Pass ActivityOptions back from finishing activity.

Adding an ActivityOptions parameter to convertToTranslucent provides
a mechanism for delivering these options to the activity that
launched the one that is returning.

Fixes bug 13032208.
Fixes bug 14469460.
Fixes bug 14597427.

Change-Id: I4115dd3c69de9d175f6df0498a6e964fca5eca29