Instead of using a simple ImageView for the icon, this uses the platform layout/action_bar_home which uses a custom class to position and resize the icon (and also supports the Up icon that we don't yet support). This ensures that the icon is properly positionned and sized like on devices. Change-Id: I57432afa82d257bb043247001320b368045d7f55
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.