaf9a
--- /dev/null
+++ b/xfa/src/fgas/crt/fgas_memory.h
@@ -0,0 +1,59 @@
+// 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 XFA_SRC_FGAS_CRT_FGAS_MEMORY_H_
+#define XFA_SRC_FGAS_CRT_FGAS_MEMORY_H_
+
+#include "core/include/fxcrt/fx_memory.h"
+#include "core/include/fxcrt/fx_system.h"
+
+class IFX_MEMAllocator;
+class CFX_Target;
+enum FX_ALLOCTYPE {
+  FX_ALLOCTYPE_Default = 0,
+  FX_ALLOCTYPE_Static,
+  FX_ALLOCTYPE_Fixed,
+  FX_ALLOCTYPE_Dynamic,
+};
+
+class IFX_MEMAllocator {
+ public:
+  virtual ~IFX_MEMAllocator() {}
+  virtual void Release() = 0;
+  virtual void* Alloc(size_t size) = 0;
+  virtual void Free(void* pBlock) = 0;
+  virtual size_t GetBlockSize() const = 0;
+  virtual size_t GetDefChunkSize() const = 0;
+  virtual size_t SetDefChunkSize(size_t size) = 0;
+  virtual size_t GetCurrentDataSize() const = 0;
+};
+
+IFX_MEMAllocator* FX_CreateAllocator(FX_ALLOCTYPE eType,
+                                     size_t chunkSize,
+                                     size_t blockSize);
+class CFX_Target {
+ public:
+  virtual ~CFX_Target() {}
+  void* operator new(size_t size) { return FX_Alloc(uint8_t, size); }
+  void operator delete(void* p) { FX_Free(p); }
+  void* operator new(size_t size, IFX_MEMAllocator* pAllocator) {
+    return pAllocator->Alloc(size);
+  }
+  void operator delete(void* p, IFX_MEMAllocator* pAllocator) {
+    pAllocator->Free(p);
+  }
+  void* operator new(size_t size, void* place) { return place; }
+  void operator delete(void* p, void* place) {}
+};
+
+#define FXTARGET_NewWith(__allocator__) new (__allocator__)
+#define FXTARGET_DeleteWith(__class__, __allocator__, pointer) \
+  {                                                            \
+    (pointer)->~__class__();                                   \
+    (pointer)->operator delete((pointer), (__allocator__));    \
+  }
+
+#endif  // XFA_SRC_FGAS_CRT_FGAS_MEMORY_H_