Rework tree APIs to reflect Google style and more const-correctness....

chrome/browser/chromeos/login/network_selection_view.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/chromeos/login/network_selection_view.h"
 
 #include <signal.h>
 #include <sys/types.h>
 #include <string>
 
@@ skipping 360 matching lines @@
   proxy_settings_dialog_.reset(NULL);
 
   Layout();
   SchedulePaint();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NetworkSelectionView, public:
 
 gfx::NativeWindow NetworkSelectionView::GetNativeWindow() const {
-  return GTK_WINDOW(static_cast<WidgetGtk*>(GetWidget())->GetNativeView());
+  return
+      GTK_WINDOW(static_cast<const WidgetGtk*>(GetWidget())->GetNativeView());
 }
 
 views::View* NetworkSelectionView::GetNetworkControlView() const {
   return network_dropdown_;
 }
 
 void NetworkSelectionView::ShowConnectingStatus(bool connecting,
                                                 const string16& network_id) {
   network_id_ = network_id;
   UpdateConnectingNetworkLabel();
@@ skipping 57 matching lines @@
           l10n_util::GetStringUTF16(IDS_NETWORK_SELECTION_CONTINUE_BUTTON)));
   continue_button_->SetEnabled(is_continue_enabled);
 }
 
 void NetworkSelectionView::UpdateConnectingNetworkLabel() {
   connecting_network_label_->SetText(UTF16ToWide(l10n_util::GetStringFUTF16(
       IDS_NETWORK_SELECTION_CONNECTING, network_id_)));
 }
 
 }  // namespace chromeos