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

content/public/browser/android/synchronous_compositor.h

Index: content/public/browser/android/synchronous_compositor.h
diff --git a/content/public/browser/android/synchronous_compositor.h b/content/public/browser/android/synchronous_compositor.h
index be7920993b1fc87e77814009f2725206114b9625..476b86dce8310bb235402a50a67bab4137f8fca5 100644
--- a/content/public/browser/android/synchronous_compositor.h
+++ b/content/public/browser/android/synchronous_compositor.h
@@ -87,11 +87,6 @@
   // SynchronousCompositorClient::GetTotalRootLayerScrollOffset).
   virtual void DidChangeRootLayerScrollOffset() = 0;
 
-  // Called by the embedder to notify that the compositor is active. The
-  // compositor won't ask for vsyncs when it's inactive. NOTE: The compositor
-  // starts off as inactive and needs a SetActive(true) call to begin.
-  virtual void SetIsActive(bool is_active) = 0;
-
  protected:
   virtual ~SynchronousCompositor() {}
 };