NetworkScore, IOnCompleteListener should be in the Connectivity scope,
as they are supporting classes for the ConnectivityManager APIs.

Bug: 181512874
Test: m
Change-Id: I6dc40a80e0bf5f86f5625b657b01eba969d41fcf

The library will be included in the connectivity module APEX when
migrating its sources out of framework-minus-apex.

Bug: 171540887
Test: m
Change-Id: I1595521eaced6e6997c076bb56b06ffdd22a4fa0

ConnectivityManager and NetworkAgent do not share their handler with any
other component, so there is no reason to use addresses that do not
overlap. Protocol.BASE_* was written to allow for interaction "between
different StateMachine implementations without a conflict", but the
classes do not use StateMachine, and they do not have such interactions.

Bug: 177046265
Test: atest FrameworksNetTests
Change-Id: I18c341d4a2c01cb9559d682a9ad1ff259e6b5855

TCP_DEFAULT_INIT_RWND setting has never been set before, CS
always read the tcp receive window size from
net.tcp.default_init_rwnd then set to net.tcp_def_init_rwnd.
Thus, remove the unnecessary setting from CS, and the property
doesn't need to set either. Because aosp/1639922 migrate the
properties, the default value has been set to kernel already.

Bug: 182538166
Test: atest FrameworksNetTests
Change-Id: I13e175ab4dea72446af7df4a25e307e5934fa813

This fixes a merge conflict with downstream branches due to an
incomplete cherry-pick.

Bug: 171540887
Test: m

Change-Id: I27a8f20f1a1d83b472700648f3f5a68413a76ac3
Merged-In: I7432fe4c87cd3cab04dcb6185c9a4f3f84376549

This class is used to manager the connectivity module related
settings.

Bug: 182538166
Test: make
Change-Id: I5e02e719ce0d305d7c8a45fefb850d7b981f07eb

Bug: 172183305
Test: m
Change-Id: I2f1b44cf2a362b42f052ea5d34a5cec03d46e661

* changes:
  Remove per-user preference when the user is removed
  Expose the enterprise per-profile networking API.
  Implement setNetworkPreferenceForUser.
  Public API for per-profile network preference.
  Add tests for setNetworkPreferenceForUser

Test: m -j doc-comment-check-docs
Bug: 175662146
Change-Id: Ie67dd2f4f8d973de37bc64a03908d7cbb7c2b7ad

This is done by:
  1. In requestNetwork, provide a basic permission check.
  2. rematchNetworksAndRequests: no change, since non listen
     requests will be automatically processed to track
     best satisfying network.
  3. applyNetworkReassignment: no change, since non-request
     will not be sent to factories.

Test: atest ConnectivityServiceTest#testRegisterBestMatchingNetworkCallback_noIssueToFactory
Test: atest ConnectivityServiceTest#testRegisterBestMatchingNetworkCallback_trackBestNetwork
Bug: 175662146
Change-Id: I8cf4ab334df6812d84cdda160e9b72b6f54062af

Test: new test for this
Change-Id: I335e82e29ec8f4c8da9def8b40153858cfd5bacb

Also unify the listener for Oem settings, which have
never been released as public API (it is slated to be
released in S).

Test: FrameworksNetTests
Change-Id: I84ba363dd0ec03871c37b1c3a31e5557d9aa12e7

Test: FrameworksNetTests
Change-Id: I8f18083b5857289892fe8adea5f5ea3f5dbe0809

This patch defines the API, but does not make it public
yet as there is no implementation yet.

Test: none so far
Change-Id: I854a952dfe35cc80847eb62f522b1667b8e9b8a0

Test: this
Change-Id: I00e2344118408da307439a0a993eb67cb17bf777

Context is more useful than ContentResolver, it can provide more
information if we want to change the behavior in the future.

Bug: 172183305
Test: atest FrameworksNetTests
Change-Id: I5702c7d74b862a76558b94f1abe2c6df9eb7f097
Merged-In: I5702c7d74b862a76558b94f1abe2c6df9eb7f097

NETWORK_STACK_UID check was introduced by aosp/1134635, and it
assumed that wifi factories/agents will be running on the network
stack process, but it didn't eventually. It runs in the system
server instead. So remove this check.

Bug: 170598012
Test: atest FrameworksNetTests
Change-Id: Ie11268738e364e252f18876f7a4a0dc064ca8b9c

networkAttributes is a legacy configuration that is now only used to
configure which legacy type networks are supported, and what the restore
timer is for that network type, for the deprecated
startUsingNetworkFeature API.

Use a dedicated resource for the restore timers, and build supported
legacy network types using hasSystemFeature for wifi, wifi p2p,
bluetooth, proxy types, and TelephonyManager.isDataCapable for the
mobile types.

Bug: 146206136
Test: atest FrameworksNetTests
Change-Id: I3a771d3de6c5e912f18d2834e3a50af797ac4991

Connectivity is becoming a mainline module in S but mainline
modules are not allowed to use non-formal APIs. Thus, replace
internal okhttp APIs to stable libcore APIs which are created for
using HttpURLConnectionFactory.

Bug: 182238821
Test: atest FrameworksNetTests
Change-Id: I56ba1b9e6e94f9c6519c3f1c8f0c5993fccbe185

* changes:
  Make PacProxyService be a system service
  Revert^2 "Refactor setCurrentProxyScriptUrl to a void method"

* changes:
  Using jniThrowErrnoException in android_util_Process
  Using jniThrowErrnoException in android_os_SharedMemory
  Using jniThrowErrnoException in android_net_NetworkUtils

Bug: 172183305
Test: N/A
Change-Id: Id274295d6c8c97d3014214f875168ff968f79bb6

As attested by numerous TODOs in the code, a new way of
representing network quality and policy is needed instead
of an int.

An int representing the quality of the network requires
all parties using it to know how all other parties are
using it, and implementation details about the decision
algorithm. For all intents and purposes, the selection
is left to individual network factories who try to
achieve a desired result while piecing together all
possible states of the system.

As the number of such cases and desires increases, this
becomes both intractable and unmaintainable. Indeed, at
this time in the codebase nobody can really predict exactly
how a given change in score will affect selection across
the board, and it is essentially impossible to figure out
the behavior of network selection by inspecting the code
because the moving parts are scattered throughout the
entire codebase.

Having an object encapsulating policy and quality values
will let us centralize the selection and make it again
possible to maintain without knowledge of all behaviors
of all network factories. It will also provide better
guarantees of respecting policy, and allow bugfixes that
were not possible before because they'd touch too many
parts of the code.

Test: FrameworksNetTests FrameworksWifiTests NetworkStackTests
Change-Id: I3185a6412b9b659798faf0c6882699e9c63cc115