Large canvas does not honor containing div's border radius.

BUG=137818

Review URL: https://chromiumcodereview.appspot.com/16688004

git-svn-id: svn://svn.chromium.org/blink/trunk@158258 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Throw 'SecurityError' when accessing {add,remove}EventListener cross-origin.

Currently, we return 'undefined' when calling {add/remove}EventListener
cross-origin. We should match Gecko's behavior by throwing instead.

BUG=17325

Review URL: https://chromiumcodereview.appspot.com/23844011

git-svn-id: svn://svn.chromium.org/blink/trunk@158259 bbb929c8-8fbe-4397-9dbb-9b2b20218538