Add some calls to MakeUnique

This CL replaces some new's with pdfium::MakeUnique.

Change-Id: I50faf3ed55e7730b094c14a7989a9dd51cf33cbb
Reviewed-on: https://pdfium-review.googlesource.com/3430
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

21 files changed, 150 insertions, 128 deletions

diff --git a/core/fpdfapi/font/cpdf_type3font.cpp b/core/fpdfapi/font/cpdf_type3font.cpp
index b9a05a0588..59702aed6a 100644
--- a/core/fpdfapi/font/cpdf_type3font.cpp
+++ b/core/fpdfapi/font/cpdf_type3font.cpp
@@ -105,9 +105,9 @@ CPDF_Type3Char* CPDF_Type3Font::LoadChar(uint32_t charcode) {
   if (!pStream)
     return nullptr;
 
-  std::unique_ptr<CPDF_Type3Char> pNewChar(new CPDF_Type3Char(new CPDF_Form(
+  auto pNewChar = pdfium::MakeUnique<CPDF_Type3Char>(new CPDF_Form(
       m_pDocument, m_pFontResources ? m_pFontResources : m_pPageResources,
-      pStream, nullptr)));
+      pStream, nullptr));
 
   // This can trigger recursion into this method. The content of |m_CacheMap|
   // can change as a result. Thus after it returns, check the cache again for
diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.cpp b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
index 312996ba11..4c64e13b06 100644
--- a/core/fpdfapi/page/cpdf_streamcontentparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
@@ -262,7 +262,7 @@ CPDF_StreamContentParser::CPDF_StreamContentParser(
       m_Level(level),
       m_ParamStartPos(0),
       m_ParamCount(0),
-      m_pCurStates(new CPDF_AllStates),
+      m_pCurStates(pdfium::MakeUnique<CPDF_AllStates>()),
       m_pLastTextObject(nullptr),
       m_DefFontSize(0),
       m_PathStartX(0.0f),
@@ -765,9 +765,9 @@ void CPDF_StreamContentParser::Handle_ExecuteXObject() {
 }
 
 void CPDF_StreamContentParser::AddForm(CPDF_Stream* pStream) {
-  std::unique_ptr<CPDF_FormObject> pFormObj(new CPDF_FormObject);
-  pFormObj->m_pForm.reset(
-      new CPDF_Form(m_pDocument, m_pPageResources, pStream, m_pResources));
+  auto pFormObj = pdfium::MakeUnique<CPDF_FormObject>();
+  pFormObj->m_pForm = pdfium::MakeUnique<CPDF_Form>(
+      m_pDocument, m_pPageResources, pStream, m_pResources);
   pFormObj->m_FormMatrix = m_pCurStates->m_CTM;
   pFormObj->m_FormMatrix.Concat(m_mtContentToUser);
   CPDF_AllStates status;
@@ -957,7 +957,7 @@ void CPDF_StreamContentParser::Handle_EndPath() {
 }
 
 void CPDF_StreamContentParser::Handle_SaveGraphState() {
-  std::unique_ptr<CPDF_AllStates> pStates(new CPDF_AllStates);
+  auto pStates = pdfium::MakeUnique<CPDF_AllStates>();
   pStates->Copy(*m_pCurStates);
   m_StateStack.push_back(std::move(pStates));
 }
@@ -1110,7 +1110,7 @@ void CPDF_StreamContentParser::Handle_ShadeFill() {
   if (!pShading->IsShadingObject() || !pShading->Load())
     return;
 
-  std::unique_ptr<CPDF_ShadingObject> pObj(new CPDF_ShadingObject);
+  auto pObj = pdfium::MakeUnique<CPDF_ShadingObject>();
   pObj->m_pShading = pShading;
   SetGraphicStates(pObj.get(), false, false, false);
   pObj->m_Matrix = m_pCurStates->m_CTM;
@@ -1248,7 +1248,7 @@ void CPDF_StreamContentParser::AddTextObject(CFX_ByteString* pStrs,
       pFont->IsType3Font() ? TextRenderingMode::MODE_FILL
                            : m_pCurStates->m_TextState.GetTextMode();
   {
-    std::unique_ptr<CPDF_TextObject> pText(new CPDF_TextObject);
+    auto pText = pdfium::MakeUnique<CPDF_TextObject>();
     m_pLastTextObject = pText.get();
     SetGraphicStates(m_pLastTextObject, true, true, true);
     if (TextRenderingModeIsStrokeMode(text_mode)) {
diff --git a/core/fpdfapi/parser/cpdf_array_unittest.cpp b/core/fpdfapi/parser/cpdf_array_unittest.cpp
index 6d458d83cd..1e92b32716 100644
--- a/core/fpdfapi/parser/cpdf_array_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_array_unittest.cpp
@@ -15,7 +15,7 @@
 TEST(cpdf_array, RemoveAt) {
   {
     int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
-    std::unique_ptr<CPDF_Array> arr(new CPDF_Array);
+    auto arr = pdfium::MakeUnique<CPDF_Array>();
     for (size_t i = 0; i < FX_ArraySize(elems); ++i)
       arr->AddNew<CPDF_Number>(elems[i]);
     arr->RemoveAt(3, 3);
@@ -32,7 +32,7 @@ TEST(cpdf_array, RemoveAt) {
   {
     // When the range is out of bound, RemoveAt has no effect.
     int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
-    std::unique_ptr<CPDF_Array> arr(new CPDF_Array);
+    auto arr = pdfium::MakeUnique<CPDF_Array>();
     for (size_t i = 0; i < FX_ArraySize(elems); ++i)
       arr->AddNew<CPDF_Number>(elems[i]);
     arr->RemoveAt(8, 5);
@@ -102,14 +102,13 @@ TEST(cpdf_array, Clone) {
     static const size_t kNumOfRowElems = 5;
     int elems[kNumOfRows][kNumOfRowElems] = {
         {1, 2, 3, 4, 5}, {10, 9, 8, 7, 6}, {11, 12, 13, 14, 15}};
-    std::unique_ptr<CPDF_Array> arr(new CPDF_Array);
+    auto arr = pdfium::MakeUnique<CPDF_Array>();
     // Indirect references to indirect objects.
-    std::unique_ptr<CPDF_IndirectObjectHolder> obj_holder(
-        new CPDF_IndirectObjectHolder());
+    auto obj_holder = pdfium::MakeUnique<CPDF_IndirectObjectHolder>();
     for (size_t i = 0; i < kNumOfRows; ++i) {
       auto arr_elem = pdfium::MakeUnique<CPDF_Array>();
       for (size_t j = 0; j < kNumOfRowElems; ++j) {
-        std::unique_ptr<CPDF_Number> obj(new CPDF_Number(elems[i][j]));
+        auto obj = pdfium::MakeUnique<CPDF_Number>(elems[i][j]);
         // Starts object number from 1.
         int obj_num = i * kNumOfRowElems + j + 1;
         obj_holder->ReplaceIndirectObjectIfHigherGeneration(obj_num,
@@ -168,7 +167,7 @@ TEST(cpdf_array, Clone) {
 TEST(cpdf_array, Iterator) {
   const int elems[] = {-23, -11,     3,         455,   2345877,
                        0,   7895330, -12564334, 10000, -100000};
-  std::unique_ptr<CPDF_Array> arr(new CPDF_Array);
+  auto arr = pdfium::MakeUnique<CPDF_Array>();
   for (size_t i = 0; i < FX_ArraySize(elems); ++i)
     arr->InsertNewAt<CPDF_Number>(i, elems[i]);
   size_t index = 0;
diff --git a/core/fpdfapi/parser/cpdf_object_unittest.cpp b/core/fpdfapi/parser/cpdf_object_unittest.cpp
index b25d40a029..3b5374b637 100644
--- a/core/fpdfapi/parser/cpdf_object_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_object_unittest.cpp
@@ -484,8 +484,8 @@ TEST(PDFArrayTest, GetTypeAt) {
     // String and name array
     const char* const vals[] = {"this", "adsde$%^", "\r\t",           "\"012",
                                 ".",    "EYREW",    "It is a joke :)"};
-    std::unique_ptr<CPDF_Array> string_array(new CPDF_Array);
-    std::unique_ptr<CPDF_Array> name_array(new CPDF_Array);
+    auto string_array = pdfium::MakeUnique<CPDF_Array>();
+    auto name_array = pdfium::MakeUnique<CPDF_Array>();
     for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
       string_array->InsertNewAt<CPDF_String>(i, vals[i], false);
       name_array->InsertNewAt<CPDF_Name>(i, vals[i]);
@@ -695,8 +695,8 @@ TEST(PDFArrayTest, AddInteger) {
 TEST(PDFArrayTest, AddStringAndName) {
   const char* vals[] = {"",        "a", "ehjhRIOYTTFdfcdnv",  "122323",
                         "$#%^&**", " ", "This is a test.\r\n"};
-  std::unique_ptr<CPDF_Array> string_array(new CPDF_Array);
-  std::unique_ptr<CPDF_Array> name_array(new CPDF_Array);
+  auto string_array = pdfium::MakeUnique<CPDF_Array>();
+  auto name_array = pdfium::MakeUnique<CPDF_Array>();
   for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
     string_array->AddNew<CPDF_String>(vals[i], false);
     name_array->AddNew<CPDF_Name>(vals[i]);
@@ -710,8 +710,7 @@ TEST(PDFArrayTest, AddStringAndName) {
 }
 
 TEST(PDFArrayTest, AddReferenceAndGetObjectAt) {
-  std::unique_ptr<CPDF_IndirectObjectHolder> holder(
-      new CPDF_IndirectObjectHolder());
+  auto holder = pdfium::MakeUnique<CPDF_IndirectObjectHolder>();
   CPDF_Boolean* boolean_obj = new CPDF_Boolean(true);
   CPDF_Number* int_obj = new CPDF_Number(-1234);
   CPDF_Number* float_obj = new CPDF_Number(2345.089f);
@@ -723,7 +722,7 @@ TEST(PDFArrayTest, AddReferenceAndGetObjectAt) {
                                   str_obj,     name_obj, null_obj};
   unsigned int obj_nums[] = {2, 4, 7, 2345, 799887, 1};
   auto arr = pdfium::MakeUnique<CPDF_Array>();
-  std::unique_ptr<CPDF_Array> arr1(new CPDF_Array);
+  auto arr1 = pdfium::MakeUnique<CPDF_Array>();
   // Create two arrays of references by different AddReference() APIs.
   for (size_t i = 0; i < FX_ArraySize(indirect_objs); ++i) {
     holder->ReplaceIndirectObjectIfHigherGeneration(
@@ -748,7 +747,7 @@ TEST(PDFArrayTest, AddReferenceAndGetObjectAt) {
 
 TEST(PDFArrayTest, CloneDirectObject) {
   CPDF_IndirectObjectHolder objects_holder;
-  std::unique_ptr<CPDF_Array> array(new CPDF_Array);
+  auto array = pdfium::MakeUnique<CPDF_Array>();
   array->AddNew<CPDF_Reference>(&objects_holder, 1234);
   ASSERT_EQ(1U, array->GetCount());
   CPDF_Object* obj = array->GetObjectAt(0);
@@ -782,7 +781,7 @@ TEST(PDFArrayTest, ConvertIndirect) {
 
 TEST(PDFDictionaryTest, CloneDirectObject) {
   CPDF_IndirectObjectHolder objects_holder;
-  std::unique_ptr<CPDF_Dictionary> dict(new CPDF_Dictionary());
+  auto dict = pdfium::MakeUnique<CPDF_Dictionary>();
   dict->SetNewFor<CPDF_Reference>("foo", &objects_holder, 1234);
   ASSERT_EQ(1U, dict->GetCount());
   CPDF_Object* obj = dict->GetObjectFor("foo");
@@ -867,7 +866,7 @@ TEST(PDFObjectTest, CloneCheckLoop) {
 
 TEST(PDFDictionaryTest, ConvertIndirect) {
   CPDF_IndirectObjectHolder objects_holder;
-  std::unique_ptr<CPDF_Dictionary> dict(new CPDF_Dictionary);
+  auto dict = pdfium::MakeUnique<CPDF_Dictionary>();
   CPDF_Object* pObj = dict->SetNewFor<CPDF_Number>("clams", 42);
   dict->ConvertToIndirectObjectFor("clams", &objects_holder);
   CPDF_Object* pRef = dict->GetObjectFor("clams");
diff --git a/core/fpdfapi/render/cpdf_dibsource.cpp b/core/fpdfapi/render/cpdf_dibsource.cpp
index f3703dd23a..cb8e9c9eee 100644
--- a/core/fpdfapi/render/cpdf_dibsource.cpp
+++ b/core/fpdfapi/render/cpdf_dibsource.cpp
@@ -21,6 +21,7 @@
 #include "core/fpdfapi/parser/fpdf_parser_decode.h"
 #include "core/fpdfapi/render/cpdf_pagerendercache.h"
 #include "core/fpdfapi/render/cpdf_renderstatus.h"
+#include "core/fxcodec/codec/cjpx_decoder.h"
 #include "core/fxcodec/fx_codec.h"
 #include "core/fxcrt/fx_safe_types.h"
 #include "third_party/base/ptr_util.h"
@@ -79,16 +80,17 @@ class JpxBitMapContext {
   explicit JpxBitMapContext(CCodec_JpxModule* jpx_module)
       : jpx_module_(jpx_module), decoder_(nullptr) {}
 
-  ~JpxBitMapContext() { jpx_module_->DestroyDecoder(decoder_); }
+  ~JpxBitMapContext() {}
 
-  // Takes ownership of |decoder|.
-  void set_decoder(CJPX_Decoder* decoder) { decoder_ = decoder; }
+  void set_decoder(std::unique_ptr<CJPX_Decoder> decoder) {
+    decoder_ = std::move(decoder);
+  }
 
-  CJPX_Decoder* decoder() { return decoder_; }
+  CJPX_Decoder* decoder() { return decoder_.get(); }
 
  private:
   CCodec_JpxModule* const jpx_module_;  // Weak pointer.
-  CJPX_Decoder* decoder_;               // Decoder, owned.
+  std::unique_ptr<CJPX_Decoder> decoder_;
 
   // Disallow evil constructors
   JpxBitMapContext(const JpxBitMapContext&);
@@ -613,7 +615,7 @@ void CPDF_DIBSource::LoadJpxBitmap() {
   if (!pJpxModule)
     return;
 
-  std::unique_ptr<JpxBitMapContext> context(new JpxBitMapContext(pJpxModule));
+  auto context = pdfium::MakeUnique<JpxBitMapContext>(pJpxModule);
   context->set_decoder(pJpxModule->CreateDecoder(
       m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(), m_pColorSpace));
   if (!context->decoder())
diff --git a/core/fpdfdoc/cpdf_filespec_unittest.cpp b/core/fpdfdoc/cpdf_filespec_unittest.cpp
index d164165f00..e237aa5b6b 100644
--- a/core/fpdfdoc/cpdf_filespec_unittest.cpp
+++ b/core/fpdfdoc/cpdf_filespec_unittest.cpp
@@ -11,6 +11,7 @@
 #include "core/fpdfdoc/cpdf_filespec.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/test_support.h"
+#include "third_party/base/ptr_util.h"
 
 TEST(cpdf_filespec, EncodeDecodeFileName) {
   std::vector<pdfium::NullTermWstrFuncTestData> test_data = {
@@ -67,8 +68,7 @@ TEST(cpdf_filespec, GetFileName) {
       L"/docs/test.pdf"
 #endif
     };
-    std::unique_ptr<CPDF_Object> str_obj(
-        new CPDF_String(nullptr, test_data.input));
+    auto str_obj = pdfium::MakeUnique<CPDF_String>(nullptr, test_data.input);
     CPDF_FileSpec file_spec(str_obj.get());
     CFX_WideString file_name;
     EXPECT_TRUE(file_spec.GetFileName(&file_name));
@@ -99,7 +99,7 @@ TEST(cpdf_filespec, GetFileName) {
     };
     // Keyword fields in reverse order of precedence to retrieve the file name.
     const char* const keywords[5] = {"Unix", "Mac", "DOS", "F", "UF"};
-    std::unique_ptr<CPDF_Dictionary> dict_obj(new CPDF_Dictionary());
+    auto dict_obj = pdfium::MakeUnique<CPDF_Dictionary>();
     CPDF_FileSpec file_spec(dict_obj.get());
     CFX_WideString file_name;
     for (int i = 0; i < 5; ++i) {
@@ -116,7 +116,7 @@ TEST(cpdf_filespec, GetFileName) {
   }
   {
     // Invalid object.
-    std::unique_ptr<CPDF_Object> name_obj(new CPDF_Name(nullptr, "test.pdf"));
+    auto name_obj = pdfium::MakeUnique<CPDF_Name>(nullptr, "test.pdf");
     CPDF_FileSpec file_spec(name_obj.get());
     CFX_WideString file_name;
     EXPECT_FALSE(file_spec.GetFileName(&file_name));
@@ -137,7 +137,7 @@ TEST(cpdf_filespec, SetFileName) {
 #endif
   };
   // String object.
-  std::unique_ptr<CPDF_Object> str_obj(new CPDF_String(nullptr, L"babababa"));
+  auto str_obj = pdfium::MakeUnique<CPDF_String>(nullptr, L"babababa");
   CPDF_FileSpec file_spec1(str_obj.get());
   file_spec1.SetFileName(test_data.input);
   // Check internal object value.
@@ -149,7 +149,7 @@ TEST(cpdf_filespec, SetFileName) {
   EXPECT_TRUE(file_name == test_data.input);
 
   // Dictionary object.
-  std::unique_ptr<CPDF_Dictionary> dict_obj(new CPDF_Dictionary());
+  auto dict_obj = pdfium::MakeUnique<CPDF_Dictionary>();
   CPDF_FileSpec file_spec2(dict_obj.get());
   file_spec2.SetFileName(test_data.input);
   // Check internal object value.
diff --git a/core/fpdfdoc/cpdf_formfield.cpp b/core/fpdfdoc/cpdf_formfield.cpp
index c697cbbf16..e7ca7c6a8d 100644
--- a/core/fpdfdoc/cpdf_formfield.cpp
+++ b/core/fpdfdoc/cpdf_formfield.cpp
@@ -566,7 +566,7 @@ bool CPDF_FormField::SetItemSelection(int index, bool bSelected, bool bNotify) {
           if (pValue->GetUnicodeText() == opt_value)
             m_pDict->RemoveFor("V");
         } else if (pValue->IsArray()) {
-          std::unique_ptr<CPDF_Array> pArray(new CPDF_Array);
+          auto pArray = pdfium::MakeUnique<CPDF_Array>();
           for (int i = 0; i < CountOptions(); i++) {
             if (i != index && IsItemSelected(i)) {
               opt_value = GetOptionValue(i);
diff --git a/core/fxcodec/codec/ccodec_jpxmodule.h b/core/fxcodec/codec/ccodec_jpxmodule.h
index fd919d91b0..c57002722e 100644
--- a/core/fxcodec/codec/ccodec_jpxmodule.h
+++ b/core/fxcodec/codec/ccodec_jpxmodule.h
@@ -7,6 +7,7 @@
 #ifndef CORE_FXCODEC_CODEC_CCODEC_JPXMODULE_H_
 #define CORE_FXCODEC_CODEC_CCODEC_JPXMODULE_H_
 
+#include <memory>
 #include <vector>
 
 #include "core/fxcrt/fx_system.h"
@@ -19,9 +20,9 @@ class CCodec_JpxModule {
   CCodec_JpxModule();
   ~CCodec_JpxModule();
 
-  CJPX_Decoder* CreateDecoder(const uint8_t* src_buf,
-                              uint32_t src_size,
-                              CPDF_ColorSpace* cs);
+  std::unique_ptr<CJPX_Decoder> CreateDecoder(const uint8_t* src_buf,
+                                              uint32_t src_size,
+                                              CPDF_ColorSpace* cs);
   void GetImageInfo(CJPX_Decoder* pDecoder,
                     uint32_t* width,
                     uint32_t* height,
@@ -30,7 +31,6 @@ class CCodec_JpxModule {
               uint8_t* dest_data,
               int pitch,
               const std::vector<uint8_t>& offsets);
-  void DestroyDecoder(CJPX_Decoder* pDecoder);
 };
 
 #endif  // CORE_FXCODEC_CODEC_CCODEC_JPXMODULE_H_
diff --git a/core/fxcodec/codec/cjpx_decoder.h b/core/fxcodec/codec/cjpx_decoder.h
new file mode 100644
index 0000000000..2e63caac73
--- /dev/null
+++ b/core/fxcodec/codec/cjpx_decoder.h
@@ -0,0 +1,36 @@
+// Copyright 2017 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_FXCODEC_CODEC_CJPX_DECODER_H_
+#define CORE_FXCODEC_CODEC_CJPX_DECODER_H_
+
+#include <vector>
+
+#include "third_party/libopenjpeg20/openjpeg.h"
+
+class CPDF_ColorSpace;
+
+class CJPX_Decoder {
+ public:
+  explicit CJPX_Decoder(CPDF_ColorSpace* cs);
+  ~CJPX_Decoder();
+
+  bool Init(const unsigned char* src_data, uint32_t src_size);
+  void GetInfo(uint32_t* width, uint32_t* height, uint32_t* components);
+  bool Decode(uint8_t* dest_buf,
+              int pitch,
+              const std::vector<uint8_t>& offsets);
+
+ private:
+  const uint8_t* m_SrcData;
+  uint32_t m_SrcSize;
+  opj_image_t* image;
+  opj_codec_t* l_codec;
+  opj_stream_t* l_stream;
+  const CPDF_ColorSpace* const m_ColorSpace;
+};
+
+#endif  // CORE_FXCODEC_CODEC_CJPX_DECODER_H_
diff --git a/core/fxcodec/codec/fx_codec_flate.cpp b/core/fxcodec/codec/fx_codec_flate.cpp
index 7c19d335bb..269bf58813 100644
--- a/core/fxcodec/codec/fx_codec_flate.cpp
+++ b/core/fxcodec/codec/fx_codec_flate.cpp
@@ -822,7 +822,7 @@ uint32_t CCodec_FlateModule::FlateOrLZWDecode(bool bLZW,
   }
   if (bLZW) {
     {
-      std::unique_ptr<CLZWDecoder> decoder(new CLZWDecoder);
+      auto decoder = pdfium::MakeUnique<CLZWDecoder>();
       dest_size = 0xFFFFFFFF;
       offset = src_size;
       int err =
@@ -832,7 +832,7 @@ uint32_t CCodec_FlateModule::FlateOrLZWDecode(bool bLZW,
       }
     }
     {
-      std::unique_ptr<CLZWDecoder> decoder(new CLZWDecoder);
+      auto decoder = pdfium::MakeUnique<CLZWDecoder>();
       dest_buf = FX_Alloc(uint8_t, dest_size + 1);
       dest_buf[dest_size] = '\0';
       decoder->Decode(dest_buf, dest_size, src_buf, offset, bEarlyChange);
diff --git a/core/fxcodec/codec/fx_codec_jpx_opj.cpp b/core/fxcodec/codec/fx_codec_jpx_opj.cpp
index eccf876218..4fc3d689f1 100644
--- a/core/fxcodec/codec/fx_codec_jpx_opj.cpp
+++ b/core/fxcodec/codec/fx_codec_jpx_opj.cpp
@@ -7,12 +7,15 @@
 #include <algorithm>
 #include <limits>
 #include <memory>
+#include <utility>
 #include <vector>
 
 #include "core/fpdfapi/page/cpdf_colorspace.h"
+#include "core/fxcodec/codec/cjpx_decoder.h"
 #include "core/fxcodec/codec/codec_int.h"
 #include "core/fxcodec/fx_codec.h"
 #include "core/fxcrt/fx_safe_types.h"
+#include "third_party/base/ptr_util.h"
 #include "third_party/lcms2-2.6/include/lcms2.h"
 #include "third_party/libopenjpeg20/openjpeg.h"
 
@@ -669,24 +672,6 @@ void color_apply_conversion(opj_image_t* image) {
     return;
   }
 }
-class CJPX_Decoder {
- public:
-  explicit CJPX_Decoder(CPDF_ColorSpace* cs);
-  ~CJPX_Decoder();
-  bool Init(const unsigned char* src_data, uint32_t src_size);
-  void GetInfo(uint32_t* width, uint32_t* height, uint32_t* components);
-  bool Decode(uint8_t* dest_buf,
-              int pitch,
-              const std::vector<uint8_t>& offsets);
-
- private:
-  const uint8_t* m_SrcData;
-  uint32_t m_SrcSize;
-  opj_image_t* image;
-  opj_codec_t* l_codec;
-  opj_stream_t* l_stream;
-  const CPDF_ColorSpace* const m_ColorSpace;
-};
 
 CJPX_Decoder::CJPX_Decoder(CPDF_ColorSpace* cs)
     : image(nullptr), l_codec(nullptr), l_stream(nullptr), m_ColorSpace(cs) {}
@@ -872,13 +857,15 @@ bool CJPX_Decoder::Decode(uint8_t* dest_buf,
 }
 
 CCodec_JpxModule::CCodec_JpxModule() {}
+
 CCodec_JpxModule::~CCodec_JpxModule() {}
 
-CJPX_Decoder* CCodec_JpxModule::CreateDecoder(const uint8_t* src_buf,
-                                              uint32_t src_size,
-                                              CPDF_ColorSpace* cs) {
-  std::unique_ptr<CJPX_Decoder> decoder(new CJPX_Decoder(cs));
-  return decoder->Init(src_buf, src_size) ? decoder.release() : nullptr;
+std::unique_ptr<CJPX_Decoder> CCodec_JpxModule::CreateDecoder(
+    const uint8_t* src_buf,
+    uint32_t src_size,
+    CPDF_ColorSpace* cs) {
+  auto decoder = pdfium::MakeUnique<CJPX_Decoder>(cs);
+  return decoder->Init(src_buf, src_size) ? std::move(decoder) : nullptr;
 }
 
 void CCodec_JpxModule::GetImageInfo(CJPX_Decoder* pDecoder,
@@ -894,7 +881,3 @@ bool CCodec_JpxModule::Decode(CJPX_Decoder* pDecoder,
                               const std::vector<uint8_t>& offsets) {
   return pDecoder->Decode(dest_data, pitch, offsets);
 }
-
-void CCodec_JpxModule::DestroyDecoder(CJPX_Decoder* pDecoder) {
-  delete pDecoder;
-}
diff --git a/core/fxcodec/jbig2/JBig2_Context.cpp b/core/fxcodec/jbig2/JBig2_Context.cpp
index 109013204e..9261d16bfc 100644
--- a/core/fxcodec/jbig2/JBig2_Context.cpp
+++ b/core/fxcodec/jbig2/JBig2_Context.cpp
@@ -122,7 +122,7 @@ int32_t CJBig2_Context::decode_EmbedOrgnazation(IFX_Pause* pPause) {
 int32_t CJBig2_Context::decode_RandomOrgnazation_FirstPage(IFX_Pause* pPause) {
   int32_t nRet;
   while (m_pStream->getByteLeft() > JBIG2_MIN_SEGMENT_SIZE) {
-    std::unique_ptr<CJBig2_Segment> pSegment(new CJBig2_Segment);
+    auto pSegment = pdfium::MakeUnique<CJBig2_Segment>();
     nRet = parseSegmentHeader(pSegment.get());
     if (nRet != JBIG2_SUCCESS) {
       return nRet;
@@ -364,7 +364,7 @@ int32_t CJBig2_Context::ProcessingParseSegmentData(CJBig2_Segment* pSegment,
       return parseGenericRefinementRegion(pSegment);
     case 48: {
       uint16_t wTemp;
-      std::unique_ptr<JBig2PageInfo> pPageInfo(new JBig2PageInfo);
+      auto pPageInfo = pdfium::MakeUnique<JBig2PageInfo>();
       if (m_pStream->readInteger(&pPageInfo->m_dwWidth) != 0 ||
           m_pStream->readInteger(&pPageInfo->m_dwHeight) != 0 ||
           m_pStream->readInteger(&pPageInfo->m_dwResolutionX) != 0 ||
@@ -424,7 +424,7 @@ int32_t CJBig2_Context::parseSymbolDict(CJBig2_Segment* pSegment,
   if (m_pStream->readShortInteger(&wFlags) != 0)
     return JBIG2_ERROR_TOO_SHORT;
 
-  std::unique_ptr<CJBig2_SDDProc> pSymbolDictDecoder(new CJBig2_SDDProc);
+  auto pSymbolDictDecoder = pdfium::MakeUnique<CJBig2_SDDProc>();
   pSymbolDictDecoder->SDHUFF = wFlags & 0x0001;
   pSymbolDictDecoder->SDREFAGG = (wFlags >> 1) & 0x0001;
   pSymbolDictDecoder->SDTEMPLATE = (wFlags >> 10) & 0x0003;
@@ -600,8 +600,8 @@ int32_t CJBig2_Context::parseSymbolDict(CJBig2_Segment* pSegment,
   }
   if (!cache_hit) {
     if (bUseGbContext) {
-      std::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
-          new CJBig2_ArithDecoder(m_pStream.get()));
+      auto pArithDecoder =
+          pdfium::MakeUnique<CJBig2_ArithDecoder>(m_pStream.get());
       pSegment->m_Result.sd = pSymbolDictDecoder->decode_Arith(
           pArithDecoder.get(), &gbContext, &grContext);
       if (!pSegment->m_Result.sd)
@@ -644,7 +644,7 @@ int32_t CJBig2_Context::parseTextRegion(CJBig2_Segment* pSegment) {
     return JBIG2_ERROR_TOO_SHORT;
   }
 
-  std::unique_ptr<CJBig2_TRDProc> pTRD(new CJBig2_TRDProc);
+  auto pTRD = pdfium::MakeUnique<CJBig2_TRDProc>();
   pTRD->SBW = ri.width;
   pTRD->SBH = ri.height;
   pTRD->SBHUFF = wFlags & 0x0001;
@@ -902,8 +902,8 @@ int32_t CJBig2_Context::parseTextRegion(CJBig2_Segment* pSegment) {
     JBIG2_memset(grContext.get(), 0, sizeof(JBig2ArithCtx) * size);
   }
   if (pTRD->SBHUFF == 0) {
-    std::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
-        new CJBig2_ArithDecoder(m_pStream.get()));
+    auto pArithDecoder =
+        pdfium::MakeUnique<CJBig2_ArithDecoder>(m_pStream.get());
     pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
     pSegment->m_Result.im =
         pTRD->decode_Arith(pArithDecoder.get(), grContext.get(), nullptr);
@@ -938,7 +938,7 @@ int32_t CJBig2_Context::parseTextRegion(CJBig2_Segment* pSegment) {
 int32_t CJBig2_Context::parsePatternDict(CJBig2_Segment* pSegment,
                                          IFX_Pause* pPause) {
   uint8_t cFlags;
-  std::unique_ptr<CJBig2_PDDProc> pPDD(new CJBig2_PDDProc);
+  auto pPDD = pdfium::MakeUnique<CJBig2_PDDProc>();
   if (m_pStream->read1Byte(&cFlags) != 0 ||
       m_pStream->read1Byte(&pPDD->HDPW) != 0 ||
       m_pStream->read1Byte(&pPDD->HDPH) != 0 ||
@@ -956,8 +956,8 @@ int32_t CJBig2_Context::parsePatternDict(CJBig2_Segment* pSegment,
     std::unique_ptr<JBig2ArithCtx, FxFreeDeleter> gbContext(
         FX_Alloc(JBig2ArithCtx, size));
     JBIG2_memset(gbContext.get(), 0, sizeof(JBig2ArithCtx) * size);
-    std::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
-        new CJBig2_ArithDecoder(m_pStream.get()));
+    auto pArithDecoder =
+        pdfium::MakeUnique<CJBig2_ArithDecoder>(m_pStream.get());
     pSegment->m_Result.pd =
         pPDD->decode_Arith(pArithDecoder.get(), gbContext.get(), pPause);
     if (!pSegment->m_Result.pd)
@@ -978,7 +978,7 @@ int32_t CJBig2_Context::parseHalftoneRegion(CJBig2_Segment* pSegment,
                                             IFX_Pause* pPause) {
   uint8_t cFlags;
   JBig2RegionInfo ri;
-  std::unique_ptr<CJBig2_HTRDProc> pHRD(new CJBig2_HTRDProc);
+  auto pHRD = pdfium::MakeUnique<CJBig2_HTRDProc>();
   if (parseRegionInfo(&ri) != JBIG2_SUCCESS ||
       m_pStream->read1Byte(&cFlags) != 0 ||
       m_pStream->readInteger(&pHRD->HGW) != 0 ||
@@ -1022,8 +1022,8 @@ int32_t CJBig2_Context::parseHalftoneRegion(CJBig2_Segment* pSegment,
     std::unique_ptr<JBig2ArithCtx, FxFreeDeleter> gbContext(
         FX_Alloc(JBig2ArithCtx, size));
     JBIG2_memset(gbContext.get(), 0, sizeof(JBig2ArithCtx) * size);
-    std::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
-        new CJBig2_ArithDecoder(m_pStream.get()));
+    auto pArithDecoder =
+        pdfium::MakeUnique<CJBig2_ArithDecoder>(m_pStream.get());
     pSegment->m_Result.im =
         pHRD->decode_Arith(pArithDecoder.get(), gbContext.get(), pPause);
     if (!pSegment->m_Result.im)
@@ -1056,7 +1056,7 @@ int32_t CJBig2_Context::parseHalftoneRegion(CJBig2_Segment* pSegment,
 int32_t CJBig2_Context::parseGenericRegion(CJBig2_Segment* pSegment,
                                            IFX_Pause* pPause) {
   if (!m_pGRD) {
-    std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc);
+    auto pGRD = pdfium::MakeUnique<CJBig2_GRDProc>();
     uint8_t cFlags;
     if (parseRegionInfo(&m_ri) != JBIG2_SUCCESS ||
         m_pStream->read1Byte(&cFlags) != 0) {
@@ -1165,7 +1165,7 @@ int32_t CJBig2_Context::parseGenericRefinementRegion(CJBig2_Segment* pSegment) {
       m_pStream->read1Byte(&cFlags) != 0) {
     return JBIG2_ERROR_TOO_SHORT;
   }
-  std::unique_ptr<CJBig2_GRRDProc> pGRRD(new CJBig2_GRRDProc);
+  auto pGRRD = pdfium::MakeUnique<CJBig2_GRRDProc>();
   pGRRD->GRW = ri.width;
   pGRRD->GRH = ri.height;
   pGRRD->GRTEMPLATE = !!(cFlags & 0x01);
@@ -1202,8 +1202,7 @@ int32_t CJBig2_Context::parseGenericRefinementRegion(CJBig2_Segment* pSegment) {
   std::unique_ptr<JBig2ArithCtx, FxFreeDeleter> grContext(
       FX_Alloc(JBig2ArithCtx, size));
   JBIG2_memset(grContext.get(), 0, sizeof(JBig2ArithCtx) * size);
-  std::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
-      new CJBig2_ArithDecoder(m_pStream.get()));
+  auto pArithDecoder = pdfium::MakeUnique<CJBig2_ArithDecoder>(m_pStream.get());
   pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
   pSegment->m_Result.im = pGRRD->decode(pArithDecoder.get(), grContext.get());
   if (!pSegment->m_Result.im)
@@ -1230,8 +1229,7 @@ int32_t CJBig2_Context::parseGenericRefinementRegion(CJBig2_Segment* pSegment) {
 int32_t CJBig2_Context::parseTable(CJBig2_Segment* pSegment) {
   pSegment->m_nResultType = JBIG2_HUFFMAN_TABLE_POINTER;
   pSegment->m_Result.ht = nullptr;
-  std::unique_ptr<CJBig2_HuffmanTable> pHuff(
-      new CJBig2_HuffmanTable(m_pStream.get()));
+  auto pHuff = pdfium::MakeUnique<CJBig2_HuffmanTable>(m_pStream.get());
   if (!pHuff->IsOK())
     return JBIG2_ERROR_FATAL;
 
diff --git a/core/fxcodec/jbig2/JBig2_GrdProc.cpp b/core/fxcodec/jbig2/JBig2_GrdProc.cpp
index d5d4c6d0dc..675de9bcdd 100644
--- a/core/fxcodec/jbig2/JBig2_GrdProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_GrdProc.cpp
@@ -12,6 +12,7 @@
 #include "core/fxcodec/jbig2/JBig2_ArithDecoder.h"
 #include "core/fxcodec/jbig2/JBig2_BitStream.h"
 #include "core/fxcodec/jbig2/JBig2_Image.h"
+#include "third_party/base/ptr_util.h"
 
 CJBig2_GRDProc::CJBig2_GRDProc()
     : m_loopIndex(0),
@@ -65,7 +66,7 @@ CJBig2_Image* CJBig2_GRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
 CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_opt3(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* gbContext) {
-  std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
+  auto GBREG = pdfium::MakeUnique<CJBig2_Image>(GBW, GBH);
   if (!GBREG->m_pData)
     return nullptr;
 
@@ -164,7 +165,7 @@ CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_unopt(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* gbContext) {
   int LTP = 0;
-  std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
+  auto GBREG = pdfium::MakeUnique<CJBig2_Image>(GBW, GBH);
   GBREG->fill(0);
   for (uint32_t h = 0; h < GBH; h++) {
     if (TPGDON) {
@@ -214,7 +215,7 @@ CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_unopt(
 CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_opt3(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* gbContext) {
-  std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
+  auto GBREG = pdfium::MakeUnique<CJBig2_Image>(GBW, GBH);
   if (!GBREG->m_pData)
     return nullptr;
 
@@ -312,7 +313,7 @@ CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_unopt(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* gbContext) {
   int LTP = 0;
-  std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
+  auto GBREG = pdfium::MakeUnique<CJBig2_Image>(GBW, GBH);
   GBREG->fill(0);
   for (uint32_t h = 0; h < GBH; h++) {
     if (TPGDON) {
@@ -360,7 +361,7 @@ CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_unopt(
 CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_opt3(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* gbContext) {
-  std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
+  auto GBREG = pdfium::MakeUnique<CJBig2_Image>(GBW, GBH);
   if (!GBREG->m_pData)
     return nullptr;
 
@@ -458,7 +459,7 @@ CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_unopt(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* gbContext) {
   int LTP = 0;
-  std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
+  auto GBREG = pdfium::MakeUnique<CJBig2_Image>(GBW, GBH);
   GBREG->fill(0);
   for (uint32_t h = 0; h < GBH; h++) {
     if (TPGDON) {
@@ -504,7 +505,7 @@ CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_unopt(
 CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template3_opt3(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* gbContext) {
-  std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
+  auto GBREG = pdfium::MakeUnique<CJBig2_Image>(GBW, GBH);
   if (!GBREG->m_pData)
     return nullptr;
 
@@ -590,7 +591,7 @@ CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template3_unopt(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* gbContext) {
   int LTP = 0;
-  std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
+  auto GBREG = pdfium::MakeUnique<CJBig2_Image>(GBW, GBH);
   GBREG->fill(0);
   for (uint32_t h = 0; h < GBH; h++) {
     if (TPGDON) {
diff --git a/core/fxcodec/jbig2/JBig2_GrrdProc.cpp b/core/fxcodec/jbig2/JBig2_GrrdProc.cpp
index 669fed68e9..936b851d37 100644
--- a/core/fxcodec/jbig2/JBig2_GrrdProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_GrrdProc.cpp
@@ -11,6 +11,7 @@
 #include "core/fxcodec/jbig2/JBig2_ArithDecoder.h"
 #include "core/fxcodec/jbig2/JBig2_BitStream.h"
 #include "core/fxcodec/jbig2/JBig2_Image.h"
+#include "third_party/base/ptr_util.h"
 
 CJBig2_Image* CJBig2_GRRDProc::decode(CJBig2_ArithDecoder* pArithDecoder,
                                       JBig2ArithCtx* grContext) {
@@ -35,7 +36,7 @@ CJBig2_Image* CJBig2_GRRDProc::decode_Template0_unopt(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* grContext) {
   int LTP = 0;
-  std::unique_ptr<CJBig2_Image> GRREG(new CJBig2_Image(GRW, GRH));
+  auto GRREG = pdfium::MakeUnique<CJBig2_Image>(GRW, GRH);
   GRREG->fill(0);
   for (uint32_t h = 0; h < GRH; h++) {
     if (TPGRON)
@@ -155,7 +156,7 @@ CJBig2_Image* CJBig2_GRRDProc::decode_Template0_opt(
 
   int32_t iGRW = static_cast<int32_t>(GRW);
   int32_t iGRH = static_cast<int32_t>(GRH);
-  std::unique_ptr<CJBig2_Image> GRREG(new CJBig2_Image(iGRW, iGRH));
+  auto GRREG = pdfium::MakeUnique<CJBig2_Image>(iGRW, iGRH);
   if (!GRREG->m_pData)
     return nullptr;
 
@@ -283,7 +284,7 @@ CJBig2_Image* CJBig2_GRRDProc::decode_Template1_unopt(
     CJBig2_ArithDecoder* pArithDecoder,
     JBig2ArithCtx* grContext) {
   int LTP = 0;
-  std::unique_ptr<CJBig2_Image> GRREG(new CJBig2_Image(GRW, GRH));
+  auto GRREG = pdfium::MakeUnique<CJBig2_Image>(GRW, GRH);
   GRREG->fill(0);
   for (uint32_t h = 0; h < GRH; h++) {
     if (TPGRON)
@@ -389,7 +390,7 @@ CJBig2_Image* CJBig2_GRRDProc::decode_Template1_opt(
 
   int32_t iGRW = static_cast<int32_t>(GRW);
   int32_t iGRH = static_cast<int32_t>(GRH);
-  std::unique_ptr<CJBig2_Image> GRREG(new CJBig2_Image(iGRW, iGRH));
+  auto GRREG = pdfium::MakeUnique<CJBig2_Image>(iGRW, iGRH);
   if (!GRREG->m_pData)
     return nullptr;
 
diff --git a/core/fxcodec/jbig2/JBig2_GsidProc.cpp b/core/fxcodec/jbig2/JBig2_GsidProc.cpp
index 387f8ee511..e65b47de62 100644
--- a/core/fxcodec/jbig2/JBig2_GsidProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_GsidProc.cpp
@@ -13,11 +13,12 @@
 #include "core/fxcodec/jbig2/JBig2_GrdProc.h"
 #include "core/fxcodec/jbig2/JBig2_Image.h"
 #include "core/fxcrt/fx_basic.h"
+#include "third_party/base/ptr_util.h"
 
 uint32_t* CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
                                         JBig2ArithCtx* gbContext,
                                         IFX_Pause* pPause) {
-  std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc());
+  auto pGRD = pdfium::MakeUnique<CJBig2_GRDProc>();
   pGRD->MMR = GSMMR;
   pGRD->GBW = GSW;
   pGRD->GBH = GSH;
@@ -69,7 +70,7 @@ uint32_t* CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
 
 uint32_t* CJBig2_GSIDProc::decode_MMR(CJBig2_BitStream* pStream,
                                       IFX_Pause* pPause) {
-  std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc());
+  auto pGRD = pdfium::MakeUnique<CJBig2_GRDProc>();
   pGRD->MMR = GSMMR;
   pGRD->GBW = GSW;
   pGRD->GBH = GSH;
diff --git a/core/fxcodec/jbig2/JBig2_HtrdProc.cpp b/core/fxcodec/jbig2/JBig2_HtrdProc.cpp
index 121bf1d6df..8899fb1350 100644
--- a/core/fxcodec/jbig2/JBig2_HtrdProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_HtrdProc.cpp
@@ -20,7 +20,7 @@ CJBig2_Image* CJBig2_HTRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
   uint32_t HBPP;
   uint32_t* GI;
   std::unique_ptr<CJBig2_Image> HSKIP;
-  std::unique_ptr<CJBig2_Image> HTREG(new CJBig2_Image(HBW, HBH));
+  auto HTREG = pdfium::MakeUnique<CJBig2_Image>(HBW, HBH);
   HTREG->fill(HDEFPIXEL);
   if (HENABLESKIP == 1) {
     HSKIP = pdfium::MakeUnique<CJBig2_Image>(HGW, HGH);
@@ -41,7 +41,7 @@ CJBig2_Image* CJBig2_HTRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
   while ((uint32_t)(1 << HBPP) < HNUMPATS) {
     HBPP++;
   }
-  std::unique_ptr<CJBig2_GSIDProc> pGID(new CJBig2_GSIDProc());
+  auto pGID = pdfium::MakeUnique<CJBig2_GSIDProc>();
   pGID->GSMMR = HMMR;
   pGID->GSW = HGW;
   pGID->GSH = HGH;
@@ -73,13 +73,13 @@ CJBig2_Image* CJBig2_HTRDProc::decode_MMR(CJBig2_BitStream* pStream,
   uint32_t ng, mg;
   int32_t x, y;
   uint32_t* GI;
-  std::unique_ptr<CJBig2_Image> HTREG(new CJBig2_Image(HBW, HBH));
+  auto HTREG = pdfium::MakeUnique<CJBig2_Image>(HBW, HBH);
   HTREG->fill(HDEFPIXEL);
   uint32_t HBPP = 1;
   while ((uint32_t)(1 << HBPP) < HNUMPATS) {
     HBPP++;
   }
-  std::unique_ptr<CJBig2_GSIDProc> pGID(new CJBig2_GSIDProc());
+  auto pGID = pdfium::MakeUnique<CJBig2_GSIDProc>();
   pGID->GSMMR = HMMR;
   pGID->GSW = HGW;
   pGID->GSH = HGH;
diff --git a/core/fxcodec/jbig2/JBig2_PddProc.cpp b/core/fxcodec/jbig2/JBig2_PddProc.cpp
index 679a87a036..3eef302baf 100644
--- a/core/fxcodec/jbig2/JBig2_PddProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_PddProc.cpp
@@ -11,6 +11,7 @@
 #include "core/fxcodec/jbig2/JBig2_GrdProc.h"
 #include "core/fxcodec/jbig2/JBig2_Image.h"
 #include "core/fxcodec/jbig2/JBig2_PatternDict.h"
+#include "third_party/base/ptr_util.h"
 
 CJBig2_PatternDict* CJBig2_PDDProc::decode_Arith(
     CJBig2_ArithDecoder* pArithDecoder,
@@ -18,12 +19,12 @@ CJBig2_PatternDict* CJBig2_PDDProc::decode_Arith(
     IFX_Pause* pPause) {
   uint32_t GRAY;
   CJBig2_Image* BHDC = nullptr;
-  std::unique_ptr<CJBig2_PatternDict> pDict(new CJBig2_PatternDict());
+  auto pDict = pdfium::MakeUnique<CJBig2_PatternDict>();
   pDict->NUMPATS = GRAYMAX + 1;
   pDict->HDPATS = FX_Alloc(CJBig2_Image*, pDict->NUMPATS);
   JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*) * pDict->NUMPATS);
 
-  std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc());
+  auto pGRD = pdfium::MakeUnique<CJBig2_GRDProc>();
   pGRD->MMR = HDMMR;
   pGRD->GBW = (GRAYMAX + 1) * HDPW;
   pGRD->GBH = HDPH;
@@ -60,12 +61,12 @@ CJBig2_PatternDict* CJBig2_PDDProc::decode_MMR(CJBig2_BitStream* pStream,
                                                IFX_Pause* pPause) {
   uint32_t GRAY;
   CJBig2_Image* BHDC = nullptr;
-  std::unique_ptr<CJBig2_PatternDict> pDict(new CJBig2_PatternDict());
+  auto pDict = pdfium::MakeUnique<CJBig2_PatternDict>();
   pDict->NUMPATS = GRAYMAX + 1;
   pDict->HDPATS = FX_Alloc(CJBig2_Image*, pDict->NUMPATS);
   JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*) * pDict->NUMPATS);
 
-  std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc());
+  auto pGRD = pdfium::MakeUnique<CJBig2_GRDProc>();
   pGRD->MMR = HDMMR;
   pGRD->GBW = (GRAYMAX + 1) * HDPW;
   pGRD->GBH = HDPH;
diff --git a/core/fxcodec/jbig2/JBig2_TrdProc.cpp b/core/fxcodec/jbig2/JBig2_TrdProc.cpp
index 84042dbd8c..cf58d9c3c6 100644
--- a/core/fxcodec/jbig2/JBig2_TrdProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_TrdProc.cpp
@@ -16,9 +16,8 @@
 
 CJBig2_Image* CJBig2_TRDProc::decode_Huffman(CJBig2_BitStream* pStream,
                                              JBig2ArithCtx* grContext) {
-  std::unique_ptr<CJBig2_HuffmanDecoder> pHuffmanDecoder(
-      new CJBig2_HuffmanDecoder(pStream));
-  std::unique_ptr<CJBig2_Image> SBREG(new CJBig2_Image(SBW, SBH));
+  auto pHuffmanDecoder = pdfium::MakeUnique<CJBig2_HuffmanDecoder>(pStream);
+  auto SBREG = pdfium::MakeUnique<CJBig2_Image>(SBW, SBH);
   SBREG->fill(SBDEFPIXEL);
   int32_t STRIPT;
   if (pHuffmanDecoder->decodeAValue(SBHUFFDT, &STRIPT) != 0)
@@ -120,7 +119,7 @@ CJBig2_Image* CJBig2_TRDProc::decode_Huffman(CJBig2_BitStream* pStream,
         if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0)
           return nullptr;
 
-        std::unique_ptr<CJBig2_GRRDProc> pGRRD(new CJBig2_GRRDProc());
+        auto pGRRD = pdfium::MakeUnique<CJBig2_GRRDProc>();
         pGRRD->GRW = WOI + RDWI;
         pGRRD->GRH = HOI + RDHI;
         pGRRD->GRTEMPLATE = SBRTEMPLATE;
@@ -134,8 +133,7 @@ CJBig2_Image* CJBig2_TRDProc::decode_Huffman(CJBig2_BitStream* pStream,
         pGRRD->GRAT[3] = SBRAT[3];
 
         {
-          std::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
-              new CJBig2_ArithDecoder(pStream));
+          auto pArithDecoder = pdfium::MakeUnique<CJBig2_ArithDecoder>(pStream);
           IBI = pGRRD->decode(pArithDecoder.get(), grContext);
           if (!IBI)
             return nullptr;
@@ -264,7 +262,7 @@ CJBig2_Image* CJBig2_TRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
     pIARDY = IARDY.get();
     pIAID = IAID.get();
   }
-  std::unique_ptr<CJBig2_Image> SBREG(new CJBig2_Image(SBW, SBH));
+  auto SBREG = pdfium::MakeUnique<CJBig2_Image>(SBW, SBH);
   SBREG->fill(SBDEFPIXEL);
   int32_t STRIPT;
   if (!pIADT->decode(pArithDecoder, &STRIPT))
@@ -335,7 +333,7 @@ CJBig2_Image* CJBig2_TRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
         if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0)
           return nullptr;
 
-        std::unique_ptr<CJBig2_GRRDProc> pGRRD(new CJBig2_GRRDProc());
+        auto pGRRD = pdfium::MakeUnique<CJBig2_GRRDProc>();
         pGRRD->GRW = WOI + RDWI;
         pGRRD->GRH = HOI + RDHI;
         pGRRD->GRTEMPLATE = SBRTEMPLATE;
diff --git a/core/fxcrt/fx_basic_util.cpp b/core/fxcrt/fx_basic_util.cpp
index 19e5696c86..9f699e4da7 100644
--- a/core/fxcrt/fx_basic_util.cpp
+++ b/core/fxcrt/fx_basic_util.cpp
@@ -4,14 +4,15 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "core/fxcrt/fx_basic.h"
-#include "core/fxcrt/fx_ext.h"
-
 #include <algorithm>
 #include <cctype>
 #include <limits>
 #include <memory>
 
+#include "core/fxcrt/fx_basic.h"
+#include "core/fxcrt/fx_ext.h"
+#include "third_party/base/ptr_util.h"
+
 bool FX_atonum(const CFX_ByteStringC& strc, void* pData) {
   if (strc.Find('.') != -1) {
     float* pFloat = static_cast<float*>(pData);
@@ -142,7 +143,7 @@ void FXSYS_vsnprintf(char* str, size_t size, const char* fmt, va_list ap) {
 
 FX_FileHandle* FX_OpenFolder(const char* path) {
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-  std::unique_ptr<CFindFileDataA> pData(new CFindFileDataA);
+  auto pData = pdfium::MakeUnique<CFindFileDataA>();
   pData->m_Handle = FindFirstFileExA((CFX_ByteString(path) + "/*.*").c_str(),
                                      FindExInfoStandard, &pData->m_FindData,
                                      FindExSearchNameMatch, nullptr, 0);
diff --git a/core/fxge/android/fx_android_imp.cpp b/core/fxge/android/fx_android_imp.cpp
index b8e7c5b218..e4fdd1e131 100644
--- a/core/fxge/android/fx_android_imp.cpp
+++ b/core/fxge/android/fx_android_imp.cpp
@@ -11,6 +11,7 @@
 
 #include "core/fxge/android/cfpf_skiadevicemodule.h"
 #include "core/fxge/android/cfx_androidfontinfo.h"
+#include "third_party/base/ptr_util.h"
 
 void CFX_GEModule::InitPlatform() {
   CFPF_SkiaDeviceModule* pDeviceModule = CFPF_GetSkiaDeviceModule();
@@ -19,7 +20,7 @@ void CFX_GEModule::InitPlatform() {
 
   CFPF_SkiaFontMgr* pFontMgr = pDeviceModule->GetFontMgr();
   if (pFontMgr) {
-    std::unique_ptr<CFX_AndroidFontInfo> pFontInfo(new CFX_AndroidFontInfo);
+    auto pFontInfo = pdfium::MakeUnique<CFX_AndroidFontInfo>();
     pFontInfo->Init(pFontMgr);
     m_pFontMgr->SetSystemFontInfo(std::move(pFontInfo));
   }
diff --git a/core/fxge/ge/cfx_fontcache.cpp b/core/fxge/ge/cfx_fontcache.cpp
index 58cee06d42..1599c30b93 100644
--- a/core/fxge/ge/cfx_fontcache.cpp
+++ b/core/fxge/ge/cfx_fontcache.cpp
@@ -12,6 +12,7 @@
 #include "core/fxge/cfx_facecache.h"
 #include "core/fxge/fx_font.h"
 #include "core/fxge/fx_freetype.h"
+#include "third_party/base/ptr_util.h"
 
 CFX_FontCache::CountedFaceCache::CountedFaceCache() {}
 
@@ -35,7 +36,7 @@ CFX_FaceCache* CFX_FontCache::GetCachedFace(const CFX_Font* pFont) {
     return counted_face_cache->m_Obj.get();
   }
 
-  std::unique_ptr<CountedFaceCache> counted_face_cache(new CountedFaceCache);
+  auto counted_face_cache = pdfium::MakeUnique<CountedFaceCache>();
   counted_face_cache->m_nCount = 2;
   CFX_FaceCache* face_cache = new CFX_FaceCache(bExternal ? nullptr : face);
   counted_face_cache->m_Obj.reset(face_cache);