Moving GraphicsContext and dependencies from core to platform.

Source/core/html/HTMLCanvasElement.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 25 matching lines @@
 #include "bindings/v8/ScriptController.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/html/ImageData.h"
 #include "core/html/canvas/Canvas2DContextAttributes.h"
 #include "core/html/canvas/CanvasRenderingContext2D.h"
 #include "core/html/canvas/WebGLContextAttributes.h"
 #include "core/html/canvas/WebGLRenderingContext.h"
 #include "core/frame/Frame.h"
 #include "core/page/Settings.h"
-#include "core/platform/graphics/GraphicsContextStateSaver.h"
-#include "core/platform/graphics/ImageBuffer.h"
 #include "core/rendering/RenderHTMLCanvas.h"
 #include "platform/MIMETypeRegistry.h"
+#include "platform/graphics/GraphicsContextStateSaver.h"
+#include "platform/graphics/ImageBuffer.h"
 #include "public/platform/Platform.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 // These values come from the WhatWG spec.
 static const int DefaultWidth = 300;
 static const int DefaultHeight = 150;
 
@@ skipping 481 matching lines @@
     ASSERT(hasImageBuffer() && !m_didFailToCreateImageBuffer);
     IntSize unscaledSize = size();
     IntSize size = convertLogicalToDevice(unscaledSize);
     AffineTransform transform;
     if (size.width() && size.height())
         transform.scaleNonUniform(size.width() / unscaledSize.width(), size.height() / unscaledSize.height());
     return m_imageBuffer->baseTransform() * transform;
 }
 
 }