[Cronet] Move NetworkChangeNotifier initialization off UI thread

components/cronet/android/java/src/org/chromium/net/impl/CronetLibraryLoader.java

 // Copyright 2015 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.impl;
 
 import android.content.Context;
 import android.os.Handler;
 import android.os.Looper;
 
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.JNINamespace;
-import org.chromium.net.NetworkChangeNotifier;
 
 /**
  * CronetLibraryLoader loads and initializes native library on main thread.
  */
 @JNINamespace("cronet")
 @VisibleForTesting
 public class CronetLibraryLoader {
     // Synchronize initialization.
     private static final Object sLoadLock = new Object();
     private static final String LIBRARY_NAME = "cronet." + ImplVersion.getCronetVersion();
@@ skipping 53 matching lines @@
      * Ensure that the main thread initialization has completed. Can only be called from
      * the main thread. Ensures that the NetworkChangeNotifier is initialzied and the
      * main thread native MessageLoop is initialized.
      */
     static void ensureInitializedOnMainThread(Context context) {
         assert sLibraryLoaded;
         assert Looper.getMainLooper() == Looper.myLooper();
         if (sMainThreadInitDone) {
             return;
         }
-        NetworkChangeNotifier.init(context);
-        // Registers to always receive network notifications. Note
-        // that this call is fine for Cronet because Cronet
-        // embedders do not have API access to create network change
-        // observers. Existing observers in the net stack do not
-        // perform expensive work.
-        NetworkChangeNotifier.registerToReceiveNotificationsAlways();
-        // registerToReceiveNotificationsAlways() is called before the native
-        // NetworkChangeNotifierAndroid is created, so as to avoid receiving
-        // the undesired initial network change observer notification, which
-        // will cause active requests to fail with ERR_NETWORK_CHANGED.
         nativeCronetInitOnMainThread();
         sMainThreadInitDone = true;
     }
 
     // Native methods are implemented in cronet_library_loader.cc.
     private static native void nativeCronetInitOnMainThread();
     private static native String nativeGetCronetVersion();
 }