Add delegate and factory function for ChildMemoryCoordinator

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_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 "components/memory_coordinator/child/child_memory_coordinator_impl.h"
 #include "content/child/child_thread_impl.h"
 #include "content/common/content_export.h"
 #include "content/common/frame.mojom.h"
 #include "content/common/frame_replication_state.h"
 #include "content/common/render_frame_message_filter.mojom.h"
 #include "content/common/storage_partition_service.mojom.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/renderer/gpu/compositor_dependencies.h"
 #include "content/renderer/layout_test_dependencies.h"
 #include "gpu/ipc/client/gpu_channel_host.h"
@@ skipping 39 matching lines @@
 }
 
 namespace IPC {
 class MessageFilter;
 }
 
 namespace media {
 class GpuVideoAcceleratorFactories;
 }
 
-namespace memory_coordinator {
-class ChildMemoryCoordinatorImpl;
-}
-
 namespace ui {
 class GpuService;
 }
 
 namespace v8 {
 class Extension;
 }
 
 namespace content {
 
@@ skipping 48 matching lines @@
 // process (i.e., their corresponding WebContentsImpl).
 //
 // 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 memory_coordinator::ChildMemoryCoordinatorDelegate,
       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();
 
   ~RenderThreadImpl() override;
   void Shutdown() override;
@@ skipping 281 matching lines @@
 
   void AddEmbeddedWorkerRoute(int32_t routing_id, IPC::Listener* listener);
   void RemoveEmbeddedWorkerRoute(int32_t routing_id);
 
   void RegisterPendingFrameCreate(int routing_id,
                                   mojom::FrameRequest frame,
                                   mojom::FrameHostPtr host);
 
   mojom::StoragePartitionService* GetStoragePartitionService();
 
+  // memory_coordinator::ChildMemoryCoordinatorDelegate implementation.
+  void OnTrimMemoryImmediately() override;
+
  protected:
   RenderThreadImpl(
       const InProcessChildThreadParams& params,
       std::unique_ptr<blink::scheduler::RendererScheduler> scheduler,
       scoped_refptr<base::SingleThreadTaskRunner>& resource_task_queue);
   RenderThreadImpl(
       std::unique_ptr<base::MessageLoop> main_message_loop,
       std::unique_ptr<blink::scheduler::RendererScheduler> scheduler);
 
  private:
@@ skipping 246 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(RenderThreadImpl);
 };
 
 #if defined(COMPILER_MSVC)
 #pragma warning(pop)
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_THREAD_IMPL_H_