Merge "audioservice: fix persistency for volume per attributes"
diff --git a/api/current.txt b/api/current.txt
index c613aae..6cd7d6b 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -29160,7 +29160,7 @@
     method @NonNull public android.net.NetworkCapabilities setLinkDownstreamBandwidthKbps(int);
     method @NonNull public android.net.NetworkCapabilities setLinkUpstreamBandwidthKbps(int);
     method @NonNull public android.net.NetworkCapabilities setNetworkSpecifier(@NonNull android.net.NetworkSpecifier);
-    method @NonNull public android.net.NetworkCapabilities setOwnerUid(int);
+    method public void setOwnerUid(int);
     method @NonNull public android.net.NetworkCapabilities setSignalStrength(int);
     method public void writeToParcel(android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.net.NetworkCapabilities> CREATOR;
@@ -43685,7 +43685,7 @@
     field public static final int DIRECTION_INCOMING = 0; // 0x0
     field public static final int DIRECTION_OUTGOING = 1; // 0x1
     field public static final int DIRECTION_UNKNOWN = -1; // 0xffffffff
-    field public static final int PROPERTY_ASSISTED_DIALING_USED = 512; // 0x200
+    field public static final int PROPERTY_ASSISTED_DIALING = 512; // 0x200
     field public static final int PROPERTY_CONFERENCE = 1; // 0x1
     field public static final int PROPERTY_EMERGENCY_CALLBACK_MODE = 4; // 0x4
     field public static final int PROPERTY_ENTERPRISE_CALL = 32; // 0x20
@@ -43774,7 +43774,8 @@
     method public final java.util.List<android.telecom.Connection> getConferenceableConnections();
     method public final int getConnectionCapabilities();
     method public final int getConnectionProperties();
-    method public final long getConnectionTime();
+    method public final long getConnectionStartElapsedRealtimeMillis();
+    method @IntRange(from=0) public final long getConnectionTime();
     method public final java.util.List<android.telecom.Connection> getConnections();
     method public final android.telecom.DisconnectCause getDisconnectCause();
     method public final android.os.Bundle getExtras();
@@ -43804,8 +43805,9 @@
     method public final void setConferenceableConnections(java.util.List<android.telecom.Connection>);
     method public final void setConnectionCapabilities(int);
     method public final void setConnectionProperties(int);
-    method public final void setConnectionStartElapsedRealTime(long);
-    method public final void setConnectionTime(long);
+    method @Deprecated public final void setConnectionStartElapsedRealTime(long);
+    method public final void setConnectionStartElapsedRealtimeMillis(long);
+    method public final void setConnectionTime(@IntRange(from=0) long);
     method public final void setDialing();
     method public final void setDisconnected(android.telecom.DisconnectCause);
     method public final void setExtras(@Nullable android.os.Bundle);
@@ -43965,7 +43967,7 @@
     field public static final String EXTRA_IS_RTT_AUDIO_PRESENT = "android.telecom.extra.IS_RTT_AUDIO_PRESENT";
     field public static final String EXTRA_LAST_FORWARDED_NUMBER = "android.telecom.extra.LAST_FORWARDED_NUMBER";
     field public static final String EXTRA_SIP_INVITE = "android.telecom.extra.SIP_INVITE";
-    field public static final int PROPERTY_ASSISTED_DIALING_USED = 512; // 0x200
+    field public static final int PROPERTY_ASSISTED_DIALING = 512; // 0x200
     field public static final int PROPERTY_HAS_CDMA_VOICE_PRIVACY = 32; // 0x20
     field public static final int PROPERTY_HIGH_DEF_AUDIO = 4; // 0x4
     field public static final int PROPERTY_IS_EXTERNAL_CALL = 16; // 0x10
@@ -45043,7 +45045,7 @@
     method @NonNull public abstract android.telephony.CellIdentity getCellIdentity();
     method @NonNull public abstract android.telephony.CellSignalStrength getCellSignalStrength();
     method @Deprecated public long getTimeStamp();
-    method public long getTimestampNanos();
+    method public long getTimestampMillis();
     method public boolean isRegistered();
     field public static final int CONNECTION_NONE = 0; // 0x0
     field public static final int CONNECTION_PRIMARY_SERVING = 1; // 0x1
@@ -45549,7 +45551,7 @@
     method @Deprecated public int getGsmBitErrorRate();
     method @Deprecated public int getGsmSignalStrength();
     method public int getLevel();
-    method public long getTimestampNanos();
+    method public long getTimestampMillis();
     method @Deprecated public boolean isGsm();
     method public void writeToParcel(android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.telephony.SignalStrength> CREATOR;
diff --git a/api/system-current.txt b/api/system-current.txt
index 2d1f228..469f367 100755
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -4368,7 +4368,7 @@
 
   public class CaptivePortal implements android.os.Parcelable {
     method public void logEvent(int, @NonNull String);
-    method public void reevaluateNetwork();
+    method @RequiresPermission(android.Manifest.permission.NETWORK_STACK) public void reevaluateNetwork();
     method public void useNetwork();
     field public static final int APP_REQUEST_REEVALUATION_REQUIRED = 100; // 0x64
     field public static final int APP_RETURN_DISMISSED = 0; // 0x0
@@ -4649,9 +4649,7 @@
     method @Nullable public String getSSID();
     method @NonNull public int[] getTransportTypes();
     method public boolean satisfiedByNetworkCapabilities(@Nullable android.net.NetworkCapabilities);
-    method @NonNull public android.net.NetworkCapabilities setAdministratorUids(@NonNull java.util.List<java.lang.Integer>);
-    method @NonNull public android.net.NetworkCapabilities setRequestorPackageName(@NonNull String);
-    method @NonNull public android.net.NetworkCapabilities setRequestorUid(int);
+    method public void setAdministratorUids(@NonNull java.util.List<java.lang.Integer>);
     method @NonNull public android.net.NetworkCapabilities setSSID(@Nullable String);
     method @NonNull public android.net.NetworkCapabilities setTransportInfo(@NonNull android.net.TransportInfo);
     field public static final int NET_CAPABILITY_OEM_PAID = 22; // 0x16
@@ -4703,8 +4701,6 @@
   }
 
   public class NetworkRequest implements android.os.Parcelable {
-    method @Nullable public String getRequestorPackageName();
-    method public int getRequestorUid();
     method public boolean satisfiedBy(@Nullable android.net.NetworkCapabilities);
   }
 
@@ -4739,6 +4735,7 @@
   }
 
   public abstract class NetworkSpecifier {
+    method public void assertValidFromUid(int);
     method @Nullable public android.net.NetworkSpecifier redact();
     method public abstract boolean satisfiedBy(@Nullable android.net.NetworkSpecifier);
   }
@@ -8256,27 +8253,26 @@
   public abstract class Conference extends android.telecom.Conferenceable {
     method @Deprecated public final android.telecom.AudioState getAudioState();
     method @Deprecated public final long getConnectTimeMillis();
-    method public final long getConnectionStartElapsedRealTime();
     method public android.telecom.Connection getPrimaryConnection();
     method @NonNull public final String getTelecomCallId();
     method @Deprecated public void onAudioStateChanged(android.telecom.AudioState);
-    method public final void setAddress(@NonNull android.net.Uri, int);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public final void setAddress(@NonNull android.net.Uri, int);
     method public final void setCallerDisplayName(@NonNull String, int);
-    method public void setConferenceState(boolean);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setConferenceState(boolean);
     method @Deprecated public final void setConnectTimeMillis(long);
   }
 
   public abstract class Connection extends android.telecom.Conferenceable {
     method @Deprecated public final android.telecom.AudioState getAudioState();
-    method public final long getConnectElapsedTimeMillis();
-    method public final long getConnectTimeMillis();
+    method @IntRange(from=0) public final long getConnectTimeMillis();
+    method public final long getConnectionStartElapsedRealtimeMillis();
     method @Nullable public android.telecom.PhoneAccountHandle getPhoneAccountHandle();
     method @Nullable public final String getTelecomCallId();
     method @Deprecated public void onAudioStateChanged(android.telecom.AudioState);
     method public final void resetConnectionTime();
     method public void setCallDirection(int);
-    method public final void setConnectTimeMillis(long);
-    method public final void setConnectionStartElapsedRealTime(long);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public final void setConnectTimeMillis(@IntRange(from=0) long);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public final void setConnectionStartElapsedRealtimeMillis(long);
     method public void setPhoneAccountHandle(@NonNull android.telecom.PhoneAccountHandle);
     method public void setTelecomCallId(@NonNull String);
     field public static final int CAPABILITY_CONFERENCE_HAS_NO_CHILDREN = 2097152; // 0x200000
@@ -8428,7 +8424,7 @@
   }
 
   public static class PhoneAccount.Builder {
-    method @NonNull public android.telecom.PhoneAccount.Builder setGroupId(@NonNull String);
+    method @NonNull @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public android.telecom.PhoneAccount.Builder setGroupId(@NonNull String);
   }
 
   public class PhoneAccountSuggestionService extends android.app.Service {
@@ -8503,7 +8499,7 @@
     method public int getCallState();
     method public android.telecom.PhoneAccountHandle getConnectionManager();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public int getCurrentTtyMode();
-    method @Nullable @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getDefaultDialerPackage(int);
+    method @Nullable @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getDefaultDialerPackage(@NonNull android.os.UserHandle);
     method @Deprecated public android.content.ComponentName getDefaultPhoneApp();
     method public java.util.List<android.telecom.PhoneAccountHandle> getPhoneAccountsForPackage();
     method @RequiresPermission(anyOf={android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, android.Manifest.permission.READ_PHONE_STATE}) public java.util.List<android.telecom.PhoneAccountHandle> getPhoneAccountsSupportingScheme(String);
diff --git a/api/test-current.txt b/api/test-current.txt
index a806b64..b3e80a9 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -1398,7 +1398,7 @@
 
   public class CaptivePortal implements android.os.Parcelable {
     method public void logEvent(int, @NonNull String);
-    method public void reevaluateNetwork();
+    method @RequiresPermission(android.Manifest.permission.NETWORK_STACK) public void reevaluateNetwork();
     method public void useNetwork();
     field public static final int APP_REQUEST_REEVALUATION_REQUIRED = 100; // 0x64
     field public static final int APP_RETURN_DISMISSED = 0; // 0x0
@@ -3005,23 +3005,22 @@
   }
 
   public abstract class Conference extends android.telecom.Conferenceable {
-    method public final long getConnectionStartElapsedRealTime();
     method public android.telecom.Connection getPrimaryConnection();
     method @NonNull public final String getTelecomCallId();
-    method public final void setAddress(@NonNull android.net.Uri, int);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public final void setAddress(@NonNull android.net.Uri, int);
     method public final void setCallerDisplayName(@NonNull String, int);
-    method public void setConferenceState(boolean);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setConferenceState(boolean);
   }
 
   public abstract class Connection extends android.telecom.Conferenceable {
-    method public final long getConnectElapsedTimeMillis();
-    method public final long getConnectTimeMillis();
+    method @IntRange(from=0) public final long getConnectTimeMillis();
+    method public final long getConnectionStartElapsedRealtimeMillis();
     method @Nullable public android.telecom.PhoneAccountHandle getPhoneAccountHandle();
     method @Nullable public final String getTelecomCallId();
     method public final void resetConnectionTime();
     method public void setCallDirection(int);
-    method public final void setConnectTimeMillis(long);
-    method public final void setConnectionStartElapsedRealTime(long);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public final void setConnectTimeMillis(@IntRange(from=0) long);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public final void setConnectionStartElapsedRealtimeMillis(long);
     method public void setPhoneAccountHandle(@NonNull android.telecom.PhoneAccountHandle);
     method public void setTelecomCallId(@NonNull String);
     field public static final int CAPABILITY_CONFERENCE_HAS_NO_CHILDREN = 2097152; // 0x200000
@@ -3053,7 +3052,7 @@
   }
 
   public static class PhoneAccount.Builder {
-    method @NonNull public android.telecom.PhoneAccount.Builder setGroupId(@NonNull String);
+    method @NonNull @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public android.telecom.PhoneAccount.Builder setGroupId(@NonNull String);
   }
 
   public class PhoneAccountSuggestionService extends android.app.Service {
@@ -3067,7 +3066,7 @@
   public class TelecomManager {
     method @NonNull @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public java.util.List<android.telecom.PhoneAccountHandle> getCallCapablePhoneAccounts(boolean);
     method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public int getCurrentTtyMode();
-    method @Nullable @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public String getDefaultDialerPackage(int);
+    method @Nullable @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public String getDefaultDialerPackage(@NonNull android.os.UserHandle);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean isInEmergencyCall();
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setUserSelectedOutgoingPhoneAccount(@Nullable android.telecom.PhoneAccountHandle);
     field public static final int TTY_MODE_FULL = 1; // 0x1
diff --git a/core/java/android/app/role/RoleManager.java b/core/java/android/app/role/RoleManager.java
index b9cda6c..2eb9459 100644
--- a/core/java/android/app/role/RoleManager.java
+++ b/core/java/android/app/role/RoleManager.java
@@ -89,6 +89,7 @@
      * The name of the dialer role.
      *
      * @see Intent#ACTION_DIAL
+     * @see android.telecom.InCallService
      */
     public static final String ROLE_DIALER = "android.app.role.DIALER";
 
diff --git a/core/java/android/net/CaptivePortal.java b/core/java/android/net/CaptivePortal.java
index fb35b4b..8afeb30 100644
--- a/core/java/android/net/CaptivePortal.java
+++ b/core/java/android/net/CaptivePortal.java
@@ -15,7 +15,9 @@
  */
 package android.net;
 
+import android.annotation.IntDef;
 import android.annotation.NonNull;
+import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.os.IBinder;
@@ -23,6 +25,8 @@
 import android.os.Parcelable;
 import android.os.RemoteException;
 
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+
 /**
  * A class allowing apps handling the {@link ConnectivityManager#ACTION_CAPTIVE_PORTAL_SIGN_IN}
  * activity to indicate to the system different outcomes of captive portal sign in.  This class is
@@ -76,6 +80,17 @@
     private final IBinder mBinder;
 
     /** @hide */
+    @IntDef(value = {
+        MetricsEvent.ACTION_CAPTIVE_PORTAL_LOGIN_ACTIVITY,
+        MetricsEvent.ACTION_CAPTIVE_PORTAL_LOGIN_RESULT_DISMISSED,
+        MetricsEvent.ACTION_CAPTIVE_PORTAL_LOGIN_RESULT_UNWANTED,
+        MetricsEvent.ACTION_CAPTIVE_PORTAL_LOGIN_RESULT_WANTED_AS_IS,
+        MetricsEvent.CAPTIVE_PORTAL_LOGIN_ACTIVITY_SSL_ERROR,
+    })
+    public @interface EventId {
+    }
+
+    /** @hide */
     public CaptivePortal(@NonNull IBinder binder) {
         mBinder = binder;
     }
@@ -153,6 +168,7 @@
      */
     @SystemApi
     @TestApi
+    @RequiresPermission(android.Manifest.permission.NETWORK_STACK)
     public void reevaluateNetwork() {
         try {
             ICaptivePortal.Stub.asInterface(mBinder).appRequest(APP_REQUEST_REEVALUATION_REQUIRED);
@@ -168,7 +184,7 @@
      */
     @SystemApi
     @TestApi
-    public void logEvent(int eventId, @NonNull String packageName) {
+    public void logEvent(@EventId int eventId, @NonNull String packageName) {
         try {
             ICaptivePortal.Stub.asInterface(mBinder).logEvent(eventId, packageName);
         } catch (RemoteException e) {
diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index cb31404..212c716 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -3746,7 +3746,6 @@
         checkCallbackNotNull(callback);
         Preconditions.checkArgument(action == REQUEST || need != null, "null NetworkCapabilities");
         final NetworkRequest request;
-        final String callingPackageName = mContext.getOpPackageName();
         try {
             synchronized(sCallbacks) {
                 if (callback.networkRequest != null
@@ -3758,11 +3757,10 @@
                 Messenger messenger = new Messenger(handler);
                 Binder binder = new Binder();
                 if (action == LISTEN) {
-                    request = mService.listenForNetwork(
-                            need, messenger, binder, callingPackageName);
+                    request = mService.listenForNetwork(need, messenger, binder);
                 } else {
                     request = mService.requestNetwork(
-                            need, messenger, timeoutMs, binder, legacyType, callingPackageName);
+                            need, messenger, timeoutMs, binder, legacyType);
                 }
                 if (request != null) {
                     sCallbacks.put(request, callback);
@@ -4035,10 +4033,8 @@
             @NonNull PendingIntent operation) {
         printStackTrace();
         checkPendingIntentNotNull(operation);
-        final String callingPackageName = mContext.getOpPackageName();
         try {
-            mService.pendingRequestForNetwork(
-                    request.networkCapabilities, operation, callingPackageName);
+            mService.pendingRequestForNetwork(request.networkCapabilities, operation);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         } catch (ServiceSpecificException e) {
@@ -4150,10 +4146,8 @@
             @NonNull PendingIntent operation) {
         printStackTrace();
         checkPendingIntentNotNull(operation);
-        final String callingPackageName = mContext.getOpPackageName();
         try {
-            mService.pendingListenForNetwork(
-                    request.networkCapabilities, operation, callingPackageName);
+            mService.pendingListenForNetwork(request.networkCapabilities, operation);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         } catch (ServiceSpecificException e) {
diff --git a/core/java/android/net/IConnectivityManager.aidl b/core/java/android/net/IConnectivityManager.aidl
index 3a55461..c871c45 100644
--- a/core/java/android/net/IConnectivityManager.aidl
+++ b/core/java/android/net/IConnectivityManager.aidl
@@ -166,19 +166,18 @@
             in int factorySerialNumber);
 
     NetworkRequest requestNetwork(in NetworkCapabilities networkCapabilities,
-            in Messenger messenger, int timeoutSec, in IBinder binder, int legacy,
-            String callingPackageName);
+            in Messenger messenger, int timeoutSec, in IBinder binder, int legacy);
 
     NetworkRequest pendingRequestForNetwork(in NetworkCapabilities networkCapabilities,
-            in PendingIntent operation, String callingPackageName);
+            in PendingIntent operation);
 
     void releasePendingNetworkRequest(in PendingIntent operation);
 
     NetworkRequest listenForNetwork(in NetworkCapabilities networkCapabilities,
-            in Messenger messenger, in IBinder binder, String callingPackageName);
+            in Messenger messenger, in IBinder binder);
 
     void pendingListenForNetwork(in NetworkCapabilities networkCapabilities,
-            in PendingIntent operation, String callingPackageName);
+            in PendingIntent operation);
 
     void releaseNetworkRequest(in NetworkRequest networkRequest);
 
diff --git a/core/java/android/net/NetworkCapabilities.java b/core/java/android/net/NetworkCapabilities.java
index ef4a9e5..38f7390 100644
--- a/core/java/android/net/NetworkCapabilities.java
+++ b/core/java/android/net/NetworkCapabilities.java
@@ -27,7 +27,6 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.Process;
-import android.text.TextUtils;
 import android.util.ArraySet;
 import android.util.proto.ProtoOutputStream;
 
@@ -64,16 +63,6 @@
     // Set to true when private DNS is broken.
     private boolean mPrivateDnsBroken;
 
-    /**
-     * Uid of the app making the request.
-     */
-    private int mRequestorUid;
-
-    /**
-     * Package name of the app making the request.
-     */
-    private String mRequestorPackageName;
-
     public NetworkCapabilities() {
         clearAll();
         mNetworkCapabilities = DEFAULT_CAPABILITIES;
@@ -100,8 +89,6 @@
         mOwnerUid = Process.INVALID_UID;
         mSSID = null;
         mPrivateDnsBroken = false;
-        mRequestorUid = Process.INVALID_UID;
-        mRequestorPackageName = null;
     }
 
     /**
@@ -122,8 +109,6 @@
         mUnwantedNetworkCapabilities = nc.mUnwantedNetworkCapabilities;
         mSSID = nc.mSSID;
         mPrivateDnsBroken = nc.mPrivateDnsBroken;
-        mRequestorUid = nc.mRequestorUid;
-        mRequestorPackageName = nc.mRequestorPackageName;
     }
 
     /**
@@ -825,7 +810,7 @@
     }
 
     /**
-     * UID of the app that owns this network, or Process#INVALID_UID if none/unknown.
+     * UID of the app that owns this network, or INVALID_UID if none/unknown.
      *
      * <p>This field keeps track of the UID of the app that created this network and is in charge of
      * its lifecycle. This could be the UID of apps such as the Wifi network suggestor, the running
@@ -836,9 +821,8 @@
     /**
      * Set the UID of the owner app.
      */
-    public @NonNull NetworkCapabilities setOwnerUid(final int uid) {
+    public void setOwnerUid(final int uid) {
         mOwnerUid = uid;
-        return this;
     }
 
     /**
@@ -881,11 +865,9 @@
      * @hide
      */
     @SystemApi
-    public @NonNull NetworkCapabilities setAdministratorUids(
-            @NonNull final List<Integer> administratorUids) {
+    public void setAdministratorUids(@NonNull final List<Integer> administratorUids) {
         mAdministratorUids.clear();
         mAdministratorUids.addAll(administratorUids);
-        return this;
     }
 
     /**
@@ -1403,7 +1385,6 @@
         combineSignalStrength(nc);
         combineUids(nc);
         combineSSIDs(nc);
-        combineRequestor(nc);
     }
 
     /**
@@ -1423,8 +1404,7 @@
                 && satisfiedBySpecifier(nc)
                 && (onlyImmutable || satisfiedBySignalStrength(nc))
                 && (onlyImmutable || satisfiedByUids(nc))
-                && (onlyImmutable || satisfiedBySSID(nc)))
-                && (onlyImmutable || satisfiedByRequestor(nc));
+                && (onlyImmutable || satisfiedBySSID(nc)));
     }
 
     /**
@@ -1508,7 +1488,7 @@
     public boolean equals(@Nullable Object obj) {
         if (obj == null || (obj instanceof NetworkCapabilities == false)) return false;
         NetworkCapabilities that = (NetworkCapabilities) obj;
-        return equalsNetCapabilities(that)
+        return (equalsNetCapabilities(that)
                 && equalsTransportTypes(that)
                 && equalsLinkBandwidths(that)
                 && equalsSignalStrength(that)
@@ -1516,8 +1496,7 @@
                 && equalsTransportInfo(that)
                 && equalsUids(that)
                 && equalsSSID(that)
-                && equalsPrivateDnsBroken(that)
-                && equalsRequestor(that);
+                && equalsPrivateDnsBroken(that));
     }
 
     @Override
@@ -1535,9 +1514,7 @@
                 + Objects.hashCode(mUids) * 31
                 + Objects.hashCode(mSSID) * 37
                 + Objects.hashCode(mTransportInfo) * 41
-                + Objects.hashCode(mPrivateDnsBroken) * 43
-                + Objects.hashCode(mRequestorUid) * 47
-                + Objects.hashCode(mRequestorPackageName) * 53;
+                + Objects.hashCode(mPrivateDnsBroken) * 43;
     }
 
     @Override
@@ -1560,8 +1537,6 @@
         dest.writeBoolean(mPrivateDnsBroken);
         dest.writeList(mAdministratorUids);
         dest.writeInt(mOwnerUid);
-        dest.writeInt(mRequestorUid);
-        dest.writeString(mRequestorPackageName);
     }
 
     public static final @android.annotation.NonNull Creator<NetworkCapabilities> CREATOR =
@@ -1584,8 +1559,6 @@
                 netCap.mPrivateDnsBroken = in.readBoolean();
                 netCap.setAdministratorUids(in.readArrayList(null));
                 netCap.mOwnerUid = in.readInt();
-                netCap.mRequestorUid = in.readInt();
-                netCap.mRequestorPackageName = in.readString();
                 return netCap;
             }
             @Override
@@ -1651,9 +1624,6 @@
             sb.append(" Private DNS is broken");
         }
 
-        sb.append(" RequestorUid: ").append(mRequestorUid);
-        sb.append(" RequestorPackageName: ").append(mRequestorPackageName);
-
         sb.append("]");
         return sb.toString();
     }
@@ -1662,7 +1632,6 @@
     private interface NameOf {
         String nameOf(int value);
     }
-
     /**
      * @hide
      */
@@ -1830,120 +1799,4 @@
     private boolean equalsPrivateDnsBroken(NetworkCapabilities nc) {
         return mPrivateDnsBroken == nc.mPrivateDnsBroken;
     }
-
-    /**
-     * Set the uid of the app making the request.
-     *
-     * Note: This works only for {@link NetworkAgent} instances. Any capabilities passed in
-     * via the public {@link ConnectivityManager} API's will have this field overwritten.
-     *
-     * @param uid UID of the app.
-     * @hide
-     */
-    @SystemApi
-    public @NonNull NetworkCapabilities setRequestorUid(int uid) {
-        mRequestorUid = uid;
-        return this;
-    }
-
-    /**
-     * @return the uid of the app making the request.
-     *
-     * Note: This could return {@link Process#INVALID_UID} if the {@link NetworkRequest}
-     * object was not obtained from {@link ConnectivityManager}.
-     * @hide
-     */
-    public int getRequestorUid() {
-        return mRequestorUid;
-    }
-
-    /**
-     * Set the package name of the app making the request.
-     *
-     * Note: This works only for {@link NetworkAgent} instances. Any capabilities passed in
-     * via the public {@link ConnectivityManager} API's will have this field overwritten.
-     *
-     * @param packageName package name of the app.
-     * @hide
-     */
-    @SystemApi
-    public @NonNull NetworkCapabilities setRequestorPackageName(@NonNull String packageName) {
-        mRequestorPackageName = packageName;
-        return this;
-    }
-
-    /**
-     * @return the package name of the app making the request.
-     *
-     * Note: This could return {@code null} if the {@link NetworkRequest} object was not obtained
-     * from {@link ConnectivityManager}.
-     * @hide
-     */
-    @Nullable
-    public String getRequestorPackageName() {
-        return mRequestorPackageName;
-    }
-
-    /**
-     * Set the uid and package name of the app making the request.
-     *
-     * Note: This is intended to be only invoked from within connectivitiy service.
-     *
-     * @param uid UID of the app.
-     * @param packageName package name of the app.
-     * @hide
-     */
-    public @NonNull NetworkCapabilities setRequestorUidAndPackageName(
-            int uid, @NonNull String packageName) {
-        return setRequestorUid(uid).setRequestorPackageName(packageName);
-    }
-
-    /**
-     * Test whether the passed NetworkCapabilities satisfies the requestor restrictions of this
-     * capabilities.
-     *
-     * This method is called on the NetworkCapabilities embedded in a request with the
-     * capabilities of an available network. If the available network, sets a specific
-     * requestor (by uid and optionally package name), then this will only match a request from the
-     * same app. If either of the capabilities have an unset uid or package name, then it matches
-     * everything.
-     * <p>
-     * nc is assumed nonnull. Else, NPE.
-     */
-    private boolean satisfiedByRequestor(NetworkCapabilities nc) {
-        // No uid set, matches everything.
-        if (mRequestorUid == Process.INVALID_UID || nc.mRequestorUid == Process.INVALID_UID) {
-            return true;
-        }
-        // uids don't match.
-        if (mRequestorUid != nc.mRequestorUid) return false;
-        // No package names set, matches everything
-        if (null == nc.mRequestorPackageName || null == mRequestorPackageName) return true;
-        // check for package name match.
-        return TextUtils.equals(mRequestorPackageName, nc.mRequestorPackageName);
-    }
-
-    /**
-     * Combine requestor info of the capabilities.
-     * <p>
-     * This is only legal if either the requestor info of this object is reset, or both info are
-     * equal.
-     * nc is assumed nonnull.
-     */
-    private void combineRequestor(@NonNull NetworkCapabilities nc) {
-        if (mRequestorUid != Process.INVALID_UID && mRequestorUid != nc.mOwnerUid) {
-            throw new IllegalStateException("Can't combine two uids");
-        }
-        if (mRequestorPackageName != null
-                && !mRequestorPackageName.equals(nc.mRequestorPackageName)) {
-            throw new IllegalStateException("Can't combine two package names");
-        }
-        setRequestorUid(nc.mRequestorUid);
-        setRequestorPackageName(nc.mRequestorPackageName);
-    }
-
-    private boolean equalsRequestor(NetworkCapabilities nc) {
-        return mRequestorUid == nc.mRequestorUid
-                && TextUtils.equals(mRequestorPackageName, nc.mRequestorPackageName);
-    }
 }
diff --git a/core/java/android/net/NetworkRequest.java b/core/java/android/net/NetworkRequest.java
index b0bf64e..ee4379a 100644
--- a/core/java/android/net/NetworkRequest.java
+++ b/core/java/android/net/NetworkRequest.java
@@ -380,7 +380,6 @@
         dest.writeInt(requestId);
         dest.writeString(type.name());
     }
-
     public static final @android.annotation.NonNull Creator<NetworkRequest> CREATOR =
         new Creator<NetworkRequest>() {
             public NetworkRequest createFromParcel(Parcel in) {
@@ -495,31 +494,6 @@
         return networkCapabilities.getNetworkSpecifier();
     }
 
-    /**
-     * @return the uid of the app making the request.
-     *
-     * Note: This could return {@link Process#INVALID_UID} if the {@link NetworkRequest} object was
-     * not obtained from {@link ConnectivityManager}.
-     * @hide
-     */
-    @SystemApi
-    public int getRequestorUid() {
-        return networkCapabilities.getRequestorUid();
-    }
-
-    /**
-     * @return the package name of the app making the request.
-     *
-     * Note: This could return {@code null} if the {@link NetworkRequest} object was not obtained
-     * from {@link ConnectivityManager}.
-     * @hide
-     */
-    @SystemApi
-    @Nullable
-    public String getRequestorPackageName() {
-        return networkCapabilities.getRequestorPackageName();
-    }
-
     public String toString() {
         return "NetworkRequest [ " + type + " id=" + requestId +
                 (legacyType != ConnectivityManager.TYPE_NONE ? ", legacyType=" + legacyType : "") +
diff --git a/core/java/android/net/NetworkSpecifier.java b/core/java/android/net/NetworkSpecifier.java
index 2dd0c4e..cf31d21 100644
--- a/core/java/android/net/NetworkSpecifier.java
+++ b/core/java/android/net/NetworkSpecifier.java
@@ -39,6 +39,23 @@
 
     /**
      * Optional method which can be overridden by concrete implementations of NetworkSpecifier to
+     * check a self-reported UID. A concrete implementation may contain a UID which would be self-
+     * reported by the caller (since NetworkSpecifier implementations should be non-mutable). This
+     * function is called by ConnectivityService and is passed the actual UID of the caller -
+     * allowing the verification of the self-reported UID. In cases of mismatch the implementation
+     * should throw a SecurityException.
+     *
+     * @param requestorUid The UID of the requestor as obtained from its binder.
+     *
+     * @hide
+     */
+    @SystemApi
+    public void assertValidFromUid(int requestorUid) {
+        // empty
+    }
+
+    /**
+     * Optional method which can be overridden by concrete implementations of NetworkSpecifier to
      * perform any redaction of information from the NetworkSpecifier, e.g. if it contains
      * sensitive information. The default implementation simply returns the object itself - i.e.
      * no information is redacted. A concrete implementation may return a modified (copy) of the
diff --git a/core/java/android/net/NetworkStatsHistory.java b/core/java/android/net/NetworkStatsHistory.java
index 7b799e2..c82c288 100644
--- a/core/java/android/net/NetworkStatsHistory.java
+++ b/core/java/android/net/NetworkStatsHistory.java
@@ -548,32 +548,32 @@
         final int startIndex = getIndexAfter(end);
         for (int i = startIndex; i >= 0; i--) {
             final long curStart = bucketStart[i];
-            final long curEnd = curStart + bucketDuration;
+            long curEnd = curStart + bucketDuration;
 
             // bucket is older than request; we're finished
             if (curEnd <= start) break;
             // bucket is newer than request; keep looking
             if (curStart >= end) continue;
 
-            // include full value for active buckets, otherwise only fractional
-            final boolean activeBucket = curStart < now && curEnd > now;
-            final long overlap;
-            if (activeBucket) {
-                overlap = bucketDuration;
-            } else {
-                final long overlapEnd = curEnd < end ? curEnd : end;
-                final long overlapStart = curStart > start ? curStart : start;
-                overlap = overlapEnd - overlapStart;
-            }
+            // the active bucket is shorter then a normal completed bucket
+            if (curEnd > now) curEnd = now;
+            // usually this is simply bucketDuration
+            final long bucketSpan = curEnd - curStart;
+            // prevent division by zero
+            if (bucketSpan <= 0) continue;
+
+            final long overlapEnd = curEnd < end ? curEnd : end;
+            final long overlapStart = curStart > start ? curStart : start;
+            final long overlap = overlapEnd - overlapStart;
             if (overlap <= 0) continue;
 
             // integer math each time is faster than floating point
-            if (activeTime != null) entry.activeTime += activeTime[i] * overlap / bucketDuration;
-            if (rxBytes != null) entry.rxBytes += rxBytes[i] * overlap / bucketDuration;
-            if (rxPackets != null) entry.rxPackets += rxPackets[i] * overlap / bucketDuration;
-            if (txBytes != null) entry.txBytes += txBytes[i] * overlap / bucketDuration;
-            if (txPackets != null) entry.txPackets += txPackets[i] * overlap / bucketDuration;
-            if (operations != null) entry.operations += operations[i] * overlap / bucketDuration;
+            if (activeTime != null) entry.activeTime += activeTime[i] * overlap / bucketSpan;
+            if (rxBytes != null) entry.rxBytes += rxBytes[i] * overlap / bucketSpan;
+            if (rxPackets != null) entry.rxPackets += rxPackets[i] * overlap / bucketSpan;
+            if (txBytes != null) entry.txBytes += txBytes[i] * overlap / bucketSpan;
+            if (txPackets != null) entry.txPackets += txPackets[i] * overlap / bucketSpan;
+            if (operations != null) entry.operations += operations[i] * overlap / bucketSpan;
         }
         return entry;
     }
diff --git a/core/java/android/os/Trace.java b/core/java/android/os/Trace.java
index 25584f1..c5c26b0 100644
--- a/core/java/android/os/Trace.java
+++ b/core/java/android/os/Trace.java
@@ -175,11 +175,7 @@
     }
 
     /**
-     * Set whether tracing is enabled in this process.  Tracing is disabled shortly after Zygote
-     * initializes and re-enabled after processes fork from Zygote.  This is done because Zygote
-     * has no way to be notified about changes to the tracing tags, and if Zygote ever reads and
-     * caches the tracing tags, forked processes will inherit those stale tags.
-     *
+     * Set whether tracing is enabled in this process.
      * @hide
      */
     public static void setTracingEnabled(boolean enabled, int debugFlags) {
diff --git a/core/java/com/android/internal/os/Zygote.java b/core/java/com/android/internal/os/Zygote.java
index c1c74dc..bcb6c0f 100644
--- a/core/java/com/android/internal/os/Zygote.java
+++ b/core/java/com/android/internal/os/Zygote.java
@@ -261,10 +261,8 @@
         int pid = nativeForkAndSpecialize(
                 uid, gid, gids, runtimeFlags, rlimits, mountExternal, seInfo, niceName, fdsToClose,
                 fdsToIgnore, startChildZygote, instructionSet, appDataDir);
-        // Enable tracing as soon as possible for the child process.
         if (pid == 0) {
             Zygote.disableExecuteOnly(targetSdkVersion);
-            Trace.setTracingEnabled(true, runtimeFlags);
 
             // Note that this event ends at the end of handleChildProc,
             Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "PostFork");
@@ -309,9 +307,6 @@
         nativeSpecializeAppProcess(uid, gid, gids, runtimeFlags, rlimits, mountExternal, seInfo,
                 niceName, startChildZygote, instructionSet, appDataDir);
 
-        // Enable tracing as soon as possible for the child process.
-        Trace.setTracingEnabled(true, runtimeFlags);
-
         // Note that this event ends at the end of handleChildProc.
         Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "PostFork");
 
@@ -367,11 +362,6 @@
                 uid, gid, gids, runtimeFlags, rlimits,
                 permittedCapabilities, effectiveCapabilities);
 
-        // Enable tracing as soon as we enter the system_server.
-        if (pid == 0) {
-            Trace.setTracingEnabled(true, runtimeFlags);
-        }
-
         // Set the Java Language thread priority to the default value for new apps.
         Thread.currentThread().setPriority(Thread.NORM_PRIORITY);
 
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 348262e..1b81a06 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -908,10 +908,6 @@
             bootTimingsTraceLog.traceEnd(); // PostZygoteInitGC
 
             bootTimingsTraceLog.traceEnd(); // ZygoteInit
-            // Disable tracing so that forked processes do not inherit stale tracing tags from
-            // Zygote.
-            Trace.setTracingEnabled(false, 0);
-
 
             Zygote.initNativeState(isPrimaryZygote);
 
diff --git a/packages/PrintSpooler/res/values-ja/donottranslate.xml b/packages/PrintSpooler/res/values-ja/donottranslate.xml
index d334ddd..6a0f768 100644
--- a/packages/PrintSpooler/res/values-ja/donottranslate.xml
+++ b/packages/PrintSpooler/res/values-ja/donottranslate.xml
@@ -16,7 +16,7 @@
 
 <resources>
 
-    <string name="mediasize_default">JIS_B5</string>
+    <string name="mediasize_default">ISO_A4</string>
     <string name="mediasize_standard">@string/mediasize_standard_japan</string>
 
 </resources>
diff --git a/packages/Tethering/common/TetheringLib/src/android/net/TetheredClient.java b/packages/Tethering/common/TetheringLib/src/android/net/TetheredClient.java
index 6514688..f5c9664 100644
--- a/packages/Tethering/common/TetheringLib/src/android/net/TetheredClient.java
+++ b/packages/Tethering/common/TetheringLib/src/android/net/TetheredClient.java
@@ -25,7 +25,7 @@
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Objects;
 
@@ -83,7 +83,7 @@
      * @hide
      */
     public TetheredClient addAddresses(@NonNull TetheredClient other) {
-        final HashSet<AddressInfo> newAddresses = new HashSet<>(
+        final LinkedHashSet<AddressInfo> newAddresses = new LinkedHashSet<>(
                 mAddresses.size() + other.mAddresses.size());
         newAddresses.addAll(mAddresses);
         newAddresses.addAll(other.mAddresses);
diff --git a/packages/Tethering/tests/unit/src/android/net/TetheredClientTest.kt b/packages/Tethering/tests/unit/src/android/net/TetheredClientTest.kt
index 83c19ec..d85389a 100644
--- a/packages/Tethering/tests/unit/src/android/net/TetheredClientTest.kt
+++ b/packages/Tethering/tests/unit/src/android/net/TetheredClientTest.kt
@@ -75,7 +75,7 @@
         assertNotEquals(makeTestClient(), TetheredClient(
                 TEST_MACADDR,
                 listOf(TEST_ADDRINFO1, TEST_ADDRINFO2),
-                TETHERING_BLUETOOTH))
+                TETHERING_USB))
     }
 
     @Test
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 83d25f7..e2b8ad9 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -606,7 +606,7 @@
 
     private Set<String> mWolSupportedInterfaces;
 
-    private final TelephonyManager mTelephonyManager;
+    private TelephonyManager mTelephonyManager;
     private final AppOpsManager mAppOpsManager;
 
     private final LocationPermissionChecker mLocationPermissionChecker;
@@ -1166,7 +1166,6 @@
             int transportType, NetworkRequest.Type type) {
         final NetworkCapabilities netCap = new NetworkCapabilities();
         netCap.addCapability(NET_CAPABILITY_INTERNET);
-        netCap.setRequestorUidAndPackageName(Process.myUid(), mContext.getPackageName());
         if (transportType > -1) {
             netCap.addTransportType(transportType);
         }
@@ -1697,12 +1696,10 @@
         return newLp;
     }
 
-    private void restrictRequestUidsForCallerAndSetRequestorInfo(NetworkCapabilities nc,
-            int callerUid, String callerPackageName) {
+    private void restrictRequestUidsForCaller(NetworkCapabilities nc) {
         if (!checkSettingsPermission()) {
-            nc.setSingleUid(callerUid);
+            nc.setSingleUid(Binder.getCallingUid());
         }
-        nc.setRequestorUidAndPackageName(callerUid, callerPackageName);
         nc.setAdministratorUids(Collections.EMPTY_LIST);
 
         // Clear owner UID; this can never come from an app.
@@ -3742,6 +3739,7 @@
             if (nm == null) return;
 
             if (request == CaptivePortal.APP_REQUEST_REEVALUATION_REQUIRED) {
+                checkNetworkStackPermission();
                 nm.forceReevaluation(Binder.getCallingUid());
             }
         }
@@ -5307,7 +5305,7 @@
     // This checks that the passed capabilities either do not request a
     // specific SSID/SignalStrength, or the calling app has permission to do so.
     private void ensureSufficientPermissionsForRequest(NetworkCapabilities nc,
-            int callerPid, int callerUid, String callerPackageName) {
+            int callerPid, int callerUid) {
         if (null != nc.getSSID() && !checkSettingsPermission(callerPid, callerUid)) {
             throw new SecurityException("Insufficient permissions to request a specific SSID");
         }
@@ -5317,7 +5315,6 @@
             throw new SecurityException(
                     "Insufficient permissions to request a specific signal strength");
         }
-        mAppOpsManager.checkPackage(callerUid, callerPackageName);
     }
 
     private ArrayList<Integer> getSignalStrengthThresholds(NetworkAgentInfo nai) {
@@ -5364,6 +5361,7 @@
             return;
         }
         MatchAllNetworkSpecifier.checkNotMatchAllNetworkSpecifier(ns);
+        ns.assertValidFromUid(Binder.getCallingUid());
     }
 
     private void ensureValid(NetworkCapabilities nc) {
@@ -5375,9 +5373,7 @@
 
     @Override
     public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities,
-            Messenger messenger, int timeoutMs, IBinder binder, int legacyType,
-            @NonNull String callingPackageName) {
-        final int callingUid = Binder.getCallingUid();
+            Messenger messenger, int timeoutMs, IBinder binder, int legacyType) {
         final NetworkRequest.Type type = (networkCapabilities == null)
                 ? NetworkRequest.Type.TRACK_DEFAULT
                 : NetworkRequest.Type.REQUEST;
@@ -5385,7 +5381,7 @@
         // the default network request. This allows callers to keep track of
         // the system default network.
         if (type == NetworkRequest.Type.TRACK_DEFAULT) {
-            networkCapabilities = createDefaultNetworkCapabilitiesForUid(callingUid);
+            networkCapabilities = createDefaultNetworkCapabilitiesForUid(Binder.getCallingUid());
             enforceAccessPermission();
         } else {
             networkCapabilities = new NetworkCapabilities(networkCapabilities);
@@ -5397,14 +5393,13 @@
         }
         ensureRequestableCapabilities(networkCapabilities);
         ensureSufficientPermissionsForRequest(networkCapabilities,
-                Binder.getCallingPid(), callingUid, callingPackageName);
+                Binder.getCallingPid(), Binder.getCallingUid());
         // Set the UID range for this request to the single UID of the requester, or to an empty
         // set of UIDs if the caller has the appropriate permission and UIDs have not been set.
         // This will overwrite any allowed UIDs in the requested capabilities. Though there
         // are no visible methods to set the UIDs, an app could use reflection to try and get
         // networks for other apps so it's essential that the UIDs are overwritten.
-        restrictRequestUidsForCallerAndSetRequestorInfo(networkCapabilities,
-                callingUid, callingPackageName);
+        restrictRequestUidsForCaller(networkCapabilities);
 
         if (timeoutMs < 0) {
             throw new IllegalArgumentException("Bad timeout specified");
@@ -5479,18 +5474,16 @@
 
     @Override
     public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities,
-            PendingIntent operation, @NonNull String callingPackageName) {
+            PendingIntent operation) {
         checkNotNull(operation, "PendingIntent cannot be null.");
-        final int callingUid = Binder.getCallingUid();
         networkCapabilities = new NetworkCapabilities(networkCapabilities);
         enforceNetworkRequestPermissions(networkCapabilities);
         enforceMeteredApnPolicy(networkCapabilities);
         ensureRequestableCapabilities(networkCapabilities);
         ensureSufficientPermissionsForRequest(networkCapabilities,
-                Binder.getCallingPid(), callingUid, callingPackageName);
+                Binder.getCallingPid(), Binder.getCallingUid());
         ensureValidNetworkSpecifier(networkCapabilities);
-        restrictRequestUidsForCallerAndSetRequestorInfo(networkCapabilities,
-                callingUid, callingPackageName);
+        restrictRequestUidsForCaller(networkCapabilities);
 
         NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, TYPE_NONE,
                 nextNetworkRequestId(), NetworkRequest.Type.REQUEST);
@@ -5538,16 +5531,15 @@
 
     @Override
     public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities,
-            Messenger messenger, IBinder binder, @NonNull String callingPackageName) {
-        final int callingUid = Binder.getCallingUid();
+            Messenger messenger, IBinder binder) {
         if (!hasWifiNetworkListenPermission(networkCapabilities)) {
             enforceAccessPermission();
         }
 
         NetworkCapabilities nc = new NetworkCapabilities(networkCapabilities);
         ensureSufficientPermissionsForRequest(networkCapabilities,
-                Binder.getCallingPid(), callingUid, callingPackageName);
-        restrictRequestUidsForCallerAndSetRequestorInfo(nc, callingUid, callingPackageName);
+                Binder.getCallingPid(), Binder.getCallingUid());
+        restrictRequestUidsForCaller(nc);
         // Apps without the CHANGE_NETWORK_STATE permission can't use background networks, so
         // make all their listens include NET_CAPABILITY_FOREGROUND. That way, they will get
         // onLost and onAvailable callbacks when networks move in and out of the background.
@@ -5567,17 +5559,17 @@
 
     @Override
     public void pendingListenForNetwork(NetworkCapabilities networkCapabilities,
-            PendingIntent operation, @NonNull String callingPackageName) {
+            PendingIntent operation) {
         checkNotNull(operation, "PendingIntent cannot be null.");
-        final int callingUid = Binder.getCallingUid();
         if (!hasWifiNetworkListenPermission(networkCapabilities)) {
             enforceAccessPermission();
         }
         ensureValid(networkCapabilities);
         ensureSufficientPermissionsForRequest(networkCapabilities,
-                Binder.getCallingPid(), callingUid, callingPackageName);
+                Binder.getCallingPid(), Binder.getCallingUid());
+
         final NetworkCapabilities nc = new NetworkCapabilities(networkCapabilities);
-        restrictRequestUidsForCallerAndSetRequestorInfo(nc, callingUid, callingPackageName);
+        restrictRequestUidsForCaller(nc);
 
         NetworkRequest networkRequest = new NetworkRequest(nc, TYPE_NONE, nextNetworkRequestId(),
                 NetworkRequest.Type.LISTEN);
@@ -7856,13 +7848,12 @@
             throw new IllegalArgumentException("ConnectivityManager.TYPE_* are deprecated."
                     + " Please use NetworkCapabilities instead.");
         }
-        final int callingUid = Binder.getCallingUid();
-        mAppOpsManager.checkPackage(callingUid, callingPackageName);
+        mAppOpsManager.checkPackage(Binder.getCallingUid(), callingPackageName);
 
         // This NetworkCapabilities is only used for matching to Networks. Clear out its owner uid
         // and administrator uids to be safe.
         final NetworkCapabilities nc = new NetworkCapabilities(request.networkCapabilities);
-        restrictRequestUidsForCallerAndSetRequestorInfo(nc, callingUid, callingPackageName);
+        restrictRequestUidsForCaller(nc);
 
         final NetworkRequest requestWithId =
                 new NetworkRequest(
diff --git a/services/core/java/com/android/server/compat/CompatChange.java b/services/core/java/com/android/server/compat/CompatChange.java
index 2eec419..8687f35 100644
--- a/services/core/java/com/android/server/compat/CompatChange.java
+++ b/services/core/java/com/android/server/compat/CompatChange.java
@@ -17,6 +17,7 @@
 package com.android.server.compat;
 
 import android.annotation.Nullable;
+import android.compat.annotation.ChangeId;
 import android.compat.annotation.EnabledAfter;
 import android.content.pm.ApplicationInfo;
 
@@ -39,6 +40,13 @@
 public final class CompatChange extends CompatibilityChangeInfo {
 
     /**
+     * A change ID to be used only in the CTS test for this SystemApi
+     */
+    @ChangeId
+    @EnabledAfter(targetSdkVersion = 1234) // Needs to be > test APK targetSdkVersion.
+    private static final long CTS_SYSTEM_API_CHANGEID = 149391281; // This is a bug id.
+
+    /**
      * Callback listener for when compat changes are updated for a package.
      * See {@link #registerListener(ChangeListener)} for more details.
      */
diff --git a/telecomm/java/android/telecom/Call.java b/telecomm/java/android/telecom/Call.java
index ec99f36..52213d8 100644
--- a/telecomm/java/android/telecom/Call.java
+++ b/telecomm/java/android/telecom/Call.java
@@ -17,6 +17,7 @@
 package android.telecom;
 
 import android.annotation.IntDef;
+import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
@@ -458,8 +459,14 @@
         /** Call supports the deflect feature. */
         public static final int CAPABILITY_SUPPORT_DEFLECT = 0x01000000;
 
+        /**
+         * Call supports adding participants to the call via
+         * {@link #addConferenceParticipants(List)}.
+         * @hide
+         */
+        public static final int CAPABILITY_ADD_PARTICIPANT = 0x02000000;
         //******************************************************************************************
-        // Next CAPABILITY value: 0x02000000
+        // Next CAPABILITY value: 0x04000000
         //******************************************************************************************
 
         /**
@@ -539,7 +546,7 @@
          *
          * @see TelecomManager#EXTRA_USE_ASSISTED_DIALING
          */
-        public static final int PROPERTY_ASSISTED_DIALING_USED = 0x00000200;
+        public static final int PROPERTY_ASSISTED_DIALING = 0x00000200;
 
         /**
          * Indicates that the call is an RTT call. Use {@link #getRttCall()} to get the
@@ -689,6 +696,9 @@
             if (can(capabilities, CAPABILITY_SUPPORT_DEFLECT)) {
                 builder.append(" CAPABILITY_SUPPORT_DEFLECT");
             }
+            if (can(capabilities, CAPABILITY_ADD_PARTICIPANT)) {
+                builder.append(" CAPABILITY_ADD_PARTICIPANT");
+            }
             builder.append("]");
             return builder.toString();
         }
@@ -744,7 +754,7 @@
             if (hasProperty(properties, PROPERTY_HAS_CDMA_VOICE_PRIVACY)) {
                 builder.append(" PROPERTY_HAS_CDMA_VOICE_PRIVACY");
             }
-            if (hasProperty(properties, PROPERTY_ASSISTED_DIALING_USED)) {
+            if (hasProperty(properties, PROPERTY_ASSISTED_DIALING)) {
                 builder.append(" PROPERTY_ASSISTED_DIALING_USED");
             }
             if (hasProperty(properties, PROPERTY_NETWORK_IDENTIFIED_EMERGENCY_CALL)) {
@@ -1703,6 +1713,17 @@
     }
 
     /**
+     * Pulls participants to existing call by forming a conference call.
+     * See {@link Details#CAPABILITY_ADD_PARTICIPANT}.
+     *
+     * @param participants participants to be pulled to existing call.
+     * @hide
+     */
+    public void addConferenceParticipants(@NonNull List<Uri> participants) {
+        mInCallAdapter.addConferenceParticipants(mTelecomCallId, participants);
+    }
+
+    /**
      * Initiates a request to the {@link ConnectionService} to pull an external call to the local
      * device.
      * <p>
diff --git a/telecomm/java/android/telecom/Conference.java b/telecomm/java/android/telecom/Conference.java
index 56acdff..f019a9d 100644
--- a/telecomm/java/android/telecom/Conference.java
+++ b/telecomm/java/android/telecom/Conference.java
@@ -16,8 +16,13 @@
 
 package android.telecom;
 
+import static android.Manifest.permission.MODIFY_PHONE_STATE;
+
+import android.annotation.ElapsedRealtimeLong;
+import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.net.Uri;
@@ -319,6 +324,13 @@
     public void onConnectionAdded(Connection connection) {}
 
     /**
+     * Notifies the {@link Conference} of a request to add a new participants to the conference call
+     * @param participants that will be added to this conference call
+     * @hide
+     */
+    public void onAddConferenceParticipants(@NonNull List<Uri> participants) {}
+
+    /**
      * Notifies this Conference, which is in {@code STATE_RINGING}, of
      * a request to accept.
      * For managed {@link ConnectionService}s, this will be called when the user answers a call via
@@ -625,12 +637,12 @@
      * Should be specified in wall-clock time returned by {@link System#currentTimeMillis()}.
      * <p>
      * When setting the connection time, you should always set the connection elapsed time via
-     * {@link #setConnectionStartElapsedRealTime(long)} to ensure the duration is reflected.
+     * {@link #setConnectionStartElapsedRealtimeMillis(long)} to ensure the duration is reflected.
      *
      * @param connectionTimeMillis The connection time, in milliseconds, as returned by
      *                             {@link System#currentTimeMillis()}.
      */
-    public final void setConnectionTime(long connectionTimeMillis) {
+    public final void setConnectionTime(@IntRange(from = 0) long connectionTimeMillis) {
         mConnectTimeMillis = connectionTimeMillis;
     }
 
@@ -646,8 +658,28 @@
      *
      * @param connectionStartElapsedRealTime The connection time, as measured by
      * {@link SystemClock#elapsedRealtime()}.
+     * @deprecated use {@link #setConnectionStartElapsedRealtimeMillis(long)} instead.
      */
+    @Deprecated
     public final void setConnectionStartElapsedRealTime(long connectionStartElapsedRealTime) {
+        setConnectionStartElapsedRealtimeMillis(connectionStartElapsedRealTime);
+    }
+
+    /**
+     * Sets the start time of the {@link Conference} which is the basis for the determining the
+     * duration of the {@link Conference}.
+     * <p>
+     * You should use a value returned by {@link SystemClock#elapsedRealtime()} to ensure that time
+     * zone changes do not impact the conference duration.
+     * <p>
+     * When setting this, you should also set the connection time via
+     * {@link #setConnectionTime(long)}.
+     *
+     * @param connectionStartElapsedRealTime The connection time, as measured by
+     * {@link SystemClock#elapsedRealtime()}.
+     */
+    public final void setConnectionStartElapsedRealtimeMillis(
+            @ElapsedRealtimeLong long connectionStartElapsedRealTime) {
         mConnectionStartElapsedRealTime = connectionStartElapsedRealTime;
     }
 
@@ -668,7 +700,7 @@
      *
      * @return The time at which the {@code Conference} was connected.
      */
-    public final long getConnectionTime() {
+    public final @IntRange(from = 0) long getConnectionTime() {
         return mConnectTimeMillis;
     }
 
@@ -685,11 +717,8 @@
      * has no general use other than to the Telephony framework.
      *
      * @return The elapsed time at which the {@link Conference} was connected.
-     * @hide
      */
-    @SystemApi
-    @TestApi
-    public final long getConnectionStartElapsedRealTime() {
+    public final @ElapsedRealtimeLong long getConnectionStartElapsedRealtimeMillis() {
         return mConnectionStartElapsedRealTime;
     }
 
@@ -987,6 +1016,7 @@
      */
     @SystemApi
     @TestApi
+    @RequiresPermission(MODIFY_PHONE_STATE)
     public void setConferenceState(boolean isConference) {
         for (Listener l : mListeners) {
             l.onConferenceStateChanged(this, isConference);
@@ -1007,6 +1037,7 @@
      */
     @SystemApi
     @TestApi
+    @RequiresPermission(MODIFY_PHONE_STATE)
     public final void setAddress(@NonNull Uri address,
             @TelecomManager.Presentation int presentation) {
         Log.d(this, "setAddress %s", address);
@@ -1113,12 +1144,52 @@
     }
 
     /**
-     * Sends an event associated with this {@code Conference} with associated event extras to the
-     * {@link InCallService} (note: this is identical in concept to
-     * {@link Connection#sendConnectionEvent(String, Bundle)}).
-     * @see Connection#sendConnectionEvent(String, Bundle)
+     * Sends an event associated with this {@link Conference} with associated event extras to the
+     * {@link InCallService}.
+     * <p>
+     * Connection events are used to communicate point in time information from a
+     * {@link ConnectionService} to an {@link InCallService} implementation.  An example of a
+     * custom connection event includes notifying the UI when a WIFI call has been handed over to
+     * LTE, which the InCall UI might use to inform the user that billing charges may apply.  The
+     * Android Telephony framework will send the {@link Connection#EVENT_MERGE_COMPLETE}
+     * connection event when a call to {@link Call#mergeConference()} has completed successfully.
+     * <p>
+     * Events are exposed to {@link InCallService} implementations via
+     * {@link Call.Callback#onConnectionEvent(Call, String, Bundle)}.
+     * <p>
+     * No assumptions should be made as to how an In-Call UI or service will handle these events.
+     * The {@link ConnectionService} must assume that the In-Call UI could even chose to ignore
+     * some events altogether.
+     * <p>
+     * Events should be fully qualified (e.g. {@code com.example.event.MY_EVENT}) to avoid
+     * conflicts between {@link ConnectionService} implementations.  Further, custom
+     * {@link ConnectionService} implementations shall not re-purpose events in the
+     * {@code android.*} namespace, nor shall they define new event types in this namespace.  When
+     * defining a custom event type, ensure the contents of the extras {@link Bundle} is clearly
+     * defined.  Extra keys for this bundle should be named similar to the event type (e.g.
+     * {@code com.example.extra.MY_EXTRA}).
+     * <p>
+     * When defining events and the associated extras, it is important to keep their behavior
+     * consistent when the associated {@link ConnectionService} is updated.  Support for deprecated
+     * events/extras should me maintained to ensure backwards compatibility with older
+     * {@link InCallService} implementations which were built to support the older behavior.
+     * <p>
+     * Expected connection events from the Telephony stack are:
+     * <p>
+     * <ul>
+     *      <li>{@link Connection#EVENT_CALL_HOLD_FAILED} with {@code null} {@code extras} when the
+     *      {@link Conference} could not be held.</li>
+     *      <li>{@link Connection#EVENT_MERGE_START} with {@code null} {@code extras} when a new
+     *      call is being merged into the conference.</li>
+     *      <li>{@link Connection#EVENT_MERGE_COMPLETE} with {@code null} {@code extras} a new call
+     *      has completed being merged into the conference.</li>
+     *      <li>{@link Connection#EVENT_CALL_MERGE_FAILED} with {@code null} {@code extras} a new
+     *      call has failed to merge into the conference (the dialer app can determine which call
+     *      failed to merge based on the fact that the call still exists outside of the conference
+     *      at the end of the merge process).</li>
+     * </ul>
      *
-     * @param event The connection event.
+     * @param event The conference event.
      * @param extras Optional bundle containing extra information associated with the event.
      */
     public void sendConferenceEvent(@NonNull String event, @Nullable Bundle extras) {
diff --git a/telecomm/java/android/telecom/Connection.java b/telecomm/java/android/telecom/Connection.java
index 8049459..3b0ba25 100644
--- a/telecomm/java/android/telecom/Connection.java
+++ b/telecomm/java/android/telecom/Connection.java
@@ -16,9 +16,14 @@
 
 package android.telecom;
 
+import static android.Manifest.permission.MODIFY_PHONE_STATE;
+
+import android.annotation.ElapsedRealtimeLong;
 import android.annotation.IntDef;
+import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.app.Notification;
@@ -376,8 +381,14 @@
     /** Call supports the deflect feature. */
     public static final int CAPABILITY_SUPPORT_DEFLECT = 0x02000000;
 
+    /**
+     * When set, indicates that this {@link Connection} supports initiation of a conference call
+     * by directly adding participants using {@link #onAddConferenceParticipants(List)}.
+     * @hide
+     */
+    public static final int CAPABILITY_ADD_PARTICIPANT = 0x04000000;
     //**********************************************************************************************
-    // Next CAPABILITY value: 0x04000000
+    // Next CAPABILITY value: 0x08000000
     //**********************************************************************************************
 
     /**
@@ -474,7 +485,7 @@
      *
      * @see TelecomManager#EXTRA_USE_ASSISTED_DIALING
      */
-    public static final int PROPERTY_ASSISTED_DIALING_USED = 1 << 9;
+    public static final int PROPERTY_ASSISTED_DIALING = 1 << 9;
 
     /**
      * Set by the framework to indicate that the network has identified a Connection as an emergency
@@ -953,7 +964,9 @@
         if ((capabilities & CAPABILITY_SUPPORT_DEFLECT) == CAPABILITY_SUPPORT_DEFLECT) {
             builder.append(isLong ? " CAPABILITY_SUPPORT_DEFLECT" : " sup_def");
         }
-
+        if ((capabilities & CAPABILITY_ADD_PARTICIPANT) == CAPABILITY_ADD_PARTICIPANT) {
+            builder.append(isLong ? " CAPABILITY_ADD_PARTICIPANT" : " add_participant");
+        }
         builder.append("]");
         return builder.toString();
     }
@@ -2109,19 +2122,24 @@
      */
     @SystemApi
     @TestApi
-    public final long getConnectTimeMillis() {
+    public final @IntRange(from = 0) long getConnectTimeMillis() {
         return mConnectTimeMillis;
     }
 
     /**
      * Retrieves the connection start time of the {@link Connection}, if specified.  A value of
      * {@link Conference#CONNECT_TIME_NOT_SPECIFIED} indicates that Telecom should determine the
-     * start time of the conference.
+     * start time of the connection.
      * <p>
      * Based on the value of {@link SystemClock#elapsedRealtime()}, which ensures that wall-clock
      * changes do not impact the call duration.
      * <p>
      * Used internally in Telephony when migrating conference participant data for IMS conferences.
+     * <p>
+     * The value returned is the same one set using
+     * {@link #setConnectionStartElapsedRealtimeMillis(long)}.  This value is never updated from
+     * the Telecom framework, so no permission enforcement occurs when retrieving the value with
+     * this method.
      *
      * @return The time at which the {@link Connection} was connected.
      *
@@ -2129,7 +2147,7 @@
      */
     @SystemApi
     @TestApi
-    public final long getConnectElapsedTimeMillis() {
+    public final @ElapsedRealtimeLong long getConnectionStartElapsedRealtimeMillis() {
         return mConnectElapsedTimeMillis;
     }
 
@@ -2550,6 +2568,9 @@
      * Sets the time at which a call became active on this Connection. This is set only
      * when a conference call becomes active on this connection.
      * <p>
+     * This time corresponds to the date/time of connection and is stored in the call log in
+     * {@link android.provider.CallLog.Calls#DATE}.
+     * <p>
      * Used by telephony to maintain calls associated with an IMS Conference.
      *
      * @param connectTimeMillis The connection time, in milliseconds.  Should be set using a value
@@ -2559,7 +2580,8 @@
      */
     @SystemApi
     @TestApi
-    public final void setConnectTimeMillis(long connectTimeMillis) {
+    @RequiresPermission(MODIFY_PHONE_STATE)
+    public final void setConnectTimeMillis(@IntRange(from = 0) long connectTimeMillis) {
         mConnectTimeMillis = connectTimeMillis;
     }
 
@@ -2567,15 +2589,23 @@
      * Sets the time at which a call became active on this Connection. This is set only
      * when a conference call becomes active on this connection.
      * <p>
+     * This time is used to establish the duration of a call.  It uses
+     * {@link SystemClock#elapsedRealtime()} to ensure that the call duration is not impacted by
+     * time zone changes during a call.  The difference between the current
+     * {@link SystemClock#elapsedRealtime()} and the value set at the connection start time is used
+     * to populate {@link android.provider.CallLog.Calls#DURATION} in the call log.
+     * <p>
      * Used by telephony to maintain calls associated with an IMS Conference.
+     *
      * @param connectElapsedTimeMillis The connection time, in milliseconds.  Stored in the format
      *                              {@link SystemClock#elapsedRealtime()}.
-     *
      * @hide
      */
     @SystemApi
     @TestApi
-    public final void setConnectionStartElapsedRealTime(long connectElapsedTimeMillis) {
+    @RequiresPermission(MODIFY_PHONE_STATE)
+    public final void setConnectionStartElapsedRealtimeMillis(
+            @ElapsedRealtimeLong long connectElapsedTimeMillis) {
         mConnectElapsedTimeMillis = connectElapsedTimeMillis;
     }
 
@@ -2953,6 +2983,14 @@
     public void onSeparate() {}
 
     /**
+     * Supports initiation of a conference call by directly adding participants to an ongoing call.
+     *
+     * @param participants with which conference call will be formed.
+     * @hide
+     */
+    public void onAddConferenceParticipants(@NonNull List<Uri> participants) {}
+
+    /**
      * Notifies this Connection of a request to abort.
      */
     public void onAbort() {}
diff --git a/telecomm/java/android/telecom/ConnectionService.java b/telecomm/java/android/telecom/ConnectionService.java
index 00c2918..2aea723 100644
--- a/telecomm/java/android/telecom/ConnectionService.java
+++ b/telecomm/java/android/telecom/ConnectionService.java
@@ -18,7 +18,6 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.annotation.RequiresPermission;
 import android.annotation.SdkConstant;
 import android.annotation.SystemApi;
 import android.app.Service;
@@ -142,6 +141,7 @@
     private static final String SESSION_SPLIT_CONFERENCE = "CS.sFC";
     private static final String SESSION_MERGE_CONFERENCE = "CS.mC";
     private static final String SESSION_SWAP_CONFERENCE = "CS.sC";
+    private static final String SESSION_ADD_PARTICIPANT = "CS.aP";
     private static final String SESSION_POST_DIAL_CONT = "CS.oPDC";
     private static final String SESSION_PULL_EXTERNAL_CALL = "CS.pEC";
     private static final String SESSION_SEND_CALL_EVENT = "CS.sCE";
@@ -195,6 +195,7 @@
     private static final int MSG_CREATE_CONFERENCE_COMPLETE = 36;
     private static final int MSG_CREATE_CONFERENCE_FAILED = 37;
     private static final int MSG_REJECT_WITH_REASON = 38;
+    private static final int MSG_ADD_PARTICIPANT = 39;
 
     private static Connection sNullConnection;
 
@@ -627,6 +628,21 @@
         }
 
         @Override
+        public void addConferenceParticipants(String callId, List<Uri> participants,
+                Session.Info sessionInfo) {
+            Log.startSession(sessionInfo, SESSION_ADD_PARTICIPANT);
+            try {
+                SomeArgs args = SomeArgs.obtain();
+                args.arg1 = callId;
+                args.arg2 = participants;
+                args.arg3 = Log.createSubsession();
+                mHandler.obtainMessage(MSG_ADD_PARTICIPANT, args).sendToTarget();
+            } finally {
+                Log.endSession();
+            }
+        }
+
+        @Override
         public void onPostDialContinue(String callId, boolean proceed, Session.Info sessionInfo) {
             Log.startSession(sessionInfo, SESSION_POST_DIAL_CONT);
             try {
@@ -1224,6 +1240,19 @@
                     }
                     break;
                 }
+                case MSG_ADD_PARTICIPANT: {
+                    SomeArgs args = (SomeArgs) msg.obj;
+                    try {
+                        Log.continueSession((Session) args.arg3,
+                                SESSION_HANDLER + SESSION_ADD_PARTICIPANT);
+                        addConferenceParticipants((String) args.arg1, (List<Uri>)args.arg2);
+                    } finally {
+                        args.recycle();
+                        Log.endSession();
+                    }
+                    break;
+                }
+
                 case MSG_ON_POST_DIAL_CONTINUE: {
                     SomeArgs args = (SomeArgs) msg.obj;
                     try {
@@ -1778,7 +1807,7 @@
                         null : conference.getVideoProvider().getInterface(),
                 conference.getVideoState(),
                 conference.getConnectTimeMillis(),
-                conference.getConnectionStartElapsedRealTime(),
+                conference.getConnectionStartElapsedRealtimeMillis(),
                 conference.getStatusHints(),
                 conference.getExtras(),
                 conference.getAddress(),
@@ -1884,7 +1913,7 @@
                         connection.isRingbackRequested(),
                         connection.getAudioModeIsVoip(),
                         connection.getConnectTimeMillis(),
-                        connection.getConnectElapsedTimeMillis(),
+                        connection.getConnectionStartElapsedRealtimeMillis(),
                         connection.getStatusHints(),
                         connection.getDisconnectCause(),
                         createIdList(connection.getConferenceables()),
@@ -2152,6 +2181,17 @@
         }
     }
 
+    private void addConferenceParticipants(String callId, List<Uri> participants) {
+        Log.d(this, "addConferenceParticipants(%s)", callId);
+        if (mConnectionById.containsKey(callId)) {
+            findConnectionForAction(callId, "addConferenceParticipants")
+                    .onAddConferenceParticipants(participants);
+        } else {
+            findConferenceForAction(callId, "addConferenceParticipants")
+                    .onAddConferenceParticipants(participants);
+        }
+    }
+
     /**
      * Notifies a {@link Connection} of a request to pull an external call.
      *
@@ -2374,7 +2414,7 @@
                             null : conference.getVideoProvider().getInterface(),
                     conference.getVideoState(),
                     conference.getConnectTimeMillis(),
-                    conference.getConnectionStartElapsedRealTime(),
+                    conference.getConnectionStartElapsedRealtimeMillis(),
                     conference.getStatusHints(),
                     conference.getExtras(),
                     conference.getAddress(),
@@ -2465,7 +2505,7 @@
                     connection.isRingbackRequested(),
                     connection.getAudioModeIsVoip(),
                     connection.getConnectTimeMillis(),
-                    connection.getConnectElapsedTimeMillis(),
+                    connection.getConnectionStartElapsedRealtimeMillis(),
                     connection.getStatusHints(),
                     connection.getDisconnectCause(),
                     emptyList,
diff --git a/telecomm/java/android/telecom/InCallAdapter.java b/telecomm/java/android/telecom/InCallAdapter.java
index 594c1eb..9d291740 100644
--- a/telecomm/java/android/telecom/InCallAdapter.java
+++ b/telecomm/java/android/telecom/InCallAdapter.java
@@ -283,6 +283,20 @@
     }
 
     /**
+     * Instructs Telecom to pull participants to existing call
+     *
+     * @param callId The unique ID of the call.
+     * @param participants participants to be pulled to existing call.
+     */
+    public void addConferenceParticipants(String callId, List<Uri> participants) {
+        try {
+            mAdapter.addConferenceParticipants(callId, participants);
+        } catch (RemoteException ignored) {
+        }
+    }
+
+
+    /**
      * Instructs Telecom to split the specified call from any conference call with which it may be
      * connected.
      *
diff --git a/telecomm/java/android/telecom/InCallService.java b/telecomm/java/android/telecom/InCallService.java
index ebfa3a1..982e5f3 100644
--- a/telecomm/java/android/telecom/InCallService.java
+++ b/telecomm/java/android/telecom/InCallService.java
@@ -20,6 +20,7 @@
 import android.annotation.SdkConstant;
 import android.annotation.SystemApi;
 import android.app.Service;
+import android.app.UiModeManager;
 import android.bluetooth.BluetoothDevice;
 import android.content.Intent;
 import android.hardware.camera2.CameraManager;
@@ -43,12 +44,32 @@
  * phone calls.
  * <h2>Becoming the Default Phone App</h2>
  * The default dialer/phone app is one which provides the in-call user interface while the device is
- * in a call.  A device is bundled with a system provided default dialer/phone app.  The user may
- * choose a single app to take over this role from the system app.  An app which wishes to fulfill
- * one this role uses the {@code android.app.role.RoleManager} to request that they fill the role.
+ * in a call.  It also provides the user with a means to initiate calls and see a history of calls
+ * on their device.  A device is bundled with a system provided default dialer/phone app.  The user
+ * may choose a single app to take over this role from the system app.  An app which wishes to
+ * fulfill one this role uses the {@link android.app.role.RoleManager} to request that they fill the
+ * {@link android.app.role.RoleManager#ROLE_DIALER} role.
  * <p>
- * An app filling the role of the default phone app provides a user interface while the device is in
- * a call, and the device is not in car mode.
+ * The default phone app provides a user interface while the device is in a call, and the device is
+ * not in car mode (i.e. {@link UiModeManager#getCurrentModeType()} is not
+ * {@link android.content.res.Configuration#UI_MODE_TYPE_CAR}).
+ * <p>
+ * In order to fill the {@link android.app.role.RoleManager#ROLE_DIALER} role, an app must meet a
+ * number of requirements:
+ * <ul>
+ *     <li>It must handle the {@link Intent#ACTION_DIAL} intent.  This means the app must provide
+ *     a dial pad UI for the user to initiate outgoing calls.</li>
+ *     <li>It must fully implement the {@link InCallService} API and provide both an incoming call
+ *     UI, as well as an ongoing call UI.</li>
+ * </ul>
+ * <p>
+ * Note: If the app filling the {@link android.app.role.RoleManager#ROLE_DIALER} crashes during
+ * {@link InCallService} binding, the Telecom framework will automatically fall back to using the
+ * dialer app pre-loaded on the device.  The system will display a notification to the user to let
+ * them know that the app has crashed and that their call was continued using the pre-loaded dialer
+ * app.
+ * <p>
+ * Further, the pre-loaded dialer will ALWAYS be used when the user places an emergency call.
  * <p>
  * Below is an example manifest registration for an {@code InCallService}. The meta-data
  * {@link TelecomManager#METADATA_IN_CALL_SERVICE_UI} indicates that this particular
@@ -82,6 +103,11 @@
  *           <action android:name="android.intent.action.DIAL" />
  *           <category android:name="android.intent.category.DEFAULT" />
  *      </intent-filter>
+ *      <intent-filter>
+ *           <action android:name="android.intent.action.DIAL" />
+ *           <category android:name="android.intent.category.DEFAULT" />
+ *           <data android:scheme="tel" />
+ *      </intent-filter>
  * </activity>
  * }
  * </pre>
@@ -111,6 +137,7 @@
  *         }
  *     }
  * }
+ * }
  * </pre>
  * <p id="incomingCallNotification">
  * <h3>Showing the Incoming Call Notification</h3>
diff --git a/telecomm/java/android/telecom/PhoneAccount.java b/telecomm/java/android/telecom/PhoneAccount.java
index abb210f..6ae4a08 100644
--- a/telecomm/java/android/telecom/PhoneAccount.java
+++ b/telecomm/java/android/telecom/PhoneAccount.java
@@ -16,7 +16,10 @@
 
 package android.telecom;
 
+import static android.Manifest.permission.MODIFY_PHONE_STATE;
+
 import android.annotation.NonNull;
+import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.content.Intent;
@@ -605,7 +608,8 @@
          * time. By default, there is no group Id for a {@link PhoneAccount} (an empty String). Only
          * grouped {@link PhoneAccount}s with the same {@link ConnectionService} can be replaced.
          * <p>
-         * Note: This is an API specific to the Telephony stack.
+         * Note: This is an API specific to the Telephony stack; the group Id will be ignored for
+         * callers not holding the correct permission.
          *
          * @param groupId The group Id of the {@link PhoneAccount} that will replace any other
          * registered {@link PhoneAccount} in Telecom with the same Group Id.
@@ -614,6 +618,7 @@
          */
         @SystemApi
         @TestApi
+        @RequiresPermission(MODIFY_PHONE_STATE)
         public @NonNull Builder setGroupId(@NonNull String groupId) {
             if (groupId != null) {
                 mGroupId = groupId;
diff --git a/telecomm/java/android/telecom/TelecomManager.java b/telecomm/java/android/telecom/TelecomManager.java
index 7e5fd46..a7024f9 100644
--- a/telecomm/java/android/telecom/TelecomManager.java
+++ b/telecomm/java/android/telecom/TelecomManager.java
@@ -802,8 +802,8 @@
      * automatically add dialing prefixes when placing international calls.
      * <p>
      * Setting this extra on the outgoing call extras will cause the
-     * {@link Connection#PROPERTY_ASSISTED_DIALING_USED} property and
-     * {@link Call.Details#PROPERTY_ASSISTED_DIALING_USED} property to be set on the
+     * {@link Connection#PROPERTY_ASSISTED_DIALING} property and
+     * {@link Call.Details#PROPERTY_ASSISTED_DIALING} property to be set on the
      * {@link Connection}/{@link Call} in question.  When the call is logged to the call log, the
      * {@link android.provider.CallLog.Calls#FEATURES_ASSISTED_DIALING_USED} call feature is set to
      * indicate that assisted dialing was used for the call.
@@ -1368,7 +1368,7 @@
     /**
      * Used to determine the currently selected default dialer package for a specific user.
      *
-     * @param userId the user id to query the default dialer package for.
+     * @param userHandle the user id to query the default dialer package for.
      * @return package name for the default dialer package or null if no package has been
      *         selected as the default dialer.
      * @hide
@@ -1376,10 +1376,11 @@
     @SystemApi
     @TestApi
     @RequiresPermission(READ_PRIVILEGED_PHONE_STATE)
-    public @Nullable String getDefaultDialerPackage(int userId) {
+    public @Nullable String getDefaultDialerPackage(@NonNull UserHandle userHandle) {
         try {
             if (isServiceConnected()) {
-                return getTelecomService().getDefaultDialerPackageForUser(userId);
+                return getTelecomService().getDefaultDialerPackageForUser(
+                        userHandle.getIdentifier());
             }
         } catch (RemoteException e) {
             Log.e(TAG, "RemoteException attempting to get the default dialer package name.", e);
diff --git a/telecomm/java/com/android/internal/telecom/IConnectionService.aidl b/telecomm/java/com/android/internal/telecom/IConnectionService.aidl
index 4249dff..a397d77 100644
--- a/telecomm/java/com/android/internal/telecom/IConnectionService.aidl
+++ b/telecomm/java/com/android/internal/telecom/IConnectionService.aidl
@@ -104,6 +104,9 @@
 
     void swapConference(String conferenceCallId, in Session.Info sessionInfo);
 
+    void addConferenceParticipants(String CallId, in List<Uri> participants,
+    in Session.Info sessionInfo);
+
     void onPostDialContinue(String callId, boolean proceed, in Session.Info sessionInfo);
 
     void pullExternalCall(String callId, in Session.Info sessionInfo);
diff --git a/telecomm/java/com/android/internal/telecom/IInCallAdapter.aidl b/telecomm/java/com/android/internal/telecom/IInCallAdapter.aidl
index eb2d714..9beff22 100644
--- a/telecomm/java/com/android/internal/telecom/IInCallAdapter.aidl
+++ b/telecomm/java/com/android/internal/telecom/IInCallAdapter.aidl
@@ -67,6 +67,8 @@
 
     void swapConference(String callId);
 
+    void addConferenceParticipants(String callId, in List<Uri> participants);
+
     void turnOnProximitySensor();
 
     void turnOffProximitySensor(boolean screenOnImmediately);
diff --git a/telephony/java/android/telephony/AccessNetworkConstants.java b/telephony/java/android/telephony/AccessNetworkConstants.java
index 610eef8..01abb26 100644
--- a/telephony/java/android/telephony/AccessNetworkConstants.java
+++ b/telephony/java/android/telephony/AccessNetworkConstants.java
@@ -153,22 +153,55 @@
         public static final int BAND_12 = 12;
         public static final int BAND_13 = 13;
         public static final int BAND_14 = 14;
-        /** band 15, 16, 17, 18 are reserved */
+        // band 15, 16, 17, 18 are reserved
         public static final int BAND_19 = 19;
         public static final int BAND_20 = 20;
         public static final int BAND_21 = 21;
         public static final int BAND_22 = 22;
-        /** band 23, 24 are reserved */
+        // band 23, 24 are reserved
         public static final int BAND_25 = 25;
         public static final int BAND_26 = 26;
 
-        /** Frequency bands for TD-SCDMA. Defined in 3GPP TS 25.102, Table 5.2. */
+        // Frequency bands for TD-SCDMA. Defined in 3GPP TS 25.102, Table 5.2.
+
+        /**
+         * Band A
+         * 1900 - 1920 MHz: Uplink and downlink transmission
+         * 2010 - 2025 MHz: Uplink and downlink transmission
+         */
         public static final int BAND_A = 101;
+
+        /**
+         * Band B
+         * 1850 - 1910 MHz: Uplink and downlink transmission
+         * 1930 - 1990 MHz: Uplink and downlink transmission
+         */
         public static final int BAND_B = 102;
+
+        /**
+         * Band C
+         * 1910 - 1930 MHz: Uplink and downlink transmission
+         */
         public static final int BAND_C = 103;
+
+        /**
+         * Band D
+         * 2570 - 2620 MHz: Uplink and downlink transmission
+         */
         public static final int BAND_D = 104;
+
+        /**
+         * Band E
+         * 2300—2400 MHz: Uplink and downlink transmission
+         */
         public static final int BAND_E = 105;
+
+        /**
+         * Band F
+         * 1880 - 1920 MHz: Uplink and downlink transmission
+         */
         public static final int BAND_F = 106;
+
         /** @hide */
         private UtranBand() {}
     }
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 3823133..05a29e9 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -1089,6 +1089,14 @@
             "support_adhoc_conference_calls_bool";
 
     /**
+     * Determines whether conference participants can be added to existing call.  When {@code true},
+     * adding conference participants to existing call is supported, {@code false otherwise}.
+     * @hide
+     */
+    public static final String KEY_SUPPORT_ADD_CONFERENCE_PARTICIPANTS_BOOL =
+            "support_add_conference_participants_bool";
+
+    /**
      * Determines whether conference calls are supported by a carrier.  When {@code true},
      * conference calling is supported, {@code false otherwise}.
      */
@@ -3571,6 +3579,7 @@
         sDefaults.putBoolean(KEY_IGNORE_RTT_MODE_SETTING_BOOL, false);
         sDefaults.putInt(KEY_CDMA_3WAYCALL_FLASH_DELAY_INT , 0);
         sDefaults.putBoolean(KEY_SUPPORT_ADHOC_CONFERENCE_CALLS_BOOL, false);
+        sDefaults.putBoolean(KEY_SUPPORT_ADD_CONFERENCE_PARTICIPANTS_BOOL, false);
         sDefaults.putBoolean(KEY_SUPPORT_CONFERENCE_CALL_BOOL, true);
         sDefaults.putBoolean(KEY_SUPPORT_IMS_CONFERENCE_CALL_BOOL, true);
         sDefaults.putBoolean(KEY_SUPPORT_MANAGE_IMS_CONFERENCE_CALL_BOOL, true);
diff --git a/telephony/java/android/telephony/CellInfo.java b/telephony/java/android/telephony/CellInfo.java
index ec86c14..bfa209b 100644
--- a/telephony/java/android/telephony/CellInfo.java
+++ b/telephony/java/android/telephony/CellInfo.java
@@ -16,9 +16,9 @@
 
 package android.telephony;
 
+import android.annotation.ElapsedRealtimeLong;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
-import android.annotation.SuppressLint;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.hardware.radio.V1_4.CellInfo.Info;
 import android.os.Parcel;
@@ -178,18 +178,18 @@
     /**
      * Approximate time this cell information was received from the modem.
      *
-     * @return a time stamp in nanos since boot.
+     * @return a time stamp in millis since boot.
      */
-    @SuppressLint("MethodNameUnits")
-    public long getTimestampNanos() {
-        return mTimeStamp;
+    @ElapsedRealtimeLong
+    public long getTimestampMillis() {
+        return mTimeStamp / 1000000;
     }
 
     /**
      * Approximate time this cell information was received from the modem.
      *
      * @return a time stamp in nanos since boot.
-     * @deprecated Use {@link #getTimestampNanos} instead.
+     * @deprecated Use {@link #getTimestampMillis} instead.
      */
     @Deprecated
     public long getTimeStamp() {
diff --git a/telephony/java/android/telephony/PreciseDisconnectCause.java b/telephony/java/android/telephony/PreciseDisconnectCause.java
index 54980a2..250d9e8 100644
--- a/telephony/java/android/telephony/PreciseDisconnectCause.java
+++ b/telephony/java/android/telephony/PreciseDisconnectCause.java
@@ -256,337 +256,6 @@
     /** Access Blocked by CDMA network. */
     public static final int CDMA_ACCESS_BLOCKED                              = 1009;
 
-    /** Mapped from ImsReasonInfo */
-    // TODO: remove ImsReasonInfo from preciseDisconnectCause
-    /* The passed argument is an invalid */
-    /** @hide */
-    public static final int LOCAL_ILLEGAL_ARGUMENT                           = 1200;
-    // The operation is invoked in invalid call state
-    /** @hide */
-    public static final int LOCAL_ILLEGAL_STATE                              = 1201;
-    // IMS service internal error
-    /** @hide */
-    public static final int LOCAL_INTERNAL_ERROR                             = 1202;
-    // IMS service goes down (service connection is lost)
-    /** @hide */
-    public static final int LOCAL_IMS_SERVICE_DOWN                           = 1203;
-    // No pending incoming call exists
-    /** @hide */
-    public static final int LOCAL_NO_PENDING_CALL                            = 1204;
-    // Service unavailable; by power off
-    /** @hide */
-    public static final int LOCAL_POWER_OFF                                  = 1205;
-    // Service unavailable; by low battery
-    /** @hide */
-    public static final int LOCAL_LOW_BATTERY                                = 1206;
-    // Service unavailable; by out of service (data service state)
-    /** @hide */
-    public static final int LOCAL_NETWORK_NO_SERVICE                         = 1207;
-    /* Service unavailable; by no LTE coverage
-     * (VoLTE is not supported even though IMS is registered)
-     */
-    /** @hide */
-    public static final int LOCAL_NETWORK_NO_LTE_COVERAGE                    = 1208;
-    /** Service unavailable; by located in roaming area */
-    /** @hide */
-    public static final int LOCAL_NETWORK_ROAMING                            = 1209;
-    /** Service unavailable; by IP changed */
-    /** @hide */
-    public static final int LOCAL_NETWORK_IP_CHANGED                         = 1210;
-    /** Service unavailable; other */
-    /** @hide */
-    public static final int LOCAL_SERVICE_UNAVAILABLE                        = 1211;
-    /* Service unavailable; IMS connection is lost (IMS is not registered) */
-    /** @hide */
-    public static final int LOCAL_NOT_REGISTERED                             = 1212;
-    /** Max call exceeded */
-    /** @hide */
-    public static final int LOCAL_MAX_CALL_EXCEEDED                          = 1213;
-    /** Call decline */
-    /** @hide */
-    public static final int LOCAL_CALL_DECLINE                               = 1214;
-    /** SRVCC is in progress */
-    /** @hide */
-    public static final int LOCAL_CALL_VCC_ON_PROGRESSING                    = 1215;
-    /** Resource reservation is failed (QoS precondition) */
-    /** @hide */
-    public static final int LOCAL_CALL_RESOURCE_RESERVATION_FAILED           = 1216;
-    /** Retry CS call; VoLTE service can't be provided by the network or remote end
-     *  Resolve the extra code(EXTRA_CODE_CALL_RETRY_*) if the below code is set
-     *  @hide
-     */
-    public static final int LOCAL_CALL_CS_RETRY_REQUIRED                     = 1217;
-    /** Retry VoLTE call; VoLTE service can't be provided by the network temporarily */
-    /** @hide */
-    public static final int LOCAL_CALL_VOLTE_RETRY_REQUIRED                  = 1218;
-    /** IMS call is already terminated (in TERMINATED state) */
-    /** @hide */
-    public static final int LOCAL_CALL_TERMINATED                            = 1219;
-    /** Handover not feasible */
-    /** @hide */
-    public static final int LOCAL_HO_NOT_FEASIBLE                            = 1220;
-
-    /** 1xx waiting timer is expired after sending INVITE request (MO only) */
-    /** @hide */
-    public static final int TIMEOUT_1XX_WAITING                              = 1221;
-    /** User no answer during call setup operation (MO/MT)
-     *  MO : 200 OK to INVITE request is not received,
-     *  MT : No action from user after alerting the call
-     *  @hide
-     */
-    public static final int TIMEOUT_NO_ANSWER                                = 1222;
-    /** User no answer during call update operation (MO/MT)
-     *  MO : 200 OK to re-INVITE request is not received,
-     *  MT : No action from user after alerting the call
-     *  @hide
-     */
-    public static final int TIMEOUT_NO_ANSWER_CALL_UPDATE                    = 1223;
-
-    /**
-     * STATUSCODE (SIP response code) (IMS -> Telephony)
-     */
-    /** SIP request is redirected */
-    /** @hide */
-    public static final int SIP_REDIRECTED                                   = 1300;
-    /** 4xx responses */
-    /** 400 : Bad Request */
-    /** @hide */
-    public static final int SIP_BAD_REQUEST                                  = 1310;
-    /** 403 : Forbidden */
-    /** @hide */
-    public static final int SIP_FORBIDDEN                                    = 1311;
-    /** 404 : Not Found */
-    /** @hide */
-    public static final int SIP_NOT_FOUND                                    = 1312;
-    /** 415 : Unsupported Media Type
-     *  416 : Unsupported URI Scheme
-     *  420 : Bad Extension
-     */
-    /** @hide */
-    public static final int SIP_NOT_SUPPORTED                                = 1313;
-    /** 408 : Request Timeout */
-    /** @hide */
-    public static final int SIP_REQUEST_TIMEOUT                              = 1314;
-    /** 480 : Temporarily Unavailable */
-    /** @hide */
-    public static final int SIP_TEMPRARILY_UNAVAILABLE                       = 1315;
-    /** 484 : Address Incomplete */
-    /** @hide */
-    public static final int SIP_BAD_ADDRESS                                  = 1316;
-    /** 486 : Busy Here
-     *  600 : Busy Everywhere
-     */
-    /** @hide */
-    public static final int SIP_BUSY                                         = 1317;
-    /** 487 : Request Terminated */
-    /** @hide */
-    public static final int SIP_REQUEST_CANCELLED                            = 1318;
-    /** 406 : Not Acceptable
-     *  488 : Not Acceptable Here
-     *  606 : Not Acceptable
-     */
-    /** @hide */
-    public static final int SIP_NOT_ACCEPTABLE                               = 1319;
-    /** 410 : Gone
-     *  604 : Does Not Exist Anywhere
-     */
-    /** @hide */
-    public static final int SIP_NOT_REACHABLE                                = 1320;
-    /** Others */
-    /** @hide */
-    public static final int SIP_CLIENT_ERROR                                 = 1321;
-    /** 481 : Transaction Does Not Exist */
-    /** @hide */
-    public static final int SIP_TRANSACTION_DOES_NOT_EXIST                   = 1322;
-    /** 5xx responses
-     *  501 : Server Internal Error
-     */
-    /** @hide */
-    public static final int SIP_SERVER_INTERNAL_ERROR                        = 1330;
-    /** 503 : Service Unavailable */
-    /** @hide */
-    public static final int SIP_SERVICE_UNAVAILABLE                          = 1331;
-    /** 504 : Server Time-out */
-    /** @hide */
-    public static final int SIP_SERVER_TIMEOUT                               = 1332;
-    /** Others */
-    /** @hide */
-    public static final int SIP_SERVER_ERROR                                 = 1333;
-    /** 6xx responses
-     *  603 : Decline
-     */
-    /** @hide */
-    public static final int SIP_USER_REJECTED                                = 1340;
-    /** Others */
-    /** @hide */
-    public static final int SIP_GLOBAL_ERROR                                 = 1341;
-    /** Emergency failure */
-    /** @hide */
-    public static final int EMERGENCY_TEMP_FAILURE                           = 1342;
-    /** @hide */
-    public static final int EMERGENCY_PERM_FAILURE                           = 1343;
-    /** Media resource initialization failed */
-    /** @hide */
-    public static final int MEDIA_INIT_FAILED                                = 1400;
-    /** RTP timeout (no audio / video traffic in the session) */
-    /** @hide */
-    public static final int MEDIA_NO_DATA                                    = 1401;
-    /** Media is not supported; so dropped the call */
-    /** @hide */
-    public static final int MEDIA_NOT_ACCEPTABLE                             = 1402;
-    /** Unknown media related errors */
-    /** @hide */
-    public static final int MEDIA_UNSPECIFIED                                = 1403;
-    /** User triggers the call end */
-    /** @hide */
-    public static final int USER_TERMINATED                                  = 1500;
-    /** No action while an incoming call is ringing */
-    /** @hide */
-    public static final int USER_NOANSWER                                    = 1501;
-    /** User ignores an incoming call */
-    /** @hide */
-    public static final int USER_IGNORE                                      = 1502;
-    /** User declines an incoming call */
-    /** @hide */
-    public static final int USER_DECLINE                                     = 1503;
-    /** Device declines/ends a call due to low battery */
-    /** @hide */
-    public static final int LOW_BATTERY                                      = 1504;
-    /** Device declines call due to blacklisted call ID */
-    /** @hide */
-    public static final int BLACKLISTED_CALL_ID                              = 1505;
-    /** The call is terminated by the network or remote user */
-    /** @hide */
-    public static final int USER_TERMINATED_BY_REMOTE                        = 1510;
-
-    /**
-     * UT
-     */
-    /** @hide */
-    public static final int UT_NOT_SUPPORTED                                 = 1800;
-    /** @hide */
-    public static final int UT_SERVICE_UNAVAILABLE                           = 1801;
-    /** @hide */
-    public static final int UT_OPERATION_NOT_ALLOWED                         = 1802;
-    /** @hide */
-    public static final int UT_NETWORK_ERROR                                 = 1803;
-    /** @hide */
-    public static final int UT_CB_PASSWORD_MISMATCH                          = 1804;
-
-    /**
-     * ECBM
-     * @hide
-     */
-    public static final int ECBM_NOT_SUPPORTED                               = 1900;
-
-    /**
-     * Fail code used to indicate that Multi-endpoint is not supported by the Ims framework.
-     * @hide
-     */
-    public static final int MULTIENDPOINT_NOT_SUPPORTED                      = 1901;
-
-    /**
-     * CALL DROP error codes (Call could drop because of many reasons like Network not available,
-     *  handover, failed, etc)
-     */
-
-    /**
-     * CALL DROP error code for the case when a device is ePDG capable and when the user is on an
-     * active wifi call and at the edge of coverage and there is no qualified LTE network available
-     * to handover the call to. We get a handover NOT_TRIGERRED message from the modem. This error
-     * code is received as part of the handover message.
-     * @hide
-     */
-    public static final int CALL_DROP_IWLAN_TO_LTE_UNAVAILABLE               = 2000;
-
-    /**
-     * MT call has ended due to a release from the network
-     * because the call was answered elsewhere
-     * @hide
-     */
-    public static final int ANSWERED_ELSEWHERE                               = 2100;
-
-    /**
-     * For MultiEndpoint - Call Pull request has failed
-     * @hide
-     */
-    public static final int CALL_PULL_OUT_OF_SYNC                            = 2101;
-
-    /**
-     * For MultiEndpoint - Call has been pulled from primary to secondary
-     * @hide
-     */
-    public static final int CALL_PULLED                                      = 2102;
-
-    /**
-     * Supplementary services (HOLD/RESUME) failure error codes.
-     * Values for Supplemetary services failure - Failed, Cancelled and Re-Invite collision.
-     * @hide
-     */
-    public static final int SUPP_SVC_FAILED                                  = 2300;
-    /** @hide */
-    public static final int SUPP_SVC_CANCELLED                               = 2301;
-    /** @hide */
-    public static final int SUPP_SVC_REINVITE_COLLISION                      = 2302;
-
-    /**
-     * DPD Procedure received no response or send failed
-     * @hide
-     */
-    public static final int IWLAN_DPD_FAILURE                                = 2400;
-
-    /**
-     * Establishment of the ePDG Tunnel Failed
-     * @hide
-     */
-    public static final int EPDG_TUNNEL_ESTABLISH_FAILURE                    = 2500;
-
-    /**
-     * Re-keying of the ePDG Tunnel Failed; may not always result in teardown
-     * @hide
-     */
-    public static final int EPDG_TUNNEL_REKEY_FAILURE                        = 2501;
-
-    /**
-     * Connection to the packet gateway is lost
-     * @hide
-     */
-    public static final int EPDG_TUNNEL_LOST_CONNECTION                      = 2502;
-
-    /**
-     * The maximum number of calls allowed has been reached.  Used in a multi-endpoint scenario
-     * where the number of calls across all connected devices has reached the maximum.
-     * @hide
-     */
-    public static final int MAXIMUM_NUMBER_OF_CALLS_REACHED                  = 2503;
-
-    /**
-     * Similar to {@link #CODE_LOCAL_CALL_DECLINE}, except indicates that a remote device has
-     * declined the call.  Used in a multi-endpoint scenario where a remote device declined an
-     * incoming call.
-     * @hide
-     */
-    public static final int REMOTE_CALL_DECLINE                              = 2504;
-
-    /**
-     * Indicates the call was disconnected due to the user reaching their data limit.
-     * @hide
-     */
-    public static final int DATA_LIMIT_REACHED                               = 2505;
-
-    /**
-     * Indicates the call was disconnected due to the user disabling cellular data.
-     * @hide
-     */
-    public static final int DATA_DISABLED                                    = 2506;
-
-    /**
-     * Indicates a call was disconnected due to loss of wifi signal.
-     * @hide
-     */
-    public static final int WIFI_LOST                                        = 2507;
-
-
     /* OEM specific error codes. To be used by OEMs when they don't want to
        reveal error code which would be replaced by ERROR_UNSPECIFIED */
     public static final int OEM_CAUSE_1                                      = 0xf001;
diff --git a/telephony/java/android/telephony/SignalStrength.java b/telephony/java/android/telephony/SignalStrength.java
index 483ccc4..16fbd07 100644
--- a/telephony/java/android/telephony/SignalStrength.java
+++ b/telephony/java/android/telephony/SignalStrength.java
@@ -16,8 +16,8 @@
 
 package android.telephony;
 
+import android.annotation.ElapsedRealtimeLong;
 import android.annotation.NonNull;
-import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.os.Build;
@@ -79,8 +79,9 @@
     /* The type of signal measurement */
     private static final String MEASUREMENT_TYPE_RSCP = "rscp";
 
-    // timeStamp of signalStrength in nanoseconds since boot
-    private long mTimestamp = Long.MAX_VALUE;
+    // Timestamp of SignalStrength since boot
+    // Effectively final. Timestamp is set during construction of SignalStrength
+    private long mTimestampMillis;
 
     CellSignalStrengthCdma mCdma;
     CellSignalStrengthGsm mGsm;
@@ -140,7 +141,7 @@
         mTdscdma = tdscdma;
         mLte = lte;
         mNr = nr;
-        mTimestamp = SystemClock.elapsedRealtimeNanos();
+        mTimestampMillis = SystemClock.elapsedRealtime();
     }
 
     /**
@@ -275,7 +276,6 @@
         mTdscdma.updateLevel(cc, ss);
         mLte.updateLevel(cc, ss);
         mNr.updateLevel(cc, ss);
-        mTimestamp = SystemClock.elapsedRealtimeNanos();
     }
 
     /**
@@ -301,7 +301,7 @@
         mTdscdma = new CellSignalStrengthTdscdma(s.mTdscdma);
         mLte = new CellSignalStrengthLte(s.mLte);
         mNr = new CellSignalStrengthNr(s.mNr);
-        mTimestamp = s.getTimestampNanos();
+        mTimestampMillis = s.getTimestampMillis();
     }
 
     /**
@@ -319,7 +319,7 @@
         mTdscdma = in.readParcelable(CellSignalStrengthTdscdma.class.getClassLoader());
         mLte = in.readParcelable(CellSignalStrengthLte.class.getClassLoader());
         mNr = in.readParcelable(CellSignalStrengthLte.class.getClassLoader());
-        mTimestamp = in.readLong();
+        mTimestampMillis = in.readLong();
     }
 
     /**
@@ -332,15 +332,17 @@
         out.writeParcelable(mTdscdma, flags);
         out.writeParcelable(mLte, flags);
         out.writeParcelable(mNr, flags);
-        out.writeLong(mTimestamp);
+        out.writeLong(mTimestampMillis);
     }
 
     /**
-     * @return mTimestamp in nanoseconds
+     * @return timestamp in milliseconds since boot for {@link SignalStrength}.
+     * This timestamp reports the approximate time that the signal was measured and reported
+     * by the modem. It can be used to compare the recency of {@link SignalStrength} instances.
      */
-    @SuppressLint("MethodNameUnits")
-    public long getTimestampNanos() {
-        return mTimestamp;
+    @ElapsedRealtimeLong
+    public long getTimestampMillis() {
+        return mTimestampMillis;
     }
 
    /**
diff --git a/tests/net/common/java/android/net/NetworkCapabilitiesTest.java b/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
index efea91a..3e4f3d8 100644
--- a/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
+++ b/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
@@ -272,24 +272,10 @@
         netCap.setOwnerUid(123);
         assertParcelingIsLossless(netCap);
         netCap.setSSID(TEST_SSID);
-        assertParcelSane(netCap, 15);
+        assertParcelSane(netCap, 13);
     }
 
     @Test
-    public void testParcelNetworkCapabilitiesWithRequestorUidAndPackageName() {
-        final NetworkCapabilities netCap = new NetworkCapabilities()
-                .addCapability(NET_CAPABILITY_INTERNET)
-                .setRequestorUid(9304)
-                .setRequestorPackageName("com.android.test")
-                .addCapability(NET_CAPABILITY_EIMS)
-                .addCapability(NET_CAPABILITY_NOT_METERED);
-        assertParcelingIsLossless(netCap);
-        netCap.setSSID(TEST_SSID);
-        assertParcelSane(netCap, 15);
-    }
-
-
-    @Test
     public void testOemPaid() {
         NetworkCapabilities nc = new NetworkCapabilities();
         // By default OEM_PAID is neither in the unwanted or required lists and the network is not
diff --git a/tests/net/java/android/net/ConnectivityManagerTest.java b/tests/net/java/android/net/ConnectivityManagerTest.java
index d6bf334..7ede144 100644
--- a/tests/net/java/android/net/ConnectivityManagerTest.java
+++ b/tests/net/java/android/net/ConnectivityManagerTest.java
@@ -212,8 +212,7 @@
         ArgumentCaptor<Messenger> captor = ArgumentCaptor.forClass(Messenger.class);
 
         // register callback
-        when(mService.requestNetwork(
-                any(), captor.capture(), anyInt(), any(), anyInt(), any()))
+        when(mService.requestNetwork(any(), captor.capture(), anyInt(), any(), anyInt()))
                 .thenReturn(request);
         manager.requestNetwork(request, callback, handler);
 
@@ -241,8 +240,7 @@
         ArgumentCaptor<Messenger> captor = ArgumentCaptor.forClass(Messenger.class);
 
         // register callback
-        when(mService.requestNetwork(
-                any(), captor.capture(), anyInt(), any(), anyInt(), any()))
+        when(mService.requestNetwork(any(), captor.capture(), anyInt(), any(), anyInt()))
                 .thenReturn(req1);
         manager.requestNetwork(req1, callback, handler);
 
@@ -260,8 +258,7 @@
         verify(callback, timeout(100).times(0)).onLosing(any(), anyInt());
 
         // callback can be registered again
-        when(mService.requestNetwork(
-                any(), captor.capture(), anyInt(), any(), anyInt(), any()))
+        when(mService.requestNetwork(any(), captor.capture(), anyInt(), any(), anyInt()))
                 .thenReturn(req2);
         manager.requestNetwork(req2, callback, handler);
 
@@ -285,8 +282,7 @@
         info.targetSdkVersion = VERSION_CODES.N_MR1 + 1;
 
         when(mCtx.getApplicationInfo()).thenReturn(info);
-        when(mService.requestNetwork(any(), any(), anyInt(), any(), anyInt(), any()))
-                .thenReturn(request);
+        when(mService.requestNetwork(any(), any(), anyInt(), any(), anyInt())).thenReturn(request);
 
         Handler handler = new Handler(Looper.getMainLooper());
         manager.requestNetwork(request, callback, handler);
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index f40e57f..8da1a5b 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -107,7 +107,6 @@
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
@@ -306,7 +305,6 @@
     private static final String MOBILE_IFNAME = "test_rmnet_data0";
     private static final String WIFI_IFNAME = "test_wlan0";
     private static final String WIFI_WOL_IFNAME = "test_wlan_wol";
-    private static final String TEST_PACKAGE_NAME = "com.android.test.package";
     private static final String[] EMPTY_STRING_ARRAY = new String[0];
 
     private MockContext mServiceContext;
@@ -656,7 +654,7 @@
 
             if (mNmValidationRedirectUrl != null) {
                 mNmCallbacks.showProvisioningNotification(
-                        "test_provisioning_notif_action", TEST_PACKAGE_NAME);
+                        "test_provisioning_notif_action", "com.android.test.package");
                 mNmProvNotificationRequested = true;
             }
         }
@@ -2974,7 +2972,7 @@
             networkCapabilities.addTransportType(TRANSPORT_WIFI)
                     .setNetworkSpecifier(new MatchAllNetworkSpecifier());
             mService.requestNetwork(networkCapabilities, null, 0, null,
-                    ConnectivityManager.TYPE_WIFI, TEST_PACKAGE_NAME);
+                    ConnectivityManager.TYPE_WIFI);
         });
 
         class NonParcelableSpecifier extends NetworkSpecifier {
@@ -3013,12 +3011,31 @@
     }
 
     @Test
-    public void testNetworkRequestUidSpoofSecurityException() throws Exception {
+    public void testNetworkSpecifierUidSpoofSecurityException() throws Exception {
+        class UidAwareNetworkSpecifier extends NetworkSpecifier implements Parcelable {
+            @Override
+            public boolean satisfiedBy(NetworkSpecifier other) {
+                return true;
+            }
+
+            @Override
+            public void assertValidFromUid(int requestorUid) {
+                throw new SecurityException("failure");
+            }
+
+            @Override
+            public int describeContents() { return 0; }
+            @Override
+            public void writeToParcel(Parcel dest, int flags) {}
+        }
+
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
         mWiFiNetworkAgent.connect(false);
-        NetworkRequest networkRequest = newWifiRequestBuilder().build();
+
+        UidAwareNetworkSpecifier networkSpecifier = new UidAwareNetworkSpecifier();
+        NetworkRequest networkRequest = newWifiRequestBuilder().setNetworkSpecifier(
+                networkSpecifier).build();
         TestNetworkCallback networkCallback = new TestNetworkCallback();
-        doThrow(new SecurityException()).when(mAppOpsManager).checkPackage(anyInt(), anyString());
         assertThrows(SecurityException.class, () -> {
             mCm.requestNetwork(networkRequest, networkCallback);
         });
diff --git a/wifi/java/android/net/wifi/WifiNetworkAgentSpecifier.java b/wifi/java/android/net/wifi/WifiNetworkAgentSpecifier.java
index 20fbc9f..24aa23a 100644
--- a/wifi/java/android/net/wifi/WifiNetworkAgentSpecifier.java
+++ b/wifi/java/android/net/wifi/WifiNetworkAgentSpecifier.java
@@ -200,6 +200,12 @@
     }
 
     @Override
+    public void assertValidFromUid(int requestorUid) {
+        throw new IllegalStateException("WifiNetworkAgentSpecifier should never be used "
+                + "for requests.");
+    }
+
+    @Override
     public NetworkSpecifier redact() {
         return null;
     }
diff --git a/wifi/java/android/net/wifi/WifiNetworkSpecifier.java b/wifi/java/android/net/wifi/WifiNetworkSpecifier.java
index e1d3c43..6c2d7ff 100644
--- a/wifi/java/android/net/wifi/WifiNetworkSpecifier.java
+++ b/wifi/java/android/net/wifi/WifiNetworkSpecifier.java
@@ -598,4 +598,12 @@
         // not make much sense!
         return equals(other);
     }
+
+    /** @hide */
+    @Override
+    public void assertValidFromUid(int requestorUid) {
+        if (this.requestorUid != requestorUid) {
+            throw new SecurityException("mismatched UIDs");
+        }
+    }
 }
diff --git a/wifi/java/android/net/wifi/aware/WifiAwareAgentNetworkSpecifier.java b/wifi/java/android/net/wifi/aware/WifiAwareAgentNetworkSpecifier.java
index 282fda8..9164d04 100644
--- a/wifi/java/android/net/wifi/aware/WifiAwareAgentNetworkSpecifier.java
+++ b/wifi/java/android/net/wifi/aware/WifiAwareAgentNetworkSpecifier.java
@@ -144,6 +144,12 @@
     }
 
     @Override
+    public void assertValidFromUid(int requestorUid) {
+        throw new SecurityException(
+                "WifiAwareAgentNetworkSpecifier should not be used in network requests");
+    }
+
+    @Override
     public NetworkSpecifier redact() {
         return null;
     }
diff --git a/wifi/java/android/net/wifi/aware/WifiAwareNetworkSpecifier.java b/wifi/java/android/net/wifi/aware/WifiAwareNetworkSpecifier.java
index ad656e1..0511f24 100644
--- a/wifi/java/android/net/wifi/aware/WifiAwareNetworkSpecifier.java
+++ b/wifi/java/android/net/wifi/aware/WifiAwareNetworkSpecifier.java
@@ -289,6 +289,14 @@
         return sb.toString();
     }
 
+    /** @hide */
+    @Override
+    public void assertValidFromUid(int requestorUid) {
+        if (this.requestorUid != requestorUid) {
+            throw new SecurityException("mismatched UIDs");
+        }
+    }
+
     /**
      * A builder class for a Wi-Fi Aware network specifier to set up an Aware connection with a
      * peer.
diff --git a/wifi/tests/src/android/net/wifi/WifiNetworkAgentSpecifierTest.java b/wifi/tests/src/android/net/wifi/WifiNetworkAgentSpecifierTest.java
index 61a7299..e6eece8 100644
--- a/wifi/tests/src/android/net/wifi/WifiNetworkAgentSpecifierTest.java
+++ b/wifi/tests/src/android/net/wifi/WifiNetworkAgentSpecifierTest.java
@@ -22,6 +22,7 @@
 
 import android.net.MacAddress;
 import android.net.MatchAllNetworkSpecifier;
+import android.net.NetworkRequest;
 import android.os.Parcel;
 import android.os.PatternMatcher;
 import android.util.Pair;
@@ -70,6 +71,16 @@
     }
 
     /**
+     * Validate that the NetworkAgentSpecifier cannot be used in a {@link NetworkRequest} by apps.
+     */
+    @Test(expected = IllegalStateException.class)
+    public void testWifiNetworkAgentSpecifierNotUsedInNetworkRequest() {
+        WifiNetworkAgentSpecifier specifier = createDefaultNetworkAgentSpecifier();
+
+        specifier.assertValidFromUid(TEST_UID);
+    }
+
+    /**
      * Validate NetworkAgentSpecifier equals with itself.
      * a) Create network agent specifier 1 for WPA_PSK network
      * b) Create network agent specifier 2 with the same params as specifier 1.
diff --git a/wifi/tests/src/android/net/wifi/aware/WifiAwareAgentNetworkSpecifierTest.java b/wifi/tests/src/android/net/wifi/aware/WifiAwareAgentNetworkSpecifierTest.java
index ef9c6a3..c3b6285 100644
--- a/wifi/tests/src/android/net/wifi/aware/WifiAwareAgentNetworkSpecifierTest.java
+++ b/wifi/tests/src/android/net/wifi/aware/WifiAwareAgentNetworkSpecifierTest.java
@@ -162,6 +162,17 @@
         collector.checkThat("Match unexpected", oldNs.satisfiedBy(newNs), equalTo(false));
     }
 
+    /**
+     * Validate that agent network specifier cannot be used as in network requests - i.e. that
+     * throws an exception when queried for UID validity.
+     */
+    @Test(expected = SecurityException.class)
+    public void testNoUsageInRequest() {
+        WifiAwareAgentNetworkSpecifier dut = new WifiAwareAgentNetworkSpecifier();
+
+        dut.assertValidFromUid(0);
+    }
+
     // utilities
 
     /**