Making OutputSurface a begin frame source and vsync source.

content/browser/android/in_process/synchronous_compositor_output_surface.cc

Index: content/browser/android/in_process/synchronous_compositor_output_surface.cc
diff --git a/content/browser/android/in_process/synchronous_compositor_output_surface.cc b/content/browser/android/in_process/synchronous_compositor_output_surface.cc
index 59556ad894a191dd0bef8f95399947fe3892a0fd..8d4a272aa20d48f004084710da22069c7f7fe2d1 100644
--- a/content/browser/android/in_process/synchronous_compositor_output_surface.cc
+++ b/content/browser/android/in_process/synchronous_compositor_output_surface.cc
@@ -121,9 +121,10 @@ void SynchronousCompositorOutputSurface::Reshape(
   // Intentional no-op: surface size is controlled by the embedder.
 }
 
-void SynchronousCompositorOutputSurface::SetNeedsBeginFrame(bool enable) {
+void SynchronousCompositorOutputSurface::SetNeedsBeginFrames(
+    bool needs_begin_frames) {
   DCHECK(CalledOnValidThread());
-  needs_begin_frame_ = enable;
+  needs_begin_frame_ = needs_begin_frames;
   SynchronousCompositorOutputSurfaceDelegate* delegate = GetDelegate();
   if (delegate && !invoking_composite_)
     delegate->SetContinuousInvalidate(needs_begin_frame_);
@@ -233,7 +234,7 @@ void SynchronousCompositorOutputSurface::InvokeComposite(
                              transform_for_tile_priority,
                              !hardware_draw);
   SetNeedsRedrawRect(gfx::Rect(viewport.size()));
-  client_->BeginFrame(cc::BeginFrameArgs::CreateForSynchronousCompositor());
+  SendBeginFrame(cc::BeginFrameArgs::CreateForSynchronousCompositor());
 
   // After software draws (which might move the viewport arbitrarily), restore
   // the previous hardware viewport to allow CC's tile manager to prioritize