Make the keyboard overlay handle close shortcuts in JavaScript code.
The aim of this change is to remove the dependency to chrome/browser/ui/views/accelerator_table.cc
as a preparation for moving the keyboard overlay code to src/ash.
BUG=124222
TEST=Manually checked that the keyboard overlay is closed with shrotcut keys.
Review URL: https://chromiumcodereview.appspot.com/10434012
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@138903 0039d316-1c4b-4281-b951-d872f2087c98
12 files changed
