Make RenderThreadImpl a client of memory coordinator

content/renderer/render_thread_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 #define CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/cancelable_callback.h"
 #include "base/macros.h"
+#include "base/memory/memory_coordinator_client.h"
 #include "base/memory/memory_pressure_listener.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/user_metrics_action.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
 #include "base/threading/thread_checker.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
 #include "content/child/child_thread_impl.h"
 #include "content/child/memory/child_memory_coordinator_impl.h"
@@ skipping 121 matching lines @@
 //
 // Most of the communication occurs in the form of IPC messages.  They are
 // routed to the RenderThread according to the routing IDs of the messages.
 // The routing IDs correspond to RenderView instances.
 class CONTENT_EXPORT RenderThreadImpl
     : public RenderThread,
       public ChildThreadImpl,
       public gpu::GpuChannelHostFactory,
       public blink::scheduler::RendererScheduler::RAILModeObserver,
       public ChildMemoryCoordinatorDelegate,
+      public base::MemoryCoordinatorClient,
       NON_EXPORTED_BASE(public mojom::Renderer),
       // TODO(blundell): Separate this impl out into Blink.
       NON_EXPORTED_BASE(public device::mojom::TimeZoneMonitorClient),
       NON_EXPORTED_BASE(public CompositorDependencies) {
  public:
   static RenderThreadImpl* Create(const InProcessChildThreadParams& params);
   static RenderThreadImpl* Create(
       std::unique_ptr<base::MessageLoop> main_message_loop,
       std::unique_ptr<blink::scheduler::RendererScheduler> renderer_scheduler);
   static RenderThreadImpl* current();
@@ skipping 319 matching lines @@
   void OnProcessPurgeAndSuspend() override;
   void RecordAction(const base::UserMetricsAction& action) override;
   void RecordComputedAction(const std::string& action) override;
 
   // GpuChannelHostFactory implementation:
   bool IsMainThread() override;
   scoped_refptr<base::SingleThreadTaskRunner> GetIOThreadTaskRunner() override;
   std::unique_ptr<base::SharedMemory> AllocateSharedMemory(
       size_t size) override;
 
+  // base::MemoryCoordinatorClient implementation:
+  void OnMemoryStateChange(base::MemoryState state) override;
+
+  void ClearMemory();
+
   void Init(scoped_refptr<base::SingleThreadTaskRunner>& resource_task_queue);
 
   void InitializeCompositorThread();
 
   void InitializeWebKit(
       scoped_refptr<base::SingleThreadTaskRunner>& resource_task_queue);
 
   void OnTransferBitmap(const SkBitmap& bitmap, int resource_id);
 #if defined(ENABLE_PLUGINS)
   void OnPurgePluginListCache(bool reload_pages);
@@ skipping 235 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(RenderThreadImpl);
 };
 
 #if defined(COMPILER_MSVC)
 #pragma warning(pop)
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_THREAD_IMPL_H_