Fix UpdateTilePriorities viewport in Android WebView.

content/browser/android/in_process/synchronous_compositor_impl.cc

 // 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.
 
 #include "content/browser/android/in_process/synchronous_compositor_impl.h"
 
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop.h"
 #include "base/synchronization/lock.h"
 #include "cc/input/input_handler.h"
@@ skipping 235 matching lines @@
       g_factory.Get().GetOffscreenContextProviderForCompositorThread());
 }
 
 void SynchronousCompositorImpl::ReleaseHwDraw() {
   DCHECK(CalledOnValidThread());
   DCHECK(output_surface_);
   return output_surface_->ReleaseHwDraw();
 }
 
 bool SynchronousCompositorImpl::DemandDrawHw(
-      gfx::Size view_size,
+      gfx::Size surface_size,
       const gfx::Transform& transform,
-      gfx::Rect damage_area,
+      gfx::Rect viewport,
+      gfx::Rect clip,
       bool stencil_enabled) {
   DCHECK(CalledOnValidThread());
   DCHECK(output_surface_);
 
   return output_surface_->DemandDrawHw(
-      view_size, transform, damage_area, stencil_enabled);
+      surface_size, transform, viewport, clip, stencil_enabled);
 }
 
 bool SynchronousCompositorImpl::DemandDrawSw(SkCanvas* canvas) {
   DCHECK(CalledOnValidThread());
   DCHECK(output_surface_);
 
   return output_surface_->DemandDrawSw(canvas);
 }
 
 void SynchronousCompositorImpl::DidChangeRootLayerScrollOffset() {
@@ skipping 99 matching lines @@
     g_factory.Get();  // Ensure it's initialized.
     SynchronousCompositorImpl::CreateForWebContents(contents);
   }
   if (SynchronousCompositorImpl* instance =
       SynchronousCompositorImpl::FromWebContents(contents)) {
     instance->SetClient(client);
   }
 }
 
 }  // namespace content