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

chrome/browser/chromeos/options/network_config_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/options/network_config_view.h"
 
 #include <algorithm>
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 20 matching lines @@
 
 NetworkConfigView::NetworkConfigView()
     : browser_mode_(true),
       title_(UTF16ToWide(
           l10n_util::GetStringUTF16(IDS_OPTIONS_SETTINGS_OTHER_NETWORKS))),
       wificonfig_view_(new WifiConfigView(this)),
       delegate_(NULL) {
 }
 
 gfx::NativeWindow NetworkConfigView::GetNativeWindow() const {
-  return GTK_WINDOW(static_cast<WidgetGtk*>(GetWidget())->GetNativeView());
+  return
+      GTK_WINDOW(static_cast<const WidgetGtk*>(GetWidget())->GetNativeView());
 }
 
 std::wstring NetworkConfigView::GetDialogButtonLabel(
     MessageBoxFlags::DialogButton button) const {
   if (button == MessageBoxFlags::DIALOGBUTTON_OK)
     return UTF16ToWide(l10n_util::GetStringUTF16(IDS_OPTIONS_SETTINGS_CONNECT));
   return std::wstring();
 }
 
 bool NetworkConfigView::IsDialogButtonEnabled(
@@ skipping 37 matching lines @@
 
 void NetworkConfigView::ViewHierarchyChanged(
     bool is_add, views::View* parent, views::View* child) {
   // Can't init before we're inserted into a Container, because we require
   // a HWND to parent native child controls to.
   if (is_add && child == this)
     AddChildView(wificonfig_view_);
 }
 
 }  // namespace chromeos