Install the Network Security Config Provider

The provider is installed early in ActivityThread to ensure that no
TLS objects are created in the application before the provider is
installed.

Change-Id: I5f77addfa75a4ee19301de54e01507d8dca33657

core/java/android/app/ActivityThread.java

@@ -78,6 +78,7 @@ import android.os.Trace;
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.security.NetworkSecurityPolicy;
+import android.security.net.config.NetworkSecurityConfigProvider;
 import android.util.AndroidRuntimeException;
 import android.util.ArrayMap;
 import android.util.DisplayMetrics;
@@ -4831,6 +4832,11 @@ public final class ActivityThread {
             }
         }
 
+        // Install the Network Security Config Provider. This must happen before the application
+        // code is loaded to prevent issues with instances of TLS objects being created before
+        // the provider is installed.
+        NetworkSecurityConfigProvider.install(appContext);
+
         // Continue loading instrumentation.
         if (ii != null) {
             final ApplicationInfo instrApp = new ApplicationInfo();