Revert of [Android WebView] Implement support for Network Information API and enable it.

android_webview/java/src/org/chromium/android_webview/AwContents.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.android_webview;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.ComponentCallbacks2;
 import android.content.Context;
@@ skipping 51 matching lines @@
 import org.chromium.content_public.browser.GestureStateListener;
 import org.chromium.content_public.browser.JavaScriptCallback;
 import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.content_public.browser.NavigationController;
 import org.chromium.content_public.browser.NavigationHistory;
 import org.chromium.content_public.browser.WebContents;
 import org.chromium.content_public.browser.navigation_controller.LoadURLType;
 import org.chromium.content_public.browser.navigation_controller.UserAgentOverrideOption;
 import org.chromium.content_public.common.Referrer;
 import org.chromium.net.NetError;
-import org.chromium.net.NetworkChangeNotifier;
 import org.chromium.ui.base.ActivityWindowAndroid;
 import org.chromium.ui.base.PageTransition;
 import org.chromium.ui.base.WindowAndroid;
 import org.chromium.ui.gfx.DeviceDisplayInfo;
 
 import java.io.File;
 import java.lang.annotation.Annotation;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.HashMap;
@@ skipping 2447 matching lines @@
      */
     public void hideAutofillPopup() {
         if (TRACE) Log.d(TAG, "hideAutofillPopup");
         if (mAwAutofillClient != null) {
             mAwAutofillClient.hideAutofillPopup();
         }
     }
 
     public void setNetworkAvailable(boolean networkUp) {
         if (TRACE) Log.d(TAG, "setNetworkAvailable=%s", networkUp);
-        if (!isDestroyed(WARN)) {
-            // For backward compatibility when an app uses this API disable the
-            // Network Information API to prevent inconsistencies,
-            // see crbug.com/520088.
-            NetworkChangeNotifier.setAutoDetectConnectivityState(false);
-            nativeSetJsOnlineProperty(mNativeAwContents, networkUp);
-        }
+        if (!isDestroyed(WARN)) nativeSetJsOnlineProperty(mNativeAwContents, networkUp);
     }
 
     /**
      * Inserts a {@link VisualStateCallback}.
      *
      * The {@link VisualStateCallback} will be inserted in Blink and will be invoked when the
      * contents of the DOM tree at the moment that the callback was inserted (or later) are drawn
      * into the screen. In other words, the following events need to happen before the callback is
      * invoked:
      * 1. The DOM tree is committed becoming the pending tree - see ThreadProxy::BeginMainFrame
@@ skipping 745 matching lines @@
             long resources);
 
     private native void nativePostMessageToFrame(long nativeAwContents, String frameId,
             String message, String targetOrigin, int[] msgPorts);
 
     private native void nativeCreateMessageChannel(long nativeAwContents, AwMessagePort[] ports);
 
     private native void nativeGrantFileSchemeAccesstoChildProcess(long nativeAwContents);
     private native void nativeResumeLoadingCreatedPopupWebContents(long nativeAwContents);
 }