Read compositor VSync information from platform, when possible

content/browser/renderer_host/render_widget_host_view_aura.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 19 matching lines @@
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/activation_change_observer.h"
 #include "ui/aura/client/activation_delegate.h"
 #include "ui/aura/client/cursor_client_observer.h"
 #include "ui/aura/client/focus_change_observer.h"
 #include "ui/aura/root_window_observer.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/compositor_observer.h"
+#include "ui/compositor/compositor_vsync_manager.h"
 #include "ui/gfx/display_observer.h"
 #include "ui/gfx/rect.h"
 #include "webkit/common/cursors/webcursor.h"
 
 namespace aura {
 class WindowTracker;
 namespace client {
 class ScopedTooltipDisabler;
 }
 }
@@ skipping 22 matching lines @@
 #endif
 
 class RenderWidgetHostImpl;
 class RenderWidgetHostView;
 class ResizeLock;
 
 // RenderWidgetHostView class hierarchy described in render_widget_host_view.h.
 class CONTENT_EXPORT RenderWidgetHostViewAura
     : public RenderWidgetHostViewBase,
       public ui::CompositorObserver,
+      public ui::CompositorVSyncManager::Observer,
       public ui::TextInputClient,
       public gfx::DisplayObserver,
       public aura::RootWindowObserver,
       public aura::WindowDelegate,
       public aura::client::ActivationDelegate,
       public aura::client::ActivationChangeObserver,
       public aura::client::FocusChangeObserver,
       public aura::client::CursorClientObserver,
       public ImageTransportFactoryObserver,
       public BrowserAccessibilityDelegate,
@@ skipping 273 matching lines @@
   void UnlockResources();
 
   // Overridden from ui::CompositorObserver:
   virtual void OnCompositingDidCommit(ui::Compositor* compositor) OVERRIDE;
   virtual void OnCompositingStarted(ui::Compositor* compositor,
                                     base::TimeTicks start_time) OVERRIDE;
   virtual void OnCompositingEnded(ui::Compositor* compositor) OVERRIDE;
   virtual void OnCompositingAborted(ui::Compositor* compositor) OVERRIDE;
   virtual void OnCompositingLockStateChanged(
       ui::Compositor* compositor) OVERRIDE;
-  virtual void OnUpdateVSyncParameters(ui::Compositor* compositor,
-                                       base::TimeTicks timebase,
+
+  // Overridden from ui::CompositorVSyncManager::Observer
+  virtual void OnUpdateVSyncParameters(base::TimeTicks timebase,
                                        base::TimeDelta interval) OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SetCompositionText);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventState);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventSyncAsync);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SwapNotifiesWindow);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
                            SkippedDelegatedFrames);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, OutputSurfaceIdChange);
@@ skipping 392 matching lines @@
   // etc.
   scoped_ptr<content::LegacyRenderWidgetHostHWND>
       legacy_render_widget_host_HWND_;
 #endif
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_