cc:: Add remote mode to the compositor

cc/trees/remote_channel_main.h

+// 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.
+
+#ifndef CC_TREES_REMOTE_CHANNEL_MAIN_H_
+#define CC_TREES_REMOTE_CHANNEL_MAIN_H_
+
+#include "base/macros.h"
+#include "cc/base/cc_export.h"
+#include "cc/trees/channel_main.h"
+#include "cc/trees/remote_proto_channel.h"
+#include "cc/trees/task_runner_provider.h"
+
+namespace cc {
+class ProxyMain;
+
+namespace proto {
+class CompositorMessage;
+}
+
+class CC_EXPORT RemoteChannelMain : public ChannelMain,
+                                    public RemoteProtoChannel::ProtoReceiver {
+ public:
+  static scoped_ptr<RemoteChannelMain> Create(
+      RemoteProtoChannel* remote_proto_channel,
+      ProxyMain* proxy_main,
+      TaskRunnerProvider* task_runner_provider);
+
+  ~RemoteChannelMain() override;
+
+  // ChannelMain implementation
+  void SetThrottleFrameProductionOnImpl(bool throttle) override;
+  void UpdateTopControlsStateOnImpl(TopControlsState constraints,
+                                    TopControlsState current,
+                                    bool animate) override;
+  void InitializeOutputSurfaceOnImpl(OutputSurface* output_surface) override;
+  void MainThreadHasStoppedFlingingOnImpl() override;
+  void SetInputThrottledUntilCommitOnImpl(bool is_throttled) override;
+  void SetDeferCommitsOnImpl(bool defer_commits) override;
+  void FinishAllRenderingOnImpl(CompletionEvent* completion) override;
+  void SetVisibleOnImpl(bool visible) override;
+  void ReleaseOutputSurfaceOnImpl(CompletionEvent* completion) override;
+  void MainFrameWillHappenOnImplForTesting(
+      CompletionEvent* completion,
+      bool* main_frame_will_happen) override;
+  void SetNeedsRedrawOnImpl(const gfx::Rect& damage_rect) override;
+  void SetNeedsCommitOnImpl() override;
+  void BeginMainFrameAbortedOnImpl(
+      CommitEarlyOutReason reason,
+      base::TimeTicks main_thread_start_time) override;
+  void StartCommitOnImpl(CompletionEvent* completion,
+                         LayerTreeHost* layer_tree_host,
+                         base::TimeTicks main_thread_start_time,
+                         bool hold_commit_for_activation) override;
+  void SynchronouslyInitializeImpl(
+      LayerTreeHost* layer_tree_host,
+      scoped_ptr<BeginFrameSource> external_begin_frame_source) override;
+  void SynchronouslyCloseImpl() override;
+
+  // RemoteProtoChannel::ProtoReceiver implementation
+  void OnProtoReceived(scoped_ptr<proto::CompositorMessage> proto) override;
+
+ protected:
+  RemoteChannelMain(RemoteProtoChannel* remote_proto_channel,
+                    ProxyMain* proxy_main,
+                    TaskRunnerProvider* task_runner_provider);
+
+ private:
+  void SendMessageProto(const proto::CompositorMessage& proto);
+
+  RemoteProtoChannel* remote_proto_channel_;
+  ProxyMain* proxy_main_;
+  TaskRunnerProvider* task_runner_provider_;
+
+  bool initialized_;
+
+  DISALLOW_COPY_AND_ASSIGN(RemoteChannelMain);
+};
+
+}  // namespace cc
+
+#endif  // CC_TREES_REMOTE_CHANNEL_MAIN_H_