The height of a layout should be zero if it is assigned a layout_weight.
This way, the layout is measured only once and prevents spurious errors.
Bug: https://code.google.com/p/android/issues/detail?id=58398
Change-Id: If49a7480e5eb82cb86780e00f2f5b65ee053fc2a
(cherry-picked from 9e5e993c79)
Layoutlib is a custom version of the android View framework designed to run inside Eclipse. The goal of the library is to provide layout rendering in Eclipse that are very very close to their rendering on devices. None of the com.android.* or android.* classes in layoutlib run on devices.