[Cronet] Move initialization to a new thread rather than the UI thread.

net/android/javatests/src/org/chromium/net/NetworkChangeNotifierTest.java

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.net;
 
 import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
 import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
 import static android.net.NetworkCapabilities.TRANSPORT_VPN;
 import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
@@ skipping 574 matching lines @@
 
     /**
      * Tests that when Chrome gets an intent indicating a change in network connectivity, it sends a
      * notification to Java observers.
      */
     @Test
     @UiThreadTest
     @MediumTest
     @Feature({"Android-AppBase"})
     public void testNetworkChangeNotifierJavaObservers() {
+        mReceiver.register();
         // Initialize the NetworkChangeNotifier with a connection.
         Intent connectivityIntent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
         mReceiver.onReceive(InstrumentationRegistry.getInstrumentation().getTargetContext(),
                 connectivityIntent);
 
         // We shouldn't be re-notified if the connection hasn't actually changed.
         NetworkChangeNotifierTestObserver observer = new NetworkChangeNotifierTestObserver();
         NetworkChangeNotifier.addConnectionTypeObserver(observer);
         mReceiver.onReceive(InstrumentationRegistry.getInstrumentation().getTargetContext(),
                 connectivityIntent);
@@ skipping 45 matching lines @@
 
     /**
      * Tests that when Chrome gets an intent indicating a change in max bandwidth, it sends a
      * notification to Java observers.
      */
     @Test
     @UiThreadTest
     @MediumTest
     @Feature({"Android-AppBase"})
     public void testNetworkChangeNotifierMaxBandwidthNotifications() {
+        mReceiver.register();
         // Initialize the NetworkChangeNotifier with a connection.
         mConnectivityDelegate.setActiveNetworkExists(true);
         mConnectivityDelegate.setNetworkType(ConnectivityManager.TYPE_WIFI);
         Intent connectivityIntent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
         mReceiver.onReceive(InstrumentationRegistry.getInstrumentation().getTargetContext(),
                 connectivityIntent);
         Assert.assertTrue(mNotifier.hasReceivedMaxBandwidthNotification());
         mNotifier.resetHasReceivedMaxBandwidthNotification();
 
         // We shouldn't be re-notified if the connection hasn't actually changed.
@@ skipping 276 matching lines @@
     }
 
     /**
      * Tests that isOnline() returns the correct result.
      */
     @Test
     @UiThreadTest
     @MediumTest
     @Feature({"Android-AppBase"})
     public void testNetworkChangeNotifierIsOnline() {
+        mReceiver.register();
         Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
         // For any connection type it should return true.
         for (int i = ConnectivityManager.TYPE_MOBILE; i < ConnectivityManager.TYPE_VPN; i++) {
             mConnectivityDelegate.setActiveNetworkExists(true);
             mConnectivityDelegate.setNetworkType(i);
             mReceiver.onReceive(
                     InstrumentationRegistry.getInstrumentation().getTargetContext(), intent);
             Assert.assertTrue(NetworkChangeNotifier.isOnline());
         }
         mConnectivityDelegate.setActiveNetworkExists(false);
         mReceiver.onReceive(
                 InstrumentationRegistry.getInstrumentation().getTargetContext(), intent);
         Assert.assertFalse(NetworkChangeNotifier.isOnline());
     }
 }