Use refs for GraphicsContext

third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * 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
@@ skipping 811 matching lines @@
             SkScalarToFloat(dest.width()), SkScalarToFloat(dest.height()),
             image->currentFrameIsComplete());
 
         if (resampling == InterpolationNone) {
             // FIXME: This is to not break tests (it results in the filter bitmap flag
             // being set to true). We need to decide if we respect InterpolationNone
             // being returned from computeInterpolationQuality.
             resampling = InterpolationLow;
         }
     }
-    return static_cast<SkFilterQuality>(limitInterpolationQuality(this, resampling));
+    return static_cast<SkFilterQuality>(limitInterpolationQuality(*this, resampling));
 }
 
 void GraphicsContext::drawTiledImage(Image* image, const FloatRect& destRect, const FloatPoint& srcPoint, const FloatSize& tileSize, SkXfermode::Mode op, const FloatSize& repeatSpacing)
 {
     if (contextDisabled() || !image)
         return;
-    image->drawTiled(this, destRect, srcPoint, tileSize, op, repeatSpacing);
+    image->drawTiled(*this, destRect, srcPoint, tileSize, op, repeatSpacing);
 }
 
 void GraphicsContext::drawTiledImage(Image* image, const IntRect& destRect, const IntPoint& srcPoint, const IntSize& tileSize, SkXfermode::Mode op, const IntSize& repeatSpacing)
 {
     if (contextDisabled() || !image)
         return;
-    image->drawTiled(this, destRect, srcPoint, FloatSize(tileSize), op, FloatSize(repeatSpacing));
+    image->drawTiled(*this, destRect, srcPoint, FloatSize(tileSize), op, FloatSize(repeatSpacing));
 }
 
 void GraphicsContext::drawTiledImage(Image* image, const FloatRect& dest, const FloatRect& srcRect,
     const FloatSize& tileScaleFactor, Image::TileRule hRule, Image::TileRule vRule, SkXfermode::Mode op)
 {
     if (contextDisabled() || !image)
         return;
 
     if (hRule == Image::StretchTile && vRule == Image::StretchTile) {
         // Just do a scale.
         drawImage(image, dest, srcRect, op);
         return;
     }
 
-    image->drawTiled(this, dest, srcRect, tileScaleFactor, hRule, vRule, op);
+    image->drawTiled(*this, dest, srcRect, tileScaleFactor, hRule, vRule, op);
 }
 
 void GraphicsContext::drawOval(const SkRect& oval, const SkPaint& paint)
 {
     if (contextDisabled())
         return;
     ASSERT(m_canvas);
 
     m_canvas->drawOval(oval, paint);
 }
@@ skipping 489 matching lines @@
     static const SkPMColor colors[] = {
         SkPreMultiplyARGB(0x60, 0xFF, 0x00, 0x00), // More transparent red
         SkPreMultiplyARGB(0x60, 0xC0, 0xC0, 0xC0)  // More transparent gray
     };
 
     return colors[index];
 }
 #endif
 
 } // namespace blink