[Android WebView] Add an API to toggle the JS navigator.online property

android_webview/renderer/aw_render_process_observer.cc

 // Copyright (c) 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.
 
 #include "android_webview/renderer/aw_render_process_observer.h"
 
 #include "android_webview/common/render_view_messages.h"
 #include "ipc/ipc_message_macros.h"
 #include "third_party/WebKit/public/web/WebCache.h"
+#include "third_party/WebKit/public/web/WebNetworkStateNotifier.h"
 
 namespace android_webview {
 
 AwRenderProcessObserver::AwRenderProcessObserver()
   : webkit_initialized_(false) {
 }
 
 AwRenderProcessObserver::~AwRenderProcessObserver() {
 }
 
 bool AwRenderProcessObserver::OnControlMessageReceived(
     const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(AwRenderProcessObserver, message)
     IPC_MESSAGE_HANDLER(AwViewMsg_ClearCache, OnClearCache)
+    IPC_MESSAGE_HANDLER(AwViewMsg_SetJsOnlineProperty, OnSetJsOnlineProperty)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void AwRenderProcessObserver::WebKitInitialized() {
   webkit_initialized_ = true;
 }
 
 void AwRenderProcessObserver::OnClearCache() {
   if (webkit_initialized_)
     WebKit::WebCache::clear();
 }
 
+void AwRenderProcessObserver::OnSetJsOnlineProperty(bool network_up) {
+  if (webkit_initialized_)
+    WebKit::WebNetworkStateNotifier::setOnLine(network_up);
+}
+
 }  // nanemspace android_webview