Make SingleThreadProxy a SchedulerClient

ui/compositor/compositor.h

 // Copyright (c) 2012 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 UI_COMPOSITOR_COMPOSITOR_H_
 #define UI_COMPOSITOR_COMPOSITOR_H_
 
 #include <string>
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/time/time.h"
 #include "cc/trees/layer_tree_host_client.h"
 #include "cc/trees/layer_tree_host_single_thread_client.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/compositor/compositor_export.h"
 #include "ui/compositor/compositor_observer.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/vector2d.h"
 
-class SkBitmap;
-
 namespace base {
 class MessageLoopProxy;
 class RunLoop;
 }
 
 namespace cc {
 class ContextProvider;
 class Layer;
 class LayerTreeDebugState;
 class LayerTreeHost;
 }
 
 namespace gfx {
 class Rect;
 class Size;
 }
 
 namespace gpu {
 struct Mailbox;
 }
 
 namespace ui {
 
 class Compositor;
 class CompositorVSyncManager;
 class Layer;
-class PostedSwapQueue;
 class Reflector;
 class Texture;
 struct LatencyInfo;
 
 // This class abstracts the creation of the 3D context for the compositor. It is
 // a global object.
 class COMPOSITOR_EXPORT ContextFactory {
  public:
   virtual ~ContextFactory() {}
 
@@ skipping 129 matching lines @@
 
   // Called when we need the compositor to preserve the alpha channel in the
   // output for situations when we want to render transparently atop something
   // else, e.g. Aero glass.
   void SetHostHasTransparentBackground(bool host_has_transparent_background);
 
   // The scale factor of the device that this compositor is
   // compositing layers on.
   float device_scale_factor() const { return device_scale_factor_; }
 
-  // Draws the scene created by the layer tree and any visual effects.
-  void Draw();
-
   // Where possible, draws are scissored to a damage region calculated from
   // changes to layer properties.  This bypasses that and indicates that
   // the whole frame needs to be drawn.
   void ScheduleFullRedraw();
 
   // Schedule redraw and append damage_rect to the damage region calculated
   // from changes to layer properties.
   void ScheduleRedrawRect(const gfx::Rect& damage_rect);
 
   void SetLatencyInfo(const LatencyInfo& latency_info);
@@ skipping 87 matching lines @@
 
   ObserverList<CompositorObserver> observer_list_;
 
   gfx::AcceleratedWidget widget_;
   scoped_refptr<cc::Layer> root_web_layer_;
   scoped_ptr<cc::LayerTreeHost> host_;
 
   // The manager of vsync parameters for this compositor.
   scoped_refptr<CompositorVSyncManager> vsync_manager_;
 
-  // Used to verify that we have at most one draw swap in flight.
-  scoped_ptr<PostedSwapQueue> posted_swaps_;
-
   // The device scale factor of the monitor that this compositor is compositing
   // layers on.
   float device_scale_factor_;
 
   int last_started_frame_;
   int last_ended_frame_;
 
-  bool next_draw_is_resize_;
-
   bool disable_schedule_composite_;
 
   CompositorLock* compositor_lock_;
 
-  // Prevent more than one draw from being scheduled.
-  bool defer_draw_scheduling_;
-
-  // Used to prevent Draw()s while a composite is in progress.
-  bool waiting_on_compositing_end_;
-  bool draw_on_compositing_end_;
-
   base::WeakPtrFactory<Compositor> schedule_draw_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Compositor);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_COMPOSITOR_H_