GitLab

Adding a call to clear text composition on tap gestures and also changing
the places where the text updates get sent back to the browser.

BUG=167127


Review URL: https://chromiumcodereview.appspot.com/11741036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@175712 0039d316-1c4b-4281-b951-d872f2087c98