[TIMOB-10824] Use LayerDrawable in ActivityWindow
[TIMOB-10824] Add support for backgroundRepeat
[TIMOB-10824] Code refactor
[TIMOB-10824] Respect opacity. If none defined use 1f
Merge pull request #3804 from vishalduggal/timob-10824-30X

[TIMOB-10824] 3_0_X Use LayerDrawable in ActivityWindow