Bug: 19821830
Cherry-pick of ba6adf66d3c44c0aa2fd8a224862ff1901d64300
Cherry-pick of e70c5754d01f2ab0ff47ea3eabaa88aca5ed2a36
Change-Id: Id342fa0ab345f204bec58acf45ce72f6de950cfb
Bug: 16712006
Initial work towards benchmarking HWUI systems
Currently this will just create a screen full of
"cards" to simulate a high load scenario for
shadows and clipping
Change-Id: Ie9f9a9570844e136db8053e8fc62fe06cb922a5f