Implement support for loading font files from outside system directory

content/test/dwrite_font_fake_sender_win.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/test/dwrite_font_fake_sender_win.h"
 
 #include <dwrite.h>
 #include <shlobj.h>
 
 #include "content/common/dwrite_font_proxy_messages.h"
@@ skipping 91 matching lines @@
 }
 
 void FakeFontCollection::ReplySender::OnGetFamilyNames(
     uint32_t family_index,
     std::vector<DWriteStringPair>* family_names) {
   collection_->OnGetFamilyNames(family_index, family_names);
 }
 
 void FakeFontCollection::ReplySender::OnGetFontFiles(
     uint32_t family_index,
-    std::vector<base::string16>* file_paths) {
-  collection_->OnGetFontFiles(family_index, file_paths);
+    std::vector<base::string16>* file_paths,
+    std::vector<IPC::PlatformFileForTransit>* file_handles) {
+  collection_->OnGetFontFiles(family_index, file_paths, file_handles);
 }
 
 void FakeFontCollection::ReplySender::OnMapCharacters(
     const base::string16& text,
     const DWriteFontStyle& font_style,
     const base::string16& locale_name,
     uint32_t reading_direction,
     const base::string16& base_family_name,
     MapCharactersResult* result) {
   collection_->OnMapCharacters(text, font_style, locale_name, reading_direction,
@@ skipping 41 matching lines @@
 void FakeFontCollection::OnGetFamilyNames(
     uint32_t family_index,
     std::vector<DWriteStringPair>* family_names) {
   if (family_index >= fonts_.size())
     return;
   *family_names = fonts_[family_index].family_names_;
 }
 
 void FakeFontCollection::OnGetFontFiles(
     uint32_t family_index,
-    std::vector<base::string16>* file_paths) {
+    std::vector<base::string16>* file_paths,
+    std::vector<IPC::PlatformFileForTransit>* file_handles) {
   if (family_index >= fonts_.size())
     return;
   *file_paths = fonts_[family_index].file_paths_;
+  *file_handles = fonts_[family_index].file_handles_;
 }
 
 void FakeFontCollection::OnMapCharacters(const base::string16& text,
                                          const DWriteFontStyle& font_style,
                                          const base::string16& locale_name,
                                          uint32_t reading_direction,
                                          const base::string16& base_family_name,
                                          MapCharactersResult* result) {
   result->family_index = 0;
   result->family_name = fonts_[0].font_name();
   result->mapped_length = 1;
   result->scale = 1.0;
   result->font_style.font_weight = DWRITE_FONT_WEIGHT_NORMAL;
   result->font_style.font_slant = DWRITE_FONT_STYLE_NORMAL;
   result->font_style.font_stretch = DWRITE_FONT_STRETCH_NORMAL;
 }
 
 std::unique_ptr<FakeFontCollection::ReplySender>
 FakeFontCollection::GetReplySender() {
   return std::unique_ptr<FakeFontCollection::ReplySender>(
       new FakeFontCollection::ReplySender(this));
 }
 
 FakeFontCollection::~FakeFontCollection() = default;
 
 }  // namespace content