Adding the 'filter' context attribute to 2D canvas

Source/core/html/canvas/CanvasRenderingContext2D.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011, 2012 Apple 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
@@ skipping 101 matching lines @@
     void setGlobalAlpha(float);
 
     bool isContextLost() const;
 
     bool shouldAntialias() const;
     void setShouldAntialias(bool);
 
     String globalCompositeOperation() const;
     void setGlobalCompositeOperation(const String&);
 
+    String filter() const;
+    void setFilter(const String&);
+
     void save();
     void restore();
 
     PassRefPtrWillBeRawPtr<SVGMatrixTearOff> currentTransform() const;
     void setCurrentTransform(PassRefPtrWillBeRawPtr<SVGMatrixTearOff>);
 
     void scale(float sx, float sy);
     void rotate(float angleInRadians);
     void translate(float tx, float ty);
     void transform(float m11, float m12, float m21, float m22, float dx, float dy);
@@ skipping 124 matching lines @@
 
     const Font& accessFont();
     int getFontBaseline(const FontMetrics&) const;
 
     void clearCanvas();
     bool rectContainsTransformedRect(const FloatRect&, const SkIRect&) const;
 
     void inflateStrokeRect(FloatRect&) const;
 
     template<typename DrawFunc>
-    void fullCanvasCompositedDraw(const DrawFunc&, CanvasRenderingContext2DState::PaintType, CanvasRenderingContext2DState::ImageType);
+    void compositedDraw(const DrawFunc&, CanvasRenderingContext2DState::PaintType, CanvasRenderingContext2DState::ImageType);
 
     void drawFocusIfNeededInternal(const Path&, Element*);
     bool focusRingCallIsValid(const Path&, Element*);
     void drawFocusRing(const Path&);
     void updateFocusRingElementAccessibility(const Path&, Element*);
 
     void validateStateStack();
 
     enum DrawType {
         ClipFill, // Fill that is already known to cover the current clip
@@ skipping 25 matching lines @@
     Timer<CanvasRenderingContext2D> m_dispatchContextLostEventTimer;
     Timer<CanvasRenderingContext2D> m_dispatchContextRestoredEventTimer;
     Timer<CanvasRenderingContext2D> m_tryRestoreContextEventTimer;
 };
 
 DEFINE_TYPE_CASTS(CanvasRenderingContext2D, CanvasRenderingContext, context, context->is2d(), context.is2d());
 
 } // namespace blink
 
 #endif // CanvasRenderingContext2D_h