Added the CanvasImageSource interface, which all types that a canvas can draw

tools/dom/src/CanvasImageSource.dart

Index: tools/dom/src/CanvasImageSource.dart
diff --git a/runtime/vm/libdart_dependency_helper.cc b/tools/dom/src/CanvasImageSource.dart
similarity index 81%
copy from runtime/vm/libdart_dependency_helper.cc
copy to tools/dom/src/CanvasImageSource.dart
index ccf26c829687f4cbbbe80f5c9a074d075613a2be..08881e3b2e9ea6ad6440117a4b1a91fbe374f505 100644
--- a/runtime/vm/libdart_dependency_helper.cc
+++ b/tools/dom/src/CanvasImageSource.dart
@@ -2,7 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-int main(int argc, char *argv[]) {
-  return 0;
-}
+part of html;
 
+abstract class CanvasImageSource {}

[blois, 2013/03/14 16:24:10]

Add a simple doc comment

[Andrei Mouravski, 2013/03/15 00:08:52]

Done.