Moving GraphicsContext and dependencies from core to platform.

Source/core/html/canvas/WebGLCompressedTextureATC.cpp

 /*
  * Copyright (C) 2013 Google Inc. 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 
 #include "core/html/canvas/WebGLCompressedTextureATC.h"
 
-#include "core/platform/graphics/Extensions3D.h"
+#include "platform/graphics/Extensions3D.h"
 
 namespace WebCore {
 
 WebGLCompressedTextureATC::WebGLCompressedTextureATC(WebGLRenderingContext* context)
     : WebGLExtension(context)
 {
     ScriptWrappable::init(this);
     context->addCompressedTextureFormat(Extensions3D::COMPRESSED_ATC_RGB_AMD);
     context->addCompressedTextureFormat(Extensions3D::COMPRESSED_ATC_RGBA_EXPLICIT_ALPHA_AMD);
     context->addCompressedTextureFormat(Extensions3D::COMPRESSED_ATC_RGBA_INTERPOLATED_ALPHA_AMD);
@@ skipping 18 matching lines @@
     Extensions3D* extensions = context->graphicsContext3D()->extensions();
     return extensions->supports("GL_AMD_compressed_ATC_texture");
 }
 
 const char* WebGLCompressedTextureATC::extensionName()
 {
     return "WEBGL_compressed_texture_atc";
 }
 
 } // namespace WebCore