Add a unified observer to replace NetworkManagerObserver

chrome/browser/ui/webui/chromeos/login/network_dropdown_handler.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 "chrome/browser/ui/webui/chromeos/login/network_dropdown_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/values.h"
-#include "chrome/browser/chromeos/cros/network_library.h"
 #include "chrome/browser/chromeos/login/webui_login_display.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_dropdown.h"
 #include "content/public/browser/web_ui.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace {
 
 // JS API callbacks names.
 const char kJsApiNetworkItemChosen[] = "networkItemChosen";
@@ skipping 94 matching lines @@
 void NetworkDropdownHandler::HandleNetworkDropdownRefresh(
     const base::ListValue* args) {
   DCHECK(args->GetSize() == 0);
   // Since language change is async,
   // we may in theory be on another screen during this call.
   if (dropdown_.get())
     dropdown_->Refresh();
 }
 
 }  // namespace chromeos