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

content/public/browser/android/synchronous_compositor_client.h

 // Copyright 2013 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_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
 
 #include "base/basictypes.h"
 #include "ui/gfx/geometry/size_f.h"
 #include "ui/gfx/geometry/vector2d_f.h"
@@ skipping 21 matching lines @@
                                     const gfx::SizeF& scrollable_size,
                                     float page_scale_factor,
                                     float min_page_scale_factor,
                                     float max_page_scale_factor) = 0;
   virtual bool IsExternalFlingActive() const = 0;
 
   virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
                              gfx::Vector2dF latest_overscroll_delta,
                              gfx::Vector2dF current_fling_velocity) = 0;
 
-  virtual void PostInvalidate() = 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 DidUpdateContent() = 0;
 
  protected:
   SynchronousCompositorClient() {}
   virtual ~SynchronousCompositorClient() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_