Don't destroy RenderWidgetCompositor during DoDeferredClose

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"
@@ skipping 17 matching lines @@
   static scoped_ptr<Proxy> Create(
       LayerTreeHost* layer_tree_host,
       LayerTreeHostSingleThreadClient* client,
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner);
   virtual ~SingleThreadProxy();
 
   // Proxy implementation
   virtual void FinishAllRendering() OVERRIDE;
   virtual bool IsStarted() const OVERRIDE;
   virtual void SetLayerTreeHostClientReady() OVERRIDE;
+  virtual void SetLayerTreeHostClientFinished() OVERRIDE;
   virtual void SetVisible(bool visible) OVERRIDE;
   virtual const RendererCapabilities& GetRendererCapabilities() const OVERRIDE;
   virtual void SetNeedsAnimate() OVERRIDE;
   virtual void SetNeedsUpdateLayers() OVERRIDE;
   virtual void SetNeedsCommit() OVERRIDE;
   virtual void SetNeedsRedraw(const gfx::Rect& damage_rect) OVERRIDE;
   virtual void SetNextCommitWaitsForActivation() OVERRIDE;
   virtual void NotifyInputThrottledUntilCommit() OVERRIDE {}
   virtual void SetDeferCommits(bool defer_commits) OVERRIDE;
   virtual bool CommitRequested() const OVERRIDE;
@@ skipping 94 matching lines @@
   // Accessed from both threads.
   scoped_ptr<Scheduler> scheduler_on_impl_thread_;
   ProxyTimingHistory timing_history_;
 
   bool next_frame_is_newly_committed_frame_;
 
   bool inside_draw_;
   bool defer_commits_;
   bool commit_was_deferred_;
   bool commit_requested_;
+  bool host_client_finished_;
 
   base::WeakPtrFactory<SingleThreadProxy> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleThreadProxy);
 };
 
 // For use in the single-threaded case. In debug builds, it pretends that the
 // code is running on the impl thread to satisfy assertion checks.
 class DebugScopedSetImplThread {
  public:
@@ skipping 50 matching lines @@
  private:
   DebugScopedSetImplThread impl_thread_;
   DebugScopedSetMainThreadBlocked main_thread_blocked_;
 
   DISALLOW_COPY_AND_ASSIGN(DebugScopedSetImplThreadAndMainThreadBlocked);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_SINGLE_THREAD_PROXY_H_