Fix BaseRenderingContext2D create/put/get-ImageData() for color managed canvas

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 261 matching lines @@
   if (contextLostRestoredEventsEnabled()) {
     Event* event(Event::create(EventTypeNames::contextrestored));
     canvas()->dispatchEvent(event);
   }
 }
 
 void CanvasRenderingContext2D::willDrawImage(CanvasImageSource* source) const {
   canvas()->willDrawImageTo2DContext(source);
 }
 
+const CanvasRenderingContext* CanvasRenderingContext2D::renderingContext()
+    const {
+  return static_cast<CanvasRenderingContext*>(
+      const_cast<CanvasRenderingContext2D*>(this));
+}
+
 ColorBehavior CanvasRenderingContext2D::drawImageColorBehavior() const {
   return CanvasRenderingContext::colorBehaviorForMediaDrawnToCanvas();
 }
 
 void CanvasRenderingContext2D::reset() {
   // This is a multiple inherritance bootstrap
   BaseRenderingContext2D::reset();
 }
 
 void CanvasRenderingContext2D::restoreCanvasMatrixClipStack(
@@ skipping 871 matching lines @@
   }
   return true;
 }
 
 void CanvasRenderingContext2D::resetUsageTracking() {
   UsageCounters newCounters;
   m_usageCounters = newCounters;
 }
 
 }  // namespace blink