prevent new more than one Resources for system

MIUI-28807

Change-Id: I6fe0aa51955534264d619289044aead496d83d6e
Signed-off-by: mochangming <mochangming@xiaomi.com>
Add code in zygote to suppport network firewall.

MIUI-28912

Change-Id: If5b1c1c909f3f3f2d75f6a1f20dcce1ff2fe71db
Signed-off-by: mochangming <mochangming@xiaomi.com>
Remove some MIUI code in NetworkPolicyManagerService to support new NetworkAssistant mobile limit logic.

MIUI-30602

Change-Id: I84d273a7aecc8ec0a9bf1608bb9665ffc3319dff
Signed-off-by: mochangming <mochangming@xiaomi.com>
modify low memory notification style

Ref-Id: I6e7e89726d04ce963d2dece3f2ab24b2ee8fc2d9
Change-Id: I391219267cbaadaef9eae720bb2f39b9dc03929b
Signed-off-by: mochangming <mochangming@xiaomi.com>
kill system application's backgroud process started by broadcast for more memory

MIUI-28628

Change-Id: I5b1c730712c039da2073f1fc8f37f167279717ce
Signed-off-by: mochangming <mochangming@xiaomi.com>
The 3rd-party app can be deleted directlly even register as device manager.

MIUI-29021

Change-Id: If43cb76d9d7e37d6dcc2f710d928076eac577e30
Signed-off-by: mochangming <mochangming@xiaomi.com>