Test: ran 'make doc-comment-check-docs' after removing @hide tag.
Change-Id: I1c3492e8c302b9a6222b5400e71ccbabaaa372a3

Test: build
Change-Id: I36baae35cc8196e3fa2fc9f9bdda4219ffaf863d

* changes:
  libandroidfw: Improve performance of AssetManager2
  libandroidfw: Add ApplyStyle and SetConfiguration benchmark
  Make idiomatic use of ApkAssets and AssetManager
  Replace AssetManager with AssetManager2 implementation

Test: will add cts later
Change-Id: I0b906fab82fca89b85bc0c7fbe06078115d43eec

Bug: 69916639
Test: atest tests/servicestests/src/com/android/server/NetworkPolicyManagerServiceTest.
Change-Id: I64e4459004cf0cafd2c63296413c18455802bb84

Empty senders were treaded badly before, leading to empty
space and a bad layout. Now the conversation title is taken
as the name of the other sender.

Bug: 63708826
Test: add message with empty senders, observe layout
Change-Id: I6d3ce84c421ddbcd55260f34e8ff5bf46437c2b6

am: 75774be5

Change-Id: I71a313e35f20c51403227523060914495e67c3bc

am: 0e32a62c

Change-Id: I5b2d1d756daf1fabd8d42b9161de6a63d8989302

am: cbbed8ee

Change-Id: Id6a664fd5ad8c182468b742e810e65afee248ad5

am: cdeb50aa

Change-Id: If60b58f95707bab3ae89050234226d54386398e8

Enabling/disabling the connected mac randomization toggle in developer options will change Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLE, which the wifi framework can look at to decide whether or not to randomized mac addresses. Also added descriptions for the toggle in developer options.

Bug: 67908229
Bug: 71548421
Test: manual testing of checking that the option correctly displays and
logs to check that the toggle correctly changes values.
Change-Id: I48a2dc34d772b0e4ce7637df904b274c9fe1218f

am: 174df238

Change-Id: I2c0dd5ccd8c8a165b568563051ad42dba6082792

am: 1683b696

Change-Id: I72fe99d5e662a6a154f7b2d970c5926ee696e541

am: 54438137  -s ours

Change-Id: I3a0ab4b34f7e62e970e81a74210e9b3ca3677a66

am: d6d448f6

Change-Id: I085b0d23182696ba6ec639e1f48ec14ed010fecd