CanvasPathMethods should be shared with CRC2D and Path2D

Source/core/html/canvas/CanvasPathMethods.idl

Index: Source/core/html/canvas/CanvasPathMethods.idl
diff --git a/Source/core/html/canvas/CanvasPathMethods.h b/Source/core/html/canvas/CanvasPathMethods.idl
similarity index 63%
copy from Source/core/html/canvas/CanvasPathMethods.h
copy to Source/core/html/canvas/CanvasPathMethods.idl
index 2f0160ea1bfa01295941fb51c547dfa9fb7094a2..a6de85b6a45d4ee701c9ae1b831ae567d9eb8b80 100644
--- a/Source/core/html/canvas/CanvasPathMethods.h
+++ b/Source/core/html/canvas/CanvasPathMethods.idl
@@ -1,6 +1,5 @@
 /*
- * Copyright (C) 2006, 2007, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
- * Copyright (C) 2012, 2013 Adobe Systems Incorporated. All rights reserved.
+ * Copyright (C) 2014 Samsung Electronics, Inc.  All rights reserved.

[Inactive, 2014/03/09 04:26:37]

Please use this license for new files:
http://www.chromium.org/blink/coding-style#TOC-License

  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -26,37 +25,17 @@
  * SUCH DAMAGE.
  */
 
-#ifndef CanvasPathMethods_h
-#define CanvasPathMethods_h
-
-#include "platform/graphics/Path.h"
-
-namespace WebCore {
-
-class ExceptionState;
-class FloatRect;
-
-class CanvasPathMethods {
-public:
-    virtual ~CanvasPathMethods() { }
+[
+    NoInterfaceObject
+] interface CanvasPathMethods {
 
     void closePath();
     void moveTo(float x, float y);

[Inactive, 2014/03/09 04:26:37]

A lot of arguments were optional for the methods on Path and now are mandatory
(as per spec). Could you please confirm that this matches the behavior of other
browsers?

     void lineTo(float x, float y);
     void quadraticCurveTo(float cpx, float cpy, float x, float y);
     void bezierCurveTo(float cp1x, float cp1y, float cp2x, float cp2y, float x, float y);
-    void arcTo(float x0, float y0, float x1, float y1, float radius, ExceptionState&);
-    void arc(float x, float y, float radius, float startAngle, float endAngle, bool anticlockwise, ExceptionState&);
-    void ellipse(float x, float y, float radiusX, float radiusY, float rotation, float startAngle, float endAngle, bool anticlockwise, ExceptionState&);
+    [RaisesException] void arcTo(float x1, float y1, float x2, float y2, float radius);
     void rect(float x, float y, float width, float height);
-
-    virtual bool isTransformInvertible() const { return true; }
-
-protected:
-    CanvasPathMethods() { }
-    CanvasPathMethods(const Path& path) : m_path(path) { }
-    Path m_path;
+    [RaisesException] void arc(float x, float y, float radius, float startAngle, float endAngle, [Default=Undefined] optional boolean anticlockwise);
+    [RaisesException] void ellipse(float x, float y, float radiusX, float radiusY, float rotation, float startAngle, float endAngle, [Default=Undefined] optional boolean anticlockwise);

[Inactive, 2014/03/09 04:26:37]

So this method is now exposed on Path as well. This is a web-exposed behavior
change. How do other browsers behave?

 };
-}
-
-#endif