Implement canvas color space IDL format for 2D 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 949 matching lines @@
 
 bool CanvasRenderingContext2D::isTransformInvertible() const {
   return state().isTransformInvertible();
 }
 
 WebLayer* CanvasRenderingContext2D::platformLayer() const {
   return canvas()->buffer() ? canvas()->buffer()->platformLayer() : 0;
 }
 
 void CanvasRenderingContext2D::getContextAttributes(
-    Canvas2DContextAttributes& attrs) const {
-  attrs.setAlpha(creationAttributes().alpha());
-  attrs.setColorSpace(colorSpaceAsString());
+    CanvasRenderingContext2DSettings& settings) const {
+  settings.setAlpha(creationAttributes().alpha());
+  settings.setColorSpace(colorSpaceAsString());
+  settings.setPixelFormat(pixelFormatAsString());
+  settings.setLinearPixelMath(linearPixelMath());
 }
 
 void CanvasRenderingContext2D::drawFocusIfNeeded(Element* element) {
   drawFocusIfNeededInternal(m_path, element);
 }
 
 void CanvasRenderingContext2D::drawFocusIfNeeded(Path2D* path2d,
                                                  Element* element) {
   drawFocusIfNeededInternal(path2d->path(), element);
 }
@@ skipping 174 matching lines @@
   }
   return true;
 }
 
 void CanvasRenderingContext2D::resetUsageTracking() {
   UsageCounters newCounters;
   m_usageCounters = newCounters;
 }
 
 }  // namespace blink