Fix heads up action bar switch handling for tablets.

Similar to commit 91f47b9f55467f1c8de4c6c732375d9f6f3c3942.

Change-Id: Ia4c5e8169ccd6786d2284eccec30397cac48d218
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0
Merge pull request #10 from androidarmv6/cm-11.0

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