This is a lot of code moves to make the asynchronous loading process
more explicit in nature:
- separate out code path for state restoration and intent resolving (no
need to over-write mAction now)
- separate out code path for draft loading and source message
loading
- fixes an issue where loading a message accidentally set the draft
message instead of the source message
- makes it possible to switch reply/replyall/forward since now
processing a source message doesn't do crazy things
Bug: 4375775
Change-Id: I5b3a7ac9ed031abe88f9358df9cd46408dd1e9f9
c7c0b6791c