Adam Powell 6192b07bdc Treat empty string as title-set in ToolbarWidgetWrapper
If a developer explicitly sets the empty string as the title of a
Toolbar that is used as an action bar via Activity#setActionBar, don't
overwrite it with the window title. This clears up a nonintuitive
behavior when explicitly clearing the title of a toolbar.

Bug 17510951

Change-Id: I183c2ca57d3bd16ae1f89bb7daa2cdf086189138
2014-09-15 16:36:01 -07:00
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