Add support for new canvas ellipse method.

Source/core/html/canvas/CanvasPathMethods.h

Index: Source/core/html/canvas/CanvasPathMethods.h
diff --git a/Source/core/html/canvas/CanvasPathMethods.h b/Source/core/html/canvas/CanvasPathMethods.h
index 19fa93e09dcc84c236f4b33e0207db3bef6ef6b5..9681e54606830c13268ef5d0ace7805a1414c8a2 100644
--- a/Source/core/html/canvas/CanvasPathMethods.h
+++ b/Source/core/html/canvas/CanvasPathMethods.h
@@ -50,6 +50,7 @@ public:
     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, ExceptionCode&);
     void arc(float x, float y, float r, float sa, float ea, bool anticlockwise, ExceptionCode&);
+    void ellipse(float x, float y, float rx, float ry, float rot, float sa, float ea, bool anticlockwise, ExceptionCode&);
     void rect(float x, float y, float width, float height);
 
     virtual bool isTransformInvertible() const { return true; }