Fix UpdateTilePriorities viewport in Android WebView.

content/browser/android/in_process/synchronous_compositor_impl.h

Index: content/browser/android/in_process/synchronous_compositor_impl.h
diff --git a/content/browser/android/in_process/synchronous_compositor_impl.h b/content/browser/android/in_process/synchronous_compositor_impl.h
index f0ea2c6e8248f7215d3eb7d46d64a6065a082684..854c5eb00e94d7b50e1f8469dfea55202adcbbad 100644
--- a/content/browser/android/in_process/synchronous_compositor_impl.h
+++ b/content/browser/android/in_process/synchronous_compositor_impl.h
@@ -52,8 +52,9 @@ class SynchronousCompositorImpl
       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;