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

chrome/browser/chromeos/login/message_bubble.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/message_bubble.h"
 
 #include "base/logging.h"
 #include "chrome/browser/chromeos/login/helper.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
@@ skipping 97 matching lines @@
                                    const gfx::Rect& position_relative_to,
                                    BubbleBorder::ArrowLocation arrow_location,
                                    SkBitmap* image,
                                    const std::wstring& text,
                                    const std::wstring& help,
                                    MessageBubbleDelegate* delegate) {
   // The bubble will be destroyed when it is closed.
   MessageBubble* bubble = new MessageBubble(
       views::WidgetGtk::TYPE_WINDOW, parent, image, text, help, true, delegate);
   bubble->Init(parent, position_relative_to, arrow_location,
-               bubble->text_->GetParent(), delegate);
+               bubble->text_->parent(), delegate);
   return bubble;
 }
 
 // static
 MessageBubble* MessageBubble::ShowNoGrab(
     views::Widget* parent,
     const gfx::Rect& position_relative_to,
     BubbleBorder::ArrowLocation arrow_location,
     SkBitmap* image,
     const std::wstring& text,
     const std::wstring& help,
     MessageBubbleDelegate* delegate) {
   // The bubble will be destroyed when it is closed.
   MessageBubble* bubble = new MessageBubble(
       views::WidgetGtk::TYPE_CHILD, parent, image, text, help, false, delegate);
   bubble->Init(parent, position_relative_to, arrow_location,
-               bubble->text_->GetParent(), delegate);
+               bubble->text_->parent(), delegate);
   return bubble;
 }
 
 void MessageBubble::IsActiveChanged() {
   // Active parent instead.
   if (parent_ && IsActive()) {
     gtk_window_present_with_time(
         GTK_WINDOW(static_cast<WidgetGtk*>(parent_)->GetNativeView()),
                    gtk_get_current_event_time());
   }
 }
 
 void MessageBubble::DoGrab() {
   if (grab_enabled_)
     WidgetGtk::DoGrab();
 }
 
 void MessageBubble::Close() {
   parent_ = NULL;
   InfoBubble::Close();
 }
 
 }  // namespace chromeos