Don't bother validating networks that don't satisfy the default request.

The only immediate change in behavior is not validating untrusted networks.

bug:18299572
bug:18394654

Change-Id: I8d626baf37db0bd0f55ddf3af8a0abf094a12369
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 17889ea..6d161a2 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -3615,6 +3615,7 @@
     private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos =
             new HashMap<Messenger, NetworkAgentInfo>();
 
+    // Note: if mDefaultRequest is changed, NetworkMonitor needs to be updated.
     private final NetworkRequest mDefaultRequest;
 
     private boolean isDefaultNetwork(NetworkAgentInfo nai) {
@@ -3626,10 +3627,12 @@
             int currentScore, NetworkMisc networkMisc) {
         enforceConnectivityInternalPermission();
 
+        // TODO: Instead of passing mDefaultRequest, provide an API to determine whether a Network
+        // satisfies mDefaultRequest.
         NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(),
             new NetworkInfo(networkInfo), new LinkProperties(linkProperties),
             new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler,
-            new NetworkMisc(networkMisc));
+            new NetworkMisc(networkMisc), mDefaultRequest);
         synchronized (this) {
             nai.networkMonitor.systemReady = mSystemReady;
         }
diff --git a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
index 4cf2a4a..12da5c3 100644
--- a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
+++ b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
@@ -68,7 +68,7 @@
 
     public NetworkAgentInfo(Messenger messenger, AsyncChannel ac, NetworkInfo info,
             LinkProperties lp, NetworkCapabilities nc, int score, Context context, Handler handler,
-            NetworkMisc misc) {
+            NetworkMisc misc, NetworkRequest defaultRequest) {
         this.messenger = messenger;
         asyncChannel = ac;
         network = null;
@@ -76,7 +76,7 @@
         linkProperties = lp;
         networkCapabilities = nc;
         currentScore = score;
-        networkMonitor = new NetworkMonitor(context, handler, this);
+        networkMonitor = new NetworkMonitor(context, handler, this, defaultRequest);
         networkMisc = misc;
         created = false;
         validated = false;