MemoryPressure: sends the signal to the renderer.

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>
@@ skipping 11 matching lines @@
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"  // Temporary
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_local.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/values.h"
 #include "content/child/appcache_dispatcher.h"
 #include "content/child/child_histogram_message_filter.h"
 #include "content/child/indexed_db/indexed_db_dispatcher.h"
 #include "content/child/indexed_db/indexed_db_message_filter.h"
+#include "content/child/memory_pressure_message_filter.h"
 #include "content/child/npobject_util.h"
 #include "content/child/plugin_messages.h"
 #include "content/child/resource_dispatcher.h"
 #include "content/child/runtime_features.h"
 #include "content/child/web_database_observer_impl.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"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
@@ skipping 318 matching lines @@
   AddFilter(vc_manager_->video_capture_message_filter());
 
   audio_input_message_filter_ =
       new AudioInputMessageFilter(GetIOMessageLoopProxy());
   AddFilter(audio_input_message_filter_.get());
 
   audio_message_filter_ = new AudioMessageFilter(GetIOMessageLoopProxy());
   AddFilter(audio_message_filter_.get());
 
   AddFilter(new IndexedDBMessageFilter);
+  AddFilter(new MemoryPressureMessageFilter);
 
   GetContentClient()->renderer()->RenderThreadStarted();
 
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kEnableGpuBenchmarking))
       RegisterExtension(GpuBenchmarkingExtension::Get());
 
 #if defined(USE_TCMALLOC) && (defined(OS_LINUX) || defined(OS_ANDROID))
   if (command_line.HasSwitch(switches::kEnableMemoryBenchmarking))
     RegisterExtension(MemoryBenchmarkingExtension::Get());
@@ skipping 852 matching lines @@
 
 void RenderThreadImpl::SetFlingCurveParameters(
     const std::vector<float>& new_touchpad,
     const std::vector<float>& new_touchscreen) {
   webkit_platform_support_->SetFlingCurveParameters(new_touchpad,
                                                     new_touchscreen);
 
 }
 
 }  // namespace content