Fix for 128506: Random Chinese/Japanese characters are missing in documents printed via the syst...

content/renderer/render_thread_impl.cc

 // Copyright (c) 2012 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/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
 
 #include "base/allocator/allocator_extension.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/stats_table.h"
 #include "base/path_service.h"
 #include "base/shared_memory.h"
+#include "base/string16.h"
 #include "base/string_number_conversions.h"  // Temporary
 #include "base/threading/thread_local.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "content/common/appcache/appcache_dispatcher.h"
 #include "content/common/child_histogram_message_filter.h"
 #include "content/common/child_process_messages.h"
 #include "content/common/database_messages.h"
 #include "content/common/db_message_filter.h"
 #include "content/common/dom_storage_messages.h"
@@ skipping 813 matching lines @@
   if (!audio_renderer_mixer_manager_.get()) {
     audio_renderer_mixer_manager_.reset(new AudioRendererMixerManager(
         GetAudioOutputSampleRate(),
         GetAudioOutputBufferSize()));
   }
 
   return audio_renderer_mixer_manager_.get();
 }
 
 #if defined(OS_WIN)
+void RenderThreadImpl::PreCacheFontCharacters(const LOGFONT& log_font,
+                                              const string16& str) {
+  Send(new ViewHostMsg_PreCacheFontCharacters(log_font, str));
+}
+
 void RenderThreadImpl::PreCacheFont(const LOGFONT& log_font) {
   Send(new ChildProcessHostMsg_PreCacheFont(log_font));
 }
 
 void RenderThreadImpl::ReleaseCachedFonts() {
   Send(new ChildProcessHostMsg_ReleaseCachedFonts());
 }
 
 #endif  // OS_WIN
 
@@ skipping 244 matching lines @@
 RenderThreadImpl::GetFileThreadMessageLoopProxy() {
   DCHECK(message_loop() == MessageLoop::current());
   if (!file_thread_.get()) {
     file_thread_.reset(new base::Thread("Renderer::FILE"));
     file_thread_->Start();
   }
   return file_thread_->message_loop_proxy();
 }
 
 }  // namespace content