cc: Make scheduling be driven by vsync for android webview.

content/public/browser/android/synchronous_compositor_client.h

Index: content/public/browser/android/synchronous_compositor_client.h
diff --git a/content/public/browser/android/synchronous_compositor_client.h b/content/public/browser/android/synchronous_compositor_client.h
index 4a5d0d933fb6e6a2cc9d74dddef8e228db4fd47a..bde28a822708ae449814f794f2497e87a08ea464 100644
--- a/content/public/browser/android/synchronous_compositor_client.h
+++ b/content/public/browser/android/synchronous_compositor_client.h
@@ -39,10 +39,9 @@ class SynchronousCompositorClient {
                              gfx::Vector2dF latest_overscroll_delta,
                              gfx::Vector2dF current_fling_velocity) = 0;
 
-  // When true, should periodically call
-  // SynchronousCompositorOutputSurface::DemandDrawHw. Note that this value
-  // can change inside DemandDrawHw call.
-  virtual void SetContinuousInvalidate(bool invalidate) = 0;
+  virtual void SetNeedsVSyncs(bool needs_vsyncs);
+
+  virtual void PostInvalidate();
 
   virtual void DidUpdateContent() = 0;