[web-ui] Migrate RegisterMessageCallback usage to base::bind().

chrome/browser/ui/webui/chromeos/login/network_dropdown_handler.cc

 // Copyright (c) 2011 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 "chrome/browser/chromeos/login/webui_login_display.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_dropdown.h"
 #include "content/browser/webui/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 15 matching lines @@
     base::DictionaryValue* localized_strings) {
   localized_strings->SetString("selectNetwork",
       l10n_util::GetStringUTF16(IDS_NETWORK_SELECTION_SELECT));
 }
 
 void NetworkDropdownHandler::Initialize() {
 }
 
 void NetworkDropdownHandler::RegisterMessages() {
   web_ui_->RegisterMessageCallback(kJsApiNetworkItemChosen,
-      NewCallback(this, &NetworkDropdownHandler::HandleNetworkItemChosen));
+      base::Bind(&NetworkDropdownHandler::HandleNetworkItemChosen,
+                 base::Unretained(this)));
   web_ui_->RegisterMessageCallback(kJsApiNetworkDropdownShow,
-      NewCallback(this, &NetworkDropdownHandler::HandleNetworkDropdownShow));
+      base::Bind(&NetworkDropdownHandler::HandleNetworkDropdownShow,
+                 base::Unretained(this)));
   web_ui_->RegisterMessageCallback(kJsApiNetworkDropdownHide,
-      NewCallback(this, &NetworkDropdownHandler::HandleNetworkDropdownHide));
+      base::Bind(&NetworkDropdownHandler::HandleNetworkDropdownHide,
+                 base::Unretained(this)));
   web_ui_->RegisterMessageCallback(kJsApiNetworkDropdownRefresh,
-      NewCallback(this, &NetworkDropdownHandler::HandleNetworkDropdownRefresh));
+      base::Bind(&NetworkDropdownHandler::HandleNetworkDropdownRefresh,
+                 base::Unretained(this)));
 }
 
 void NetworkDropdownHandler::HandleNetworkItemChosen(
     const base::ListValue* args) {
   DCHECK(args->GetSize() == 1);
   double id;
   if (!args->GetDouble(0, &id))
     NOTREACHED();
   DCHECK(dropdown_.get());
   dropdown_->OnItemChosen(static_cast<int>(id));
@@ skipping 19 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