Implement InterpolationMedium to filter animated images

Source/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 226 matching lines @@
 
     void strokeRect(const FloatRect&, float lineWidth);
 
     void fillBetweenRoundedRects(const IntRect&, const IntSize& outerTopLeft, const IntSize& outerTopRight, const IntSize& outerBottomLeft, const IntSize& outerBottomRight,
         const IntRect&, const IntSize& innerTopLeft, const IntSize& innerTopRight, const IntSize& innerBottomLeft, const IntSize& innerBottomRight, const Color&);
     void fillBetweenRoundedRects(const RoundedRect&, const RoundedRect&, const Color&);
 
     void drawDisplayList(DisplayList*);
 
     void drawImage(Image*, const IntPoint&, CompositeOperator = CompositeSourceOver, RespectImageOrientationEnum = DoNotRespectImageOrientation);
-    void drawImage(Image*, const IntRect&, CompositeOperator = CompositeSourceOver, RespectImageOrientationEnum = DoNotRespectImageOrientation, bool useLowQualityScale = false);
+    void drawImage(Image*, const IntRect&, CompositeOperator = CompositeSourceOver, RespectImageOrientationEnum = DoNotRespectImageOrientation);
     void drawImage(Image*, const FloatRect& destRect);
-    void drawImage(Image*, const FloatRect& destRect, const FloatRect& srcRect, CompositeOperator = CompositeSourceOver, RespectImageOrientationEnum = DoNotRespectImageOrientation, bool useLowQualityScale = false);
-    void drawImage(Image*, const FloatRect& destRect, const FloatRect& srcRect, CompositeOperator, blink::WebBlendMode, RespectImageOrientationEnum = DoNotRespectImageOrientation, bool useLowQualityScale = false);
+    void drawImage(Image*, const FloatRect& destRect, const FloatRect& srcRect, CompositeOperator = CompositeSourceOver, RespectImageOrientationEnum = DoNotRespectImageOrientation);
+    void drawImage(Image*, const FloatRect& destRect, const FloatRect& srcRect, CompositeOperator, blink::WebBlendMode, RespectImageOrientationEnum = DoNotRespectImageOrientation);
 
     void drawTiledImage(Image*, const IntRect& destRect, const IntPoint& srcPoint, const IntSize& tileSize,
-        CompositeOperator = CompositeSourceOver, bool useLowQualityScale = false, blink::WebBlendMode = blink::WebBlendModeNormal, const IntSize& repeatSpacing = IntSize());
+        CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal, const IntSize& repeatSpacing = IntSize());
     void drawTiledImage(Image*, const IntRect& destRect, const IntRect& srcRect,
         const FloatSize& tileScaleFactor, Image::TileRule hRule = Image::StretchTile, Image::TileRule vRule = Image::StretchTile,
-        CompositeOperator = CompositeSourceOver, bool useLowQualityScale = false);
+        CompositeOperator = CompositeSourceOver);
 
     void drawImageBuffer(ImageBuffer*, const IntPoint&, CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal);
-    void drawImageBuffer(ImageBuffer*, const IntRect&, CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal, bool useLowQualityScale = false);
+    void drawImageBuffer(ImageBuffer*, const IntRect&, CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal);
     void drawImageBuffer(ImageBuffer*, const IntPoint& destPoint, const IntRect& srcRect, CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal);
-    void drawImageBuffer(ImageBuffer*, const IntRect& destRect, const IntRect& srcRect, CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal, bool useLowQualityScale = false);
+    void drawImageBuffer(ImageBuffer*, const IntRect& destRect, const IntRect& srcRect, CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal);
     void drawImageBuffer(ImageBuffer*, const FloatRect& destRect);
-    void drawImageBuffer(ImageBuffer*, const FloatRect& destRect, const FloatRect& srcRect, CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal, bool useLowQualityScale = false);
+    void drawImageBuffer(ImageBuffer*, const FloatRect& destRect, const FloatRect& srcRect, CompositeOperator = CompositeSourceOver, blink::WebBlendMode = blink::WebBlendModeNormal);
 
     // These methods write to the canvas and modify the opaque region, if tracked.
     // Also drawLine(const IntPoint& point1, const IntPoint& point2) and fillRoundedRect
     void writePixels(const SkImageInfo&, const void* pixels, size_t rowBytes, int x, int y);
     void writePixels(const SkBitmap&, int x, int y);
     void drawBitmap(const SkBitmap&, SkScalar, SkScalar, const SkPaint* = 0);
     void drawBitmapRect(const SkBitmap&, const SkRect*, const SkRect&, const SkPaint* = 0);
     void drawOval(const SkRect&, const SkPaint&);
     void drawPath(const SkPath&, const SkPaint&);
     // After drawing directly to the context's canvas, use this function to notify the context so
@@ skipping 227 matching lines @@
     // FIXME: Make this go away: crbug.com/236892
     bool m_updatingControlTints : 1;
     bool m_accelerated : 1;
     bool m_isCertainlyOpaque : 1;
     bool m_printing : 1;
 };
 
 } // namespace WebCore
 
 #endif // GraphicsContext_h