Implement input type=color UI
BUG=92608
TEST=
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=126889
Review URL: https://chromiumcodereview.appspot.com/9203001
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@127656 0039d316-1c4b-4281-b951-d872f2087c98