Removing the dependency on GraphicsContext for drawing images in 2D canvas

Source/platform/graphics/skia/SkiaUtils.h

Index: Source/platform/graphics/skia/SkiaUtils.h
diff --git a/Source/platform/graphics/skia/SkiaUtils.h b/Source/platform/graphics/skia/SkiaUtils.h
index f0372ae22414ae02e762cbb7e7d86f351aede557..d4ada98c1513a0b6168333ef14f24f4ca2b94ae3 100644
--- a/Source/platform/graphics/skia/SkiaUtils.h
+++ b/Source/platform/graphics/skia/SkiaUtils.h
@@ -33,15 +33,13 @@
 #ifndef SkiaUtils_h
 #define SkiaUtils_h
 
-#include "SkMatrix.h"
-#include "SkPaint.h"
-#include "SkPath.h"
-#include "SkXfermode.h"
 #include "platform/PlatformExport.h"
 #include "platform/geometry/FloatRect.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/GraphicsTypes.h"
 #include "platform/transforms/AffineTransform.h"
+#include "third_party/skia/include/core/SkCanvas.h"
+#include "third_party/skia/include/effects/SkCornerPathEffect.h"
 #include "wtf/MathExtras.h"
 
 namespace blink {
@@ -127,8 +125,6 @@ InterpolationQuality computeInterpolationQuality(
     float destHeight,
     bool isDataComplete = true);
 
-bool shouldDrawAntiAliased(const GraphicsContext*, const SkRect& destRect);
-
 // This replicates the old skia behavior when it used to take radius for blur. Now it takes sigma.
 inline SkScalar skBlurRadiusToSigma(SkScalar radius)
 {
@@ -136,6 +132,9 @@ inline SkScalar skBlurRadiusToSigma(SkScalar radius)
     return 0.288675f * radius + 0.5f;
 }
 
+template<typename PrimitiveType>

[Stephen White, 2015/05/29 21:38:52]

Nit: I would prefer to have two non-templated functions in the header, which in
the .cpp wrap calls to the template instantiations, but now we're deep into
personal style and I've subjected you to too much of that already. :)

+void drawPlatformFocusRing(const PrimitiveType&, SkCanvas*, SkColor, int width);
+
 } // namespace blink
 
 #endif  // SkiaUtils_h