Themes: Pass resource IDs instead of bitmaps [2/2]

Change-Id: Ibd89d7fdcdd2ac3719f5b8a469b8b9f361760033
Use getThemedResourcesForApplication for icons

Since we no longer pass bitmaps around in ComposedIconInfo we need
to make sure the icons are actually attached to the resources in
order to retrieve the drawables for the composed icons.

Change-Id: I52cda714d54ce1c8b06dff1376c2ca117d4c443a