As of MNC stock widgets will pass a size in UNSPECIFIED MeasureSpec
values as a hint of the container size. This lets things like list items
size themselves at 1/3 the size of their container.
This breaks assumptions in a few existing applications, so maintain the
old expectation of 0 size in UNSPECIFIED MeasureSpecs for apps targeting
older SDK versions.
Bug 20975083
Change-Id: Ic7318e88854e00d96852dde2c0e10376b42bf77f
d5dbf4b2a0