Hardware Acceleration Test

Bug 4186680

Tests the View#isHardwareAccelerated and Canvas#isHardwareAccelerated
methods. Since this required the addition of android:hardwareAccelerated
to the application, I decided to make a separate stub to avoid affecting
existing tests.

Change-Id: Ia56d7f98ded41d64885c36b9d5131045bb2c8e61