cc: Single-threaded impl-side painting for unit tests

cc/trees/single_thread_proxy.h

 // Copyright 2011 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_SINGLE_THREAD_PROXY_H_
 #define CC_TREES_SINGLE_THREAD_PROXY_H_
 
 #include <limits>
 
 #include "base/time/time.h"
 #include "cc/animation/animation_events.h"
 #include "cc/output/begin_frame_args.h"
 #include "cc/scheduler/scheduler.h"
+#include "cc/trees/blocking_task_runner.h"
 #include "cc/trees/layer_tree_host_impl.h"
 #include "cc/trees/proxy.h"
 #include "cc/trees/proxy_timing_history.h"
 
 namespace cc {
 
 class ContextProvider;
 class LayerTreeHost;
 class LayerTreeHostSingleThreadClient;
 
@@ skipping 71 matching lines @@
   virtual void PostAnimationEventsToMainThreadOnImplThread(
       scoped_ptr<AnimationEventsVector> events) OVERRIDE;
   virtual bool ReduceContentsTextureMemoryOnImplThread(
       size_t limit_bytes,
       int priority_cutoff) OVERRIDE;
   virtual bool IsInsideDraw() OVERRIDE;
   virtual void RenewTreePriority() OVERRIDE {}
   virtual void PostDelayedScrollbarFadeOnImplThread(
       const base::Closure& start_fade,
       base::TimeDelta delay) OVERRIDE {}
-  virtual void DidActivateSyncTree() OVERRIDE {}
+  virtual void DidActivateSyncTree() OVERRIDE;
   virtual void DidManageTiles() OVERRIDE;
   virtual void SetDebugState(const LayerTreeDebugState& debug_state) OVERRIDE {}
 
   // Attempts to create the context and renderer synchronously. Calls
   // LayerTreeHost::OnCreateAndInitializeOutputSurfaceAttempted with the result.
   void CreateAndInitializeOutputSurface();
 
   // Called by the legacy path where RenderWidget does the scheduling.
   void CompositeImmediately(base::TimeTicks frame_begin_time);
 
  private:
   SingleThreadProxy(
       LayerTreeHost* layer_tree_host,
       LayerTreeHostSingleThreadClient* client,
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner);
 
   void BeginMainFrame();
   void BeginMainFrameAbortedOnImplThread();
   void DoCommit(const BeginFrameArgs& begin_frame_args);
   DrawResult DoComposite(base::TimeTicks frame_begin_time,
                          LayerTreeHostImpl::FrameData* frame);
   void DoSwap();
   void DidCommitAndDrawFrame();
+  void CommitComplete();
 
   bool ShouldComposite() const;
   void UpdateBackgroundAnimateTicking();
 
   // Accessed on main thread only.
   LayerTreeHost* layer_tree_host_;
   LayerTreeHostSingleThreadClient* client_;
 
   // Used on the Thread, but checked on main thread during
   // initialization/shutdown.
   scoped_ptr<LayerTreeHostImpl> layer_tree_host_impl_;
   RendererCapabilities renderer_capabilities_for_main_thread_;
 
   // Accessed from both threads.
   scoped_ptr<Scheduler> scheduler_on_impl_thread_;
   ProxyTimingHistory timing_history_;
 
+  scoped_ptr<BlockingTaskRunner::CapturePostTasks> commit_blocking_task_runner_;
   bool next_frame_is_newly_committed_frame_;
 
   bool inside_draw_;
   bool defer_commits_;
   bool commit_was_deferred_;
   bool commit_requested_;
 
   base::WeakPtrFactory<SingleThreadProxy> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleThreadProxy);
@@ skipping 56 matching lines @@
  private:
   DebugScopedSetImplThread impl_thread_;
   DebugScopedSetMainThreadBlocked main_thread_blocked_;
 
   DISALLOW_COPY_AND_ASSIGN(DebugScopedSetImplThreadAndMainThreadBlocked);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_SINGLE_THREAD_PROXY_H_