Use vsync manager regardless of begin frame settings

content/browser/compositor/browser_compositor_output_surface.h

Index: content/browser/compositor/browser_compositor_output_surface.h
diff --git a/content/browser/compositor/browser_compositor_output_surface.h b/content/browser/compositor/browser_compositor_output_surface.h
index 89d0fd8f4a0f64c01cea4d75abd38423385639d9..5abdb29215ee4fb37ba940f88119c72b4c6a29e0 100644
--- a/content/browser/compositor/browser_compositor_output_surface.h
+++ b/content/browser/compositor/browser_compositor_output_surface.h
@@ -35,19 +35,13 @@ class ReflectorImpl;
 class WebGraphicsContext3DCommandBufferImpl;
 
 class CONTENT_EXPORT BrowserCompositorOutputSurface
-    : public cc::OutputSurface,
-      public ui::CompositorVSyncManager::Observer {
+    : public cc::OutputSurface {
  public:
   ~BrowserCompositorOutputSurface() override;
 
   // cc::OutputSurface implementation.
-  bool BindToClient(cc::OutputSurfaceClient* client) override;
   cc::OverlayCandidateValidator* GetOverlayCandidateValidator() const override;
 
-  // ui::CompositorVSyncManager::Observer implementation.
-  void OnUpdateVSyncParameters(base::TimeTicks timebase,
-                               base::TimeDelta interval) override;
-
   void OnUpdateVSyncParametersFromGpu(base::TimeTicks timebase,
                                       base::TimeDelta interval);
 
@@ -95,15 +89,9 @@ class CONTENT_EXPORT BrowserCompositorOutputSurface
   cc::SyntheticBeginFrameSource* synthetic_begin_frame_source_;
   ReflectorImpl* reflector_;
 
-  // True when BeginFrame scheduling is enabled.
-  bool use_begin_frame_scheduling_;
-
  private:
   void Initialize();
 
-  void UpdateVSyncParametersInternal(base::TimeTicks timebase,
-                                     base::TimeDelta interval);
-
   std::unique_ptr<display_compositor::CompositorOverlayCandidateValidator>
       overlay_candidate_validator_;