Limit access to suspected false positives.

Members modified herein are suspected to be false positives: i.e. things
that were added to the greylist in P, but subsequent data analysis
suggests that they are not, in fact, used after all.

Add a maxTargetSdk=P to these APIs. This is lower-risk that simply
removing these things from the greylist, as none of out data sources are
perfect nor complete.

For APIs that are not supported yet by annotations, move them to
hiddenapi-greylist-max-p.txt instead which has the same effect.

Exempted-From-Owner-Approval: Automatic changes to the codebase
affecting only @UnsupportedAppUsage annotations, themselves added
without requiring owners approval earlier.

Bug: 115609023
Test: m
Change-Id: Ia937d8c41512e7f1b6e7f67b9104c1878b5cc3a0
Merged-In: I020a9c09672ebcae64c5357abc4993e07e744687
diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index 49c3dc6..61d5a91 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -27,6 +27,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.os.Binder;
+import android.os.Build;
 import android.os.Build.VERSION_CODES;
 import android.os.Bundle;
 import android.os.Handler;
@@ -2768,7 +2769,7 @@
     }
 
     /** {@hide} */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     public void unregisterNetworkFactory(Messenger messenger) {
         try {
             mService.unregisterNetworkFactory(messenger);
diff --git a/core/java/android/net/LinkAddress.java b/core/java/android/net/LinkAddress.java
index 77562db..b40f15a 100644
--- a/core/java/android/net/LinkAddress.java
+++ b/core/java/android/net/LinkAddress.java
@@ -27,6 +27,7 @@
 
 import android.annotation.SystemApi;
 import android.annotation.UnsupportedAppUsage;
+import android.os.Build;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Pair;
@@ -56,13 +57,13 @@
     /**
      * IPv4 or IPv6 address.
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     private InetAddress address;
 
     /**
      * Prefix length.
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     private int prefixLength;
 
     /**
diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index 80517ce..3a79206 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -20,6 +20,7 @@
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.UnsupportedAppUsage;
+import android.os.Build;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.text.TextUtils;
@@ -50,7 +51,7 @@
  */
 public final class LinkProperties implements Parcelable {
     // The interface described by the network link.
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     private String mIfaceName;
     private ArrayList<LinkAddress> mLinkAddresses = new ArrayList<>();
     private ArrayList<InetAddress> mDnses = new ArrayList<>();
@@ -1136,7 +1137,7 @@
      * @return {@code true} if both are identical, {@code false} otherwise.
      * @hide
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     public boolean isIdenticalHttpProxy(LinkProperties target) {
         return getHttpProxy() == null ? target.getHttpProxy() == null :
                 getHttpProxy().equals(target.getHttpProxy());
diff --git a/core/java/android/net/NetworkAgent.java b/core/java/android/net/NetworkAgent.java
index 114b423..99bfc14 100644
--- a/core/java/android/net/NetworkAgent.java
+++ b/core/java/android/net/NetworkAgent.java
@@ -19,6 +19,7 @@
 import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.net.ConnectivityManager.PacketKeepalive;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
@@ -352,7 +353,7 @@
     /**
      * Called by the bearer code when it has new NetworkInfo data.
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     public void sendNetworkInfo(NetworkInfo networkInfo) {
         queueOrSendMessage(EVENT_NETWORK_INFO_CHANGED, new NetworkInfo(networkInfo));
     }
diff --git a/core/java/android/net/NetworkRequest.java b/core/java/android/net/NetworkRequest.java
index 3b01b03..9508217 100644
--- a/core/java/android/net/NetworkRequest.java
+++ b/core/java/android/net/NetworkRequest.java
@@ -21,6 +21,7 @@
 import android.annotation.UnsupportedAppUsage;
 import android.net.NetworkCapabilities.NetCapability;
 import android.net.NetworkCapabilities.Transport;
+import android.os.Build;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.Process;
@@ -57,7 +58,7 @@
      * Causes CONNECTIVITY_ACTION broadcasts to be sent.
      * @hide
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     public final int legacyType;
 
     /**
diff --git a/core/java/android/net/RouteInfo.java b/core/java/android/net/RouteInfo.java
index 3e73d3d..37ab9ff 100644
--- a/core/java/android/net/RouteInfo.java
+++ b/core/java/android/net/RouteInfo.java
@@ -17,6 +17,7 @@
 package android.net;
 
 import android.annotation.UnsupportedAppUsage;
+import android.os.Build;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -81,7 +82,7 @@
 
     // Derived data members.
     // TODO: remove these.
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     private final boolean mIsHost;
     private final boolean mHasGateway;
 
@@ -265,7 +266,7 @@
         }
     }
 
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     private boolean isHost() {
         return (mDestination.getAddress() instanceof Inet4Address &&
                 mDestination.getPrefixLength() == 32) ||