* changes:
  Add ION usage into dumpsys report and account ION pools as kernel cache
  Improve cached kernel memory accounting using meminfo KReclaimable field
  Add JNI API to query sizes of ION heaps, pools and mapped part of the heaps

Test: manual
Bug: 136194151
Change-Id: I5c9732062e5123539343843fb9a9ae3ca7111890
Merged-In: I5c9732062e5123539343843fb9a9ae3ca7111890

Fix issue introduced by commit d32a94d2 where in case of an
A2DP disconnection, the device was disconnected then reconnected.

Bug: 146544156
Test: disconnect A2DP device, check it's not listed in dumpsys media.audio_policy
Change-Id: Ic5f9387194d92a7a050e7a295a13a9ae18cd96ce

Report ION pools, ION mapped and unmapped heap sizes. Account ION pools
as kernel reclaimable memory which removes them from the "Lost RAM"
category.

Bug: 138148041
Test: dumpsys meminfo
Change-Id: Ica3e1c3f73656b1b937f2fc58c18e0157e02bf57
Signed-off-by: Suren Baghdasaryan <surenb@google.com>

KReclaimable field from /proc/meminfo is designed to represent total amount
of memory that kernel can reclaim when needed. This includes reclaimable
memory consumed by slab and reported in SReclaimable field as well as ION
pools. By using KReclaimable instead of SReclaimable we will account for
ION pools currently reported under "Lost RAM" category in dumpsys meminfo
report.

Bug: 138148041
Test: dumpsys meminfo
Change-Id: Ifdea234d05639db93074ab598b81db5ff5b43612
Signed-off-by: Suren Baghdasaryan <surenb@google.com>

Provide means for system_server to query ION memory usage. The new API
allows to get total size of ION heaps, pools and part of ION heaps that
is mapped into user space.

Bug: 138148041
Test: dumpsys meminfo
Change-Id: I6d76d534bbab5ee1646e8e3e3fe5210dcf76bc23
Merged-In: I6d76d534bbab5ee1646e8e3e3fe5210dcf76bc23
Signed-off-by: Suren Baghdasaryan <surenb@google.com>

Extract a simple wrapper around ArrayMap called "ArrayMapWithHistory",
with associated tests. TimeDetectorStrategyImpl and
TimeZoneDetectorStrategy were duplicating some data structure logic.

ArrayMapWithHistory works the same as ArrayMap, but there is a (mostly
hidden) history of the values for each map entry. This is useful for
debugging.

A second class, ReferenceWithHistory, has been included to support the
ArrayMapWithHistory class and for use when extending the time / time
zone detector strategy implementations: this will be useful as
additional sources like GNSS / NTP are added to time detector, and
geo-location are added to time zone detection.

Bug: 146563025
Bug: 140712361
Test: atest com.android.server.timedetector
Test: atest com.android.server.timezonedetector
Change-Id: Ia6195cb628679a6a32c0118d2921e699514eed7d

Bug: 135956699
Test: Manual
Change-Id: Ib12ff430c5781044ec0b36ac9b930224fc410c95
(cherry picked from commit 49b3b168)
Merged-in: Ib12ff430c5781044ec0b36ac9b930224fc410c95

Test: build
Change-Id: Ia17176fc4bfd099db5faad2b5f9b9d99a3407d2d

Test: treehugger
Change-Id: I61366a576e75137cef2b6607cd860cfd16c23869

This reverts commit a5264903.

Reason for revert: Droidcop-triggered revert due to breakage https://android-build.googleplex.com/builds/quarterdeck?branch=git_master&target=sdk_phone_armv7-sdk&lkgb=6083299&lkbb=6085371&fkbb=6083313, bug b/146533269

Change-Id: Ie5b031d7b277cf0e09b0a9776b26bf74f5f69e70

on go device when try to get timestamp, the value over-followed sometimes
as a result, GtsIncidentManagerTestCases would fail due to a negative timestamp

Bug: 142513252
Change-Id: I7d5e701bb8bf4e788a718e093681f97b95cb8551

".apex" is easy to confuse.
Rename as below:
apex: com.android.tethering.apex -> com.android.tethering
apk: com.android.tethering -> com.android.networkstack.tethering

Bug: 146471733
Test: build

Change-Id: I2c7647abb996539a3af6cfe0e0214a5e8927c0d6
Merged-In: I2c7647abb996539a3af6cfe0e0214a5e8927c0d6

The module framework is now a build-only library whose purpose is to
provide hidden APIs from the non-updatable part of the platform and APIs
from the modules. Merging updatable_media_stub to framework, like the
stub libraries from other modules.

Bug: N/A
Test: m

Exempt-From-Owner-Approval: cherry-pick from internal

Merged-In: Ib627523aab44b7c41d27d70c6ae34cda5dc2e27c
(cherry picked from commit 92721349)
Change-Id: Ib627523aab44b7c41d27d70c6ae34cda5dc2e27c

Such checks uses old libvintf to parse new VINTF metadata, which is not
supported. The check is now moved to OTA package build time, so there is
no need to check it on the device.

Test: builds
Bug: 139300422
Change-Id: Ifaec06b5298f698958e5727316bf661d1960d0aa

With new KReclaimable stat available in /proc/meminfo include it in
getMemInfo results so that it can be accounted in dumpsys meminfo reports.

Bug: 138148041
Test: dumpsys meminfo
Change-Id: Id475fcc0a63c6fc12ea64e08cec5cd24c83848a5
Signed-off-by: Suren Baghdasaryan <surenb@google.com>

Test: manual
Bug: 135929421
Change-Id: I63043646bb96b8543849c617ce1ccd41a558f24d