Add a cache for the list of accounts.

Now the EmailActivity doesn't need to know about where the results
are coming from, but can get it from the AccoutnCacheProvider

Also, this CL has the start of the integration with the Gmail mail content
At app start up, the Gmail accounts are added to the cache of accounts.

Change-Id: Iffd91d42753f35b85720c9c0a6f0a5bb7be5c3e3
9 files changed
tree: eb0f20477e857d7bfda28196ff4a467bb9626332
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. CleanSpec.mk
  7. proguard.flags