Fix broken json formatting in ui's LayerDebugInfo

Single quotes should have been double quotes; comma should have been a colon.

Facepalm.

TEST=NOT_REACHED in LayerImpl::AsValueInto
BUG=336130

Review URL: https://codereview.chromium.org/143493003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245942 0039d316-1c4b-4281-b951-d872f2087c98
Update svn:ignore that accumulated due to new DEPS entries.


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245943 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245943