Moving GraphicsContext and dependencies from core to platform.

Source/platform/graphics/filters/Filter.h

 /*
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef Filter_h
 #define Filter_h
 
-#include "core/platform/graphics/ImageBuffer.h"
+#include "platform/PlatformExport.h"
 #include "platform/geometry/FloatRect.h"
 #include "platform/geometry/FloatSize.h"
+#include "platform/graphics/ImageBuffer.h"
 #include "wtf/RefCounted.h"
 
 namespace WebCore {
 
 class FilterEffect;
 
-class Filter : public RefCounted<Filter> {
+class PLATFORM_EXPORT Filter : public RefCounted<Filter> {
 public:
     Filter(const AffineTransform& absoluteTransform) : m_renderingMode(Unaccelerated), m_absoluteTransform(absoluteTransform) { }
     virtual ~Filter() { }
 
     void setSourceImage(PassOwnPtr<ImageBuffer> sourceImage) { m_sourceImage = sourceImage; }
     ImageBuffer* sourceImage() { return m_sourceImage.get(); }
 
     FloatSize filterResolution() const { return m_filterResolution; }
     void setFilterResolution(const FloatSize& filterResolution) { m_filterResolution = filterResolution; }
 
@@ skipping 30 matching lines @@
     FloatSize m_filterResolution;
     RenderingMode m_renderingMode;
     AffineTransform m_absoluteTransform;
     FloatRect m_absoluteFilterRegion;
     FloatRect m_filterRegion;
 };
 
 } // namespace WebCore
 
 #endif // Filter_h