- MutexLocker needed by eventhandler_win.cc.

Review URL: https://codereview.chromium.org//467953002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39181 260f80e4-7a28-3924-810f-c04153c831b5
Add "-e polymer-superclass|DOMSuperClass" option to new_element.dart .

R=sigmund@google.com

Review URL: https://codereview.chromium.org//450323003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39182 260f80e4-7a28-3924-810f-c04153c831b5
"publishTo" -> "publish_to".

R=nweiz@google.com

Review URL: https://codereview.chromium.org//463203002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39183 260f80e4-7a28-3924-810f-c04153c831b5