cros: Saml flow update CL follow up.

Follow up change for r248893. This CL properly restores UI states for
fatal error screen to be more future proof (e.g. when we decide to show
account picker screen after it).

BUG=330206

Review URL: https://codereview.chromium.org/146683006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249375 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249375
views: Remove AcceleratorHandler

The windows implementation in accelerator_handler_win.cc is not longer used, and
the aura implementation in accelerator_handler_aura.cc is equivalent to the
default message-pump. So remove AcceleratorHandler altogether.

R=sky@chromium.org

Review URL: https://codereview.chromium.org/156223002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249376 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249376