cc: Defer first OutputSurface creation until client is ready

cc/trees/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_THREAD_PROXY_H_
 #define CC_TREES_THREAD_PROXY_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 40 matching lines @@
   virtual void SetNeedsAnimate() OVERRIDE;
   virtual void SetNeedsUpdateLayers() OVERRIDE;
   virtual void SetNeedsCommit() OVERRIDE;
   virtual void SetNeedsRedraw(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;
   virtual bool BeginMainFrameRequested() const OVERRIDE;
   virtual void MainThreadHasStoppedFlinging() OVERRIDE;
-  virtual void Start(scoped_ptr<OutputSurface> first_output_surface) OVERRIDE;
+  virtual void Start() OVERRIDE;
   virtual void Stop() OVERRIDE;
   virtual size_t MaxPartialTextureUpdates() const OVERRIDE;
   virtual void AcquireLayerTextures() OVERRIDE;
   virtual void ForceSerializeOnSwapBuffers() OVERRIDE;
   virtual scoped_ptr<base::Value> AsValue() const OVERRIDE;
   virtual bool CommitPendingForTesting() OVERRIDE;
   virtual scoped_ptr<base::Value> SchedulerStateAsValueForTesting() OVERRIDE;
 
   // LayerTreeHostImplClient implementation
   virtual void DidLoseOutputSurfaceOnImplThread() OVERRIDE;
@@ skipping 143 matching lines @@
   // Use one of the contents_texture_manager_on functions above instead of using
   // this variable directly.
   PrioritizedResourceManager* contents_texture_manager_unsafe_;
   RendererCapabilities renderer_capabilities_main_thread_copy_;
   bool started_;
   bool textures_acquired_;
   bool in_composite_and_readback_;
   bool manage_tiles_pending_;
   // Weak pointer to use when posting tasks to the impl thread.
   base::WeakPtr<ThreadProxy> impl_thread_weak_ptr_;
-  // Holds the first output surface passed from Start. Should not be used for
-  // anything else.
-  scoped_ptr<OutputSurface> first_output_surface_;
 
   // Accessed on the main thread, or when main thread is blocked.
   bool commit_waits_for_activation_;
   bool inside_commit_;
 
   scoped_ptr<LayerTreeHostImpl> layer_tree_host_impl_;
 
   scoped_ptr<Scheduler> scheduler_on_impl_thread_;
 
   // Set when the main thread is waiting on a
@@ skipping 48 matching lines @@
   base::WeakPtr<ThreadProxy> main_thread_weak_ptr_;
   base::WeakPtrFactory<ThreadProxy> weak_factory_on_impl_thread_;
   base::WeakPtrFactory<ThreadProxy> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadProxy);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_THREAD_PROXY_H_