Add an API to set the ColorFilter on a Paint object.

sky/engine/platform/graphics/GraphicsContext.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  * 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.
@@ skipping 199 matching lines @@
     void setRegionTrackingMode(RegionTrackingMode);
     bool regionTrackingEnabled() { return m_regionTrackingMode != RegionTrackingDisabled; }
     const RegionTracker& opaqueRegion() const { return m_trackedRegion; }
 
     // The text region is empty until tracking is turned on.
     // It is never clerared by the context.
     void setTrackTextRegion(bool track) { m_trackTextRegion = track; }
     const SkRect& textRegion() const { return m_textRegion; }
 
     SkColorFilter* colorFilter() const;
-    void setColorFilter(ColorFilter);
+    void setColorFilter(ColorFilterObsolete);
     // ---------- End state management methods -----------------
 
     // Get the contents of the image buffer
     bool readPixels(const SkImageInfo&, void* pixels, size_t rowBytes, int x, int y);
 
     // Get the current fill style.
     const SkPaint& fillPaint() const { return immutableState()->fillPaint(); }
 
     // Get the current stroke style.
     const SkPaint& strokePaint() const { return immutableState()->strokePaint(); }
@@ skipping 78 matching lines @@
     void drawHighlightForText(const Font&, const TextRun&, const FloatPoint&, int h, const Color& backgroundColor, int from = 0, int to = -1);
 
     void drawLineForText(const FloatPoint&, float width);
     enum DocumentMarkerLineStyle {
         DocumentMarkerSpellingLineStyle,
         DocumentMarkerGrammarLineStyle
     };
     void drawLineForDocumentMarker(const FloatPoint&, float width, DocumentMarkerLineStyle);
 
     void beginTransparencyLayer(float opacity, const FloatRect* = 0);
-    void beginLayer(float opacity, CompositeOperator, const FloatRect* = 0, ColorFilter = ColorFilterNone, ImageFilter* = 0);
+    void beginLayer(float opacity, CompositeOperator, const FloatRect* = 0, ColorFilterObsolete = ColorFilterNone, ImageFilter* = 0);
     void endLayer();
 
     bool hasShadow() const;
     void setShadow(const FloatSize& offset, float blur, const Color&,
         DrawLooperBuilder::ShadowTransformMode = DrawLooperBuilder::ShadowRespectsTransforms,
         DrawLooperBuilder::ShadowAlphaMode = DrawLooperBuilder::ShadowRespectsAlpha);
     void clearShadow() { clearDrawLooper(); }
 
     // It is assumed that this draw looper is used only for shadows
     // (i.e. a draw looper is set if and only if there is a shadow).
@@ skipping 68 matching lines @@
 
     GraphicsContextState* mutableState()
     {
         realizePaintSave();
         return m_paintState;
     }
 
     static void setPathFromConvexPoints(SkPath*, size_t, const FloatPoint*);
     static void setRadii(SkVector*, IntSize, IntSize, IntSize, IntSize);
 
-    static PassRefPtr<SkColorFilter> WebCoreColorFilterToSkiaColorFilter(ColorFilter);
+    static PassRefPtr<SkColorFilter> WebCoreColorFilterToSkiaColorFilter(ColorFilterObsolete);
 
     static inline int focusRingOutset(int offset) { return 0; }
     static inline int focusRingWidth(int width) { return 1; }
     static SkPMColor lineColors(int);
     static SkPMColor antiColors1(int);
     static SkPMColor antiColors2(int);
     static void draw1xMarker(SkBitmap*, int);
     static void draw2xMarker(SkBitmap*, int);
 
     // Helpers for drawing a focus ring (drawFocusRing)
@@ skipping 81 matching lines @@
 
     bool m_accelerated : 1;
     bool m_isCertainlyOpaque : 1;
     bool m_antialiasHairlineImages : 1;
     bool m_shouldSmoothFonts : 1;
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_PLATFORM_GRAPHICS_GRAPHICSCONTEXT_H_