The API contract for createLaunchEmergencyDialerIntent indicates that
the return value is @NonNull, however the code clearly can return a null
value if either:
1. Telecom is unavailable.
2. There is a remote exception.

Since the API just returns a new ACTION_EMERGENCY_DIAL intent with the
package name of the emergency dialer (from Telecom string resources), we
can provide a reasonable fallback behavior by just returning a new
ACTION_EMERGENCY_DIAL intent with no targeted package.  The system will
still launch the emergency dialer in this case, but if there is a scenario
where multiple emergency dialers are installed on a device, the AOSP one
may get launched instead.  This is, however, better than there being NO
emergency dialer launched.

Test: Comment out call to Telecom service and verify the AOSP emergency
dialer still launches.
Bug: 152187752
Fixes: 155097434
Merged-In: I1665d456dace8e41cc035e792f319d98dd07219c
Change-Id: I06f8a5bebace5b22822f7bb714e14915126b904f

Bug: 161483894
Fix: 161483894
Test: N/A
Change-Id: I0c916a89591ac88475d25c87f9c08eb0a3dd3147
Merged-In: I0c916a89591ac88475d25c87f9c08eb0a3dd3147

See https://source.android.com/setup/contribute/respectful-code for reference

#inclusivefixit

Bug: 161896447
Test: NA (Comment only)

Change-Id: Id4f72f98d5a5def26d42d112aeb1b67217d38af0

If dhcp server is obsolete, explicitly stop it to shut down its thread.

Bug: 161418295
Test: atest CtsTetheringTest
Change-Id: Ic5b876bd23711ec8d832879a7baee0495246b218

See https://source.android.com/setup/contribute/respectful-code for reference
 
Test: Presubmit
Bug: 161896447

Change-Id: I7f7dae2bfbcf0fe98f1a716647cb17008495f3cf

Test: build
Merged-In: Ie639f57f86c2573cd5e06a1fa9397487f4b3f235
Change-Id: Ie639f57f86c2573cd5e06a1fa9397487f4b3f235

See https://source.android.com/setup/contribute/respectful-code for reference
 
Test: Presubmit
Bug: 161896447

Change-Id: I02fd71bce7deb031a3699ce79121ea4c424fac61

See https://source.android.com/setup/contribute/respectful-code for reference
 
Test: Presubmit
Bug: 161896447

Change-Id: I7fb8abdb8e3ca65d29a40bd7f6f090aefaa0765f

See https://source.android.com/setup/contribute/respectful-code for reference
 
Test: Presubmit
Bug: 161896447

Change-Id: If0192e33d6d063c7dfda72af1509a3fbd16e3044

See https://source.android.com/setup/contribute/respectful-code for reference

Change-Id: Iaada83171b81a798db1e7c413e8e0c4d1f3d9a55
Test: Presubmit
Bug: 161896447

See https://source.android.com/setup/contribute/respectful-code for reference.

#inclusivefixit

Bug: 161896447
Test: None
Change-Id: I1b24350f4e4528ff40ef8d9065a2c5c4251c5059

Stop-gap measure to allow TwilightService to fork
the implementation of CalendarAstronomer or use its own
implementation, and remove the @CorePlatformApi.

Bug: 139480281
Bug: 134508682
Test: m droid
Change-Id: Id75fefe4f66a386a1c072f8b2e0bdbd0f642bb4b

PermissionMonitor check permission by each package name but only
update the uid permission to netd. It's better to check
permission by uid directly. Thus, use
ActivityManager#checkUidPermission to check permissions for each
uid.

Bug: 132784544
Test: atest FrameworksNetTests
Change-Id: I057d34383b4dc408b2773e4c6b146774ba0c5eb2

See https://source.android.com/setup/contribute/respectful-code
for reference.

Bug: 161896447
Test: m
Change-Id: I6c3c03c0c2d1302af6d5245486823c13a3432900

Avoid recording negative data by doing integer-based
math as much as possible, but switch to double-based
math if we detect that we'd end up causing an overflow.

Test :

    - Builds, Boots
    - High data throughput scenarios
    - NetworkStatsHistoryTest, NetworkStatsCollectionTest,
      NetworkStatsTest

Bug: 119527458
Change-Id: I55d4aa649bea3ae201ad513074ff2b71cb918dad

No change to logic, only docs. This removes non-inclusive terminology
("whitelist") from our API javadoc, with the exception of references to
setSafeBrowsingWhitelist() (which we plan to deprecate soon, in favor of
an inclusively named API).

This rephrases one paragraph to be a bit clearer as well.

Bug: 160928306
Test: m offline-sdk-docs -j4
Change-Id: If249be8a70b01c01390ebfeb418fd7c5e119f1f2