Remove the code that hides the title bar when the page finishes loading.
When the user double taps, if it did not result in changing the viewing
mode (i.e. on a mobile site), send a message to the client so we can
toggle the title bar's visibility. Required for a change to
packages/apps/Browser
Change-Id: I0040fd183ce5673a4069e943f38eb31599c0ca7d