This change adds support for suggested contacts (email addresses not in the contact
provider and received via email). The implementation creates a new separate
"extras" database (to avoid conflicts with future aosp changes). In the table
SuggestedContacts are stored every email address present in every email inserted
in the database.
This allow to display this contacts in the RecipientEditTextView when compose an email.
Suggested contacts are selected by account (only those ones received by that account).
This features is opt-out by default, but it can be activated in general settings by
choosing the suggested contact mode:
* none: Not active
* recents: Those received within the last 7 days
* all: All the suggested contacts
Change-Id: I156c3b1e2c4e4cff985a2183bc72b805bd596f3b
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
8210da8b50