Recents: Launch as Floating App

Ported from JB 4.3
Based on hybrid (Aaron) and Halo (Jesus) implementation

Signed-off-by: Alexis Rico <sferadev@gmail.com>
Change-Id: I84f4d3928af5c6ddd96a9a173a1c24e85ff606dd
Never load launcher on long press recents

Related: AOSPA-279

Change-Id: I7860d84c4eb36fe0f592dfc4d5b2769040abf182
Merge "Recents: Launch as Floating App" into kitkat
Merge branch 'kitkat' of https://github.com/AOSPA/android_frameworks_base into kitkat

Conflicts:
	core/java/android/provider/Settings.java
	telephony/java/android/telephony/ServiceState.java
	telephony/java/android/telephony/TelephonyManager.java

Change-Id: Ib06125388c8801c6fbbaf457f59a0adab34d172f
Add the calling package name to requestRouteToHost

The calling package name will be used to check if an application is a
system application when deciding if a route should be exempt from VPN
routing rules...

Bug: 12937545
Change-Id: I2c09c875fe9bb9685871a0a801ddcbb32fc17405
Update LinkProperties with MTU value

Use the MTU provided by network as part of Data Call Response.
If it is not present, use the static value from config file

Change-Id: I9d03cc9b355d09a93883fbf4ddc93fae0077641c
CRs-Fixed: 634747
Connectivity: Set TCP delayed ACK and User Configuration Flag

Provide a Mechanism to set tcp delayed ack settings from
Connectivity Service. The tcp_use_userconfig flag is set to
override the default tcp delayed ack configuration in tcp stack.
tcp_use_userconfig flag is reset when the TCP stack is required
to use default delayed ack settings. Currently the delayed ack
settings are overridden for Wifi and LTE networks only. Other
network types continue to use default delayed ack settings

Change-Id: I282ef0f6b6278b6efcef3870242974f7ee93e508
CRs-Fixed: 628139
services: change default sampling interval to -1

Change default sampling interval to -1 to avoid sampling to resolve
power consumption issue. Original implement will keep UE wake up every
12 minutes, which will cause issue when doing power standby test.

Change-Id: I018e22a44259e94bce87ceaf04ff523f035183f8