Remove redundant webgl conformance test expectations.

BUG=
TEST=
TBR=kbr@chromium.org

Review URL: https://codereview.chromium.org/175803002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252650 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252650
Move root_window.* to window_event_dispatcher.*

http://crbug.com/308843
TBR=sky@chromium.org

Review URL: https://codereview.chromium.org/174803002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252651 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252651