Replace network combobox with network dropdown button

chrome/browser/chromeos/login/network_selection_view.h

 // Copyright (c) 2010 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_NETWORK_SELECTION_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_NETWORK_SELECTION_VIEW_H_
 #pragma once
 
 #include "base/string16.h"
 #include "views/controls/button/menu_button.h"
 #include "views/view.h"
 #include "views/widget/widget_gtk.h"
 #include "views/window/window_delegate.h"
 
 namespace views {
 class Combobox;
 class Label;
 class NativeButton;
 class SmoothedThrobber;
 }  // namespace views
 
 namespace chromeos {
 
+class NetworkDropdownButton;
 class NetworkScreenDelegate;
 class ScreenObserver;
 
 // View for the network selection/initial welcome screen.
 class NetworkSelectionView : public views::View {
  public:
   explicit NetworkSelectionView(NetworkScreenDelegate* delegate);
   virtual ~NetworkSelectionView();
 
   // Initialize view layout.
   void Init();
 
   // Update strings from the resources. Executed on language change.
   void UpdateLocalizedStrings();
 
   // views::View: implementation:
   virtual gfx::Size GetPreferredSize();
   virtual void Layout();
 
-  // Gets/Sets the selected item in the network combobox.
-  int GetSelectedNetworkItem() const;
-  void SetSelectedNetworkItem(int index);
-
   gfx::NativeWindow GetNativeWindow();
 
-  // Inform the network combobox that its model changed.
-  void NetworkModelChanged();
-
   // Shows network connecting status or network selection otherwise.
   void ShowConnectingStatus(bool connecting, const string16& network_id);
 
   // Sets whether continue control is enabled.
   void EnableContinue(bool enabled);
 
  protected:
   // Overridden from views::View.
   virtual void ChildPreferredSizeChanged(View* child);
   virtual void OnLocaleChanged();
 
  private:
   // Delete and recreate native controls that
   // fail to update preferred size after string update.
   void RecreateNativeControls();
 
   // Updates text on label with currently connecting network.
   void UpdateConnectingNetworkLabel();
 
   // Dialog controls.
-  views::Combobox* network_combobox_;
   views::MenuButton* languages_menubutton_;
   views::Label* welcome_label_;
   views::Label* select_language_label_;
   views::Label* select_network_label_;
   views::Label* connecting_network_label_;
   views::NativeButton* continue_button_;
   views::SmoothedThrobber* throbber_;
 
   // Tab index of continue button.
   int continue_button_order_index_;
 
+  NetworkDropdownButton* network_dropdown_;
+
   // NetworkScreen delegate.
   NetworkScreenDelegate* delegate_;
 
   // Id of the network that is in process of connecting.
   string16 network_id_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkSelectionView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_NETWORK_SELECTION_VIEW_H_