Remove the ExtensionAction::Appearance enum since only the visible and invisible states are used anymore.

BUG=302083

Review URL: https://codereview.chromium.org/139903017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248947 0039d316-1c4b-4281-b951-d872f2087c98
Files.app: Remove unused ctrl key flag.

The flag is no longer used.
The CL removs the flag and the lines to updated it.

BUG=none
TEST=none

Review URL: https://codereview.chromium.org/153833005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248948 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248948