Custom Elements: Complete HTMLConstructor Algorithm

third_party/WebKit/Source/core/html/HTMLCanvasElement.idl

 /*
  * Copyright (C) 2006, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
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 // https://html.spec.whatwg.org/#the-canvas-element
-
+[HTMLConstructor]
 interface HTMLCanvasElement : HTMLElement
 {
     // Note: Due to dependecies on modules, getContext is defined in a partial
     // interface in HTMLCanvasElementModule.idl
 
     // FIXME: width and height should be unsigned long.
     [RaisesException=Setter, CEReactions] attribute long width;
     [RaisesException=Setter, CEReactions] attribute long height;
 
     // Note: The arguments argument is variadic in the spec, but not here as
     // only one extra argument is actually used.
     // FIXME: type should not have a default value.
     [RaisesException] DOMString toDataURL(optional DOMString type = null, optional any arguments);
 
     [RaisesException] void toBlob(BlobCallback _callback, optional DOMString type = null, optional any arguments);
 };