Removed "compositor" child window that was created by the GPU process.

gpu/command_buffer/service/gpu_scheduler.h

 // Copyright (c) 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 GPU_COMMAND_BUFFER_SERVICE_GPU_SCHEDULER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GPU_SCHEDULER_H_
 
 #include <queue>
 #include <vector>
 
@@ skipping 45 matching lines @@
                   const char* allowed_extensions,
                   const std::vector<int32>& attribs,
                   GpuScheduler* parent,
                   uint32 parent_texture_id);
 
   void Destroy();
   void DestroyCommon();
 
   virtual void ProcessCommands();
 
-  // Helper which causes a call to ProcessCommands to be scheduled later.
-  void ScheduleProcessCommands();
+  // Sets whether commands should be processed by this scheduler. Setting to
+  // false unschedules. Setting to true reschedules. Whether or not the
+  // scheduler is currently scheduled is "reference counted". Every call with
+  // false must eventually be paired by a call with true.
+  void SetScheduled(bool is_scheduled);
 
   // Implementation of CommandBufferEngine.
   virtual Buffer GetSharedMemoryBuffer(int32 shm_id);
   virtual void set_token(int32 token);
   virtual bool SetGetOffset(int32 offset);
   virtual int32 GetGetOffset();
 
   // Asynchronously resizes an offscreen frame buffer.
   void ResizeOffscreenFrameBuffer(const gfx::Size& size);
 
@@ skipping 52 matching lines @@
       gfx::GLContext* context,
       const gfx::Size& size,
       const gles2::DisallowedExtensions& disallowed_extensions,
       const char* allowed_extensions,
       const std::vector<int32>& attribs,
       gles2::GLES2Decoder* parent_decoder,
       uint32 parent_texture_id);
 
 
  private:
+  // Helper which causes a call to ProcessCommands to be scheduled later.
+  void ScheduleProcessCommands();
+
   // Called via a callback just before we are supposed to call the
   // user's swap buffers callback.
   virtual void WillSwapBuffers();
 
   // The GpuScheduler holds a weak reference to the CommandBuffer. The
   // CommandBuffer owns the GpuScheduler and holds a strong reference to it
   // through the ProcessCommands callback.
   CommandBuffer* command_buffer_;
 
   int commands_per_update_;
 
   scoped_ptr<gles2::GLES2Decoder> decoder_;
   scoped_ptr<CommandParser> parser_;
 
+  // Greater than zero if this is waiting to be rescheduled before continuing.
+  int unscheduled_count_;
+
 #if defined(OS_MACOSX)
   scoped_ptr<AcceleratedSurface> surface_;
   uint64 swap_buffers_count_;
   uint64 acknowledged_swap_buffers_count_;
 #endif
 
   ScopedRunnableMethodFactory<GpuScheduler> method_factory_;
   scoped_ptr<Callback0::Type> wrapped_swap_buffers_callback_;
   scoped_ptr<Callback0::Type> command_processed_callback_;
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GPU_SCHEDULER_H_