Limit the touch area for opening search to the right edge of the textfield.

Limit the touch area for opening search to the right edge of the textfield.

Now all single taps to the title bar will result in either
a search or opening the bookmarks picker, depending on whether
they were past the right edge of the textfield.

Fixes http://b/issue?id=2113429

Also move the lock icon in between the favicon and the url.  See
http://b/issue?id=2085847

Change-Id: I30447aa7517b6fc801d3cf34eff233db3a4ce635