GitLab

This CL contains
 - Make ProcessKeyEvent asynchronous and add unittest for asynchronous handling.
 - Add missing signal (CommitText).
 - Fix wrong signal name (UpdatePreedit -> UpdatePreeditText).

BUG=None
TEST=ran chromeos_unittests


Review URL: https://chromiumcodereview.appspot.com/10835003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@148725 0039d316-1c4b-4281-b951-d872f2087c98