Flick feature to type hintText for the virtual keyboard.


BUG=323211

Review URL: https://codereview.chromium.org/97073002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238148 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238148