Based on the VZW requirement, phone should be still in ECM mode in 2nd emergency call.
but in the current phone call, if a 2nd emergency call is originated, ECM mode will exit.
For fixing this problem, the coding design is as below:
1. In framework, canceling the first ECM timer immediately upon the origination of the
2nd E911 call, and restarting a new timer when the 2nd E911 ends.
2. Framework needs to syncronize the timer with phone app by sending notification to phone app to
inform timer is canceled or re-started, since phone app needs to show how much ECM time left
on the status bar.
3. In phone app's emergency callback mode service, the timer in this service will be canceled
when it receives the timer cancel notification from framework; the timer will be restarted
once it receives timer restart notification from framework.
This also refactors ConnectivityService a bit towards supporting multiple simultaneous connections by making each a seem like a seperate Network with it's own stateTracker, etc.
Also adds tracking of process death to clean orphaned startUsingNetworkFeature features.
During the time of OTA activation screen startup, the app needs
to get MIN by calling getCdmaMin(). The issue in current code is that
OTA app calls getCdmaMin() before framework gets MIN data from lower
layer.
To fix this issue, framework will be providing the following new APIs
to applications for checking if MIN data is ready:
1. isMinInfoReady():
Check if mMin variable in getCdmaMin() has been assigned a non-null value.
2. registerForSubscriptionInfoReady():
Apps uses this API to register for notification.
3. unregisterForSubscriptionInfoReady():
This API is used by apps to unregister notification.
Framework will be sending out the notification in the following situations:
1. when mMin is assigned a non-null MIN value;
2. When app calls register API and MIN is ready.
The changes from 090602 update frameworks/base to support 3way calling
and call waiting.
The changes from 090603 completed the CdmaInformationRecords class
but the original changes submitted has been simplified, toString added
and a bug fixed where the notifications where not being handled properly.
The changes from 090605 added Prl Version, apn fixes.
