Revert 127146 - Add Extension Keybinding test for page actions and port the PageAction keybindings to GTK.

Failed on ChromeOS bots, even though it passed on the try bots... :/

BUG=27702
TEST=KeybindingApiTest.PageAction
Review URL: https://chromiumcodereview.appspot.com/9693047

TBR=finnur@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9705097

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@127149 0039d316-1c4b-4281-b951-d872f2087c98
6 files changed