Allowing overriding conversation list load limit.

b/7280077

One issue we saw was that if the conversation was not
in the initial 50 conversations, we would get punted
out of the conversation list. Now we have an additional
extra in ACTION_VIEW intents that allow ignoring the
limit for the first load of the ConversationCursor.

Change-Id: I737c45e122df4dda7c63794ddc7036be61d5ebd4
4 files changed