Remove <canvas>

sky/engine/core/html/canvas/CanvasPathMethods.idl

-// Copyright 2014 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.
-
-// http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#canvaspathmethods
-
-[
-    NoInterfaceObject, // Always used on target of 'implements'
-] interface CanvasPathMethods {
-    // shared path API methods
-    void closePath();
-    void moveTo(unrestricted float x, unrestricted float y);
-    void lineTo(unrestricted float x, unrestricted float y);
-    void quadraticCurveTo(unrestricted float cpx, unrestricted float cpy, unrestricted float x, unrestricted float y);
-    void bezierCurveTo(unrestricted float cp1x, unrestricted float cp1y, unrestricted float cp2x, unrestricted float cp2y, unrestricted float x, unrestricted float y);
-    [RaisesException] void arcTo(unrestricted float x1, unrestricted float y1, unrestricted float x2, unrestricted float y2, unrestricted float radius);
-    void rect(unrestricted float x, unrestricted float y, unrestricted float width, unrestricted float height);
-    [RaisesException] void arc(unrestricted float x, unrestricted float y, unrestricted float radius, unrestricted float startAngle, unrestricted float endAngle, [Default=Undefined] optional boolean anticlockwise);
-    [RaisesException] void ellipse(unrestricted float x, unrestricted float y, unrestricted float radiusX, unrestricted float radiusY, unrestricted float rotation, unrestricted float startAngle, unrestricted float endAngle, [Default=Undefined] optional boolean anticlockwise);
-};