More cleanups on the CanvasRenderingContextHost front

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012, 2013 Intel Corporation. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
@@ skipping 568 matching lines @@
 void CanvasRenderingContext2D::ResourceContentChanged() {
   ResourceElementChanged();
 }
 
 void CanvasRenderingContext2D::ResourceElementChanged() {
   ClearFilterReferences();
   GetState().ClearResolvedFilter();
 }
 
 bool CanvasRenderingContext2D::OriginClean() const {
-  return canvas()->OriginClean();
+  return host()->OriginClean();
 }
 
 void CanvasRenderingContext2D::SetOriginTainted() {
-  return canvas()->SetOriginTainted();
+  return host()->SetOriginTainted();
 }
 
 int CanvasRenderingContext2D::Width() const {
-  return canvas()->width();
+  return host()->Size().Width();
 }
 
 int CanvasRenderingContext2D::Height() const {
-  return canvas()->height();
+  return host()->Size().Height();
 }
 
 bool CanvasRenderingContext2D::HasImageBuffer() const {
   return host()->GetImageBuffer();
 }
 
 ImageBuffer* CanvasRenderingContext2D::GetImageBuffer() const {
   return const_cast<CanvasRenderingContextHost*>(host())
       ->GetOrCreateImageBuffer();
 }
@@ skipping 580 matching lines @@
   }
   return true;
 }
 
 void CanvasRenderingContext2D::ResetUsageTracking() {
   UsageCounters new_counters;
   usage_counters_ = new_counters;
 }
 
 }  // namespace blink