* Optimize contact loading from system
* Cache results in LocalService
* Listen for system contact change to reload when needed
* Cache standard-size (40dp) contact pictures in LocalService
* Common thread pool to load contact pictures in LocalService

Issue: #78218
Change-Id: I61e28df8d020166933cc4fe24a207b0a760036b2

Adrien Béraud authored 9 years ago and Guillaume Roguez committed 9 years ago

Change-Id: I6d65993a0bbed0ac680d6fe5980aae0fb931116e

Adrien Béraud authored 9 years ago and Guillaume Roguez committed 9 years ago

Refs #75022

Change-Id: I9db3858c1ab365de8572323bc19ef630da9774fd

Refs #74812

Change-Id: I2587debb5e4c1584f94370edb36ad87b28fc6c92

Refs #69972
Refs #70084

Change-Id: I152468471b02ff3b118c083cd285786e9e286fcc

Mimicks vlc-android architecture

Integration of new security features implies modifications in call handling.
By default, when handling a call,  a SipCall object is created, but if ZRTP hooks
are activated, the call is dynamically subclassed, and becomes a SecureSipCall.

Refs #40939

SipCall keeps track of its security state, and store its SAS if needed.
This commit also introduce two new Fragments wrappers, for accounts and calls.
These wrappers reduce code duplication between fragments requiring hooks on daemon
signals.

* #25117 Refactor and stability

* #26250 design updated

* #26115 Unattended transfer working

Attended transfer, hold, hangup working