commit 77177b171c483d485bdbff0178564394e8f57d0f
author Paul Westbrook <pwestbro@google.com> Tue Feb 07 15:23:42 2012 -0800
committer Paul Westbrook <pwestbro@google.com> Wed Feb 08 10:28:08 2012 -0800
tree 516f9c43c4d0ad02d66cd92124aad62603c5eadf
parent e7a2422ebff93a73340aceab4c006909bccca8a9

Start of restructuring to allow overlays include subset of providers

This allows us to build a UnifiedEmail that supports all providers
and use this base to build applications that only supports a subset
of the providers

Made AccountCacheProvider and ConversationProvider abstract.  This allows
the extending class to specify the authority that should be used (This allows
both UnifiedEmail and Gmail to be installed at the same time)

Change-Id: I31295f4630906e7182e423fcbb7b47c33ba4cd4f