GTK: Another attempt at fixing gtk_floating_container_forall() crasher.

chrome/browser/gtk/tab_contents_container_gtk.h

 // Copyright (c) 2009 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_GTK_TAB_CONTENTS_CONTAINER_GTK_H_
 #define CHROME_BROWSER_GTK_TAB_CONTENTS_CONTAINER_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include "base/basictypes.h"
 #include "chrome/common/notification_registrar.h"
+#include "chrome/common/owned_widget_gtk.h"
 
 class RenderViewHost;
 class StatusBubbleGtk;
 class TabContents;
 
 typedef struct _GtkFloatingContainer GtkFloatingContainer;
 
 class TabContentsContainerGtk : public NotificationObserver {
  public:
   explicit TabContentsContainerGtk(StatusBubbleGtk* status_bubble);
@@ skipping 51 matching lines @@
   // The currently visible TabContents.
   TabContents* tab_contents_;
 
   // The status bubble manager.  Always non-NULL.
   StatusBubbleGtk* status_bubble_;
 
   // Top of the TabContentsContainerGtk widget hierarchy. A cross between a
   // GtkBin and a GtkFixed, |floating_| has |fixed_| as its one "real" child,
   // and the various things that hang off the bottom (status bubble, etc) have
   // their positions manually set in OnSetFloatingPosition.
-  GtkWidget* floating_;
+  OwnedWidgetGtk floating_;
 
   // We insert and remove TabContents GtkWidgets into this fixed_. This should
   // not be a GtkVBox since there were errors with timing where the vbox was
   // horizontally split with the top half displaying the current TabContents
   // and bottom half displaying the loading page.
   GtkWidget* fixed_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContentsContainerGtk);
 };
 
 #endif  // CHROME_BROWSER_GTK_TAB_CONTENTS_CONTAINER_GTK_H_