Fix UpdateTilePriorities viewport in Android WebView.

content/browser/android/in_process/synchronous_compositor_impl.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_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 34 matching lines @@
 
   InputEventAckState HandleInputEvent(const WebKit::WebInputEvent& input_event);
 
   // SynchronousCompositor
   virtual void SetClient(SynchronousCompositorClient* compositor_client)
       OVERRIDE;
   virtual bool InitializeHwDraw(
       scoped_refptr<gfx::GLSurface> surface) OVERRIDE;
   virtual void ReleaseHwDraw() OVERRIDE;
   virtual bool DemandDrawHw(
-      gfx::Size view_size,
+      gfx::Size surface_size,
       const gfx::Transform& transform,
+      gfx::Rect viewport,
       gfx::Rect clip,
       bool stencil_enabled) OVERRIDE;
   virtual bool DemandDrawSw(SkCanvas* canvas) OVERRIDE;
   virtual void DidChangeRootLayerScrollOffset() OVERRIDE;
 
   // SynchronousCompositorOutputSurfaceDelegate
   virtual void DidBindOutputSurface(
       SynchronousCompositorOutputSurface* output_surface) OVERRIDE;
   virtual void DidDestroySynchronousOutputSurface(
       SynchronousCompositorOutputSurface* output_surface) OVERRIDE;
@@ skipping 22 matching lines @@
   SynchronousCompositorOutputSurface* output_surface_;
   WebContents* contents_;
   cc::InputHandler* input_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_