prevent new more than one Resources for system

MIUI-28807

Change-Id: Id9f78270c020c51cdd8a91d02570e4c1c1c1a717
Signed-off-by: mochangming <mochangming@xiaomi.com>
Add code in zygote to suppport network firewall.

MIUI-28912

Change-Id: Id6066b57c26b708c28e34f374abed93d81c81e4b
Signed-off-by: mochangming <mochangming@xiaomi.com>
Remove some MIUI code in NetworkPolicyManagerService to support new NetworkAssistant mobile limit logic.

MIUI-30602

Change-Id: If1100eabc2b039aaa7906ecfb2c061c8b0dc32ef
Signed-off-by: mochangming <mochangming@xiaomi.com>
modify low memory notification style

Ref-Id: I6e7e89726d04ce963d2dece3f2ab24b2ee8fc2d9
Change-Id: I6f6722a7a4031712d595941c11c7bd40659ced34
Signed-off-by: mochangming <mochangming@xiaomi.com>
kill system application's backgroud process started by broadcast for more memory

MIUI-28628

Change-Id: I62e8c5f8c7e1c5453766cc4ffc0d59acace5a0bc
Signed-off-by: mochangming <mochangming@xiaomi.com>
The 3rd-party app can be deleted directlly even register as device manager.

MIUI-29021

Change-Id: Ife0d004a6d2a22f35589554d69d25e0fee82818f
Signed-off-by: mochangming <mochangming@xiaomi.com>