Trim Skia dependencies in Blink

third_party/WebKit/Source/modules/csspaint/PaintRenderingContext2D.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PaintRenderingContext2D_h
 #define PaintRenderingContext2D_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "modules/ModulesExport.h"
 #include "modules/canvas2d/BaseRenderingContext2D.h"
 #include "platform/graphics/ImageBuffer.h"
-#include "third_party/skia/include/core/SkCanvas.h"
+
+class SkCanvas;
 
 namespace blink {
 
 class CanvasImageSource;
 class Color;
 
 class MODULES_EXPORT PaintRenderingContext2D : public BaseRenderingContext2D, public GarbageCollectedFinalized<PaintRenderingContext2D>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
     USING_GARBAGE_COLLECTED_MIXIN(PaintRenderingContext2D);
     WTF_MAKE_NONCOPYABLE(PaintRenderingContext2D);
@@ skipping 44 matching lines @@
 
 private:
     explicit PaintRenderingContext2D(PassOwnPtr<ImageBuffer>);
 
     OwnPtr<ImageBuffer> m_imageBuffer;
 };
 
 } // namespace blink
 
 #endif // PaintRenderingContext2D_h