Create a ProfileDependencyManager to order ProfileKeyedService destruction.

chrome/browser/ui/gtk/gtk_theme_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_GTK_GTK_THEME_SERVICE_H_
 #define CHROME_BROWSER_UI_GTK_GTK_THEME_SERVICE_H_
 #pragma once
 
 #include <map>
 #include <vector>
@@ skipping 15 matching lines @@
 }
 
 typedef struct _GdkDisplay GdkDisplay;
 typedef struct _GdkEventExpose GdkEventExpose;
 typedef struct _GdkPixbuf GdkPixbuf;
 typedef struct _GtkIconSet GtkIconSet;
 typedef struct _GtkStyle GtkStyle;
 typedef struct _GtkWidget GtkWidget;
 
 // Specialization of ThemeService which supplies system colors.
-class GtkThemeService : public ThemeService,
-                        public NotificationObserver {
+class GtkThemeService : public ThemeService {
  public:
   // Returns GtkThemeService, casted from our superclass.
   static GtkThemeService* GetFrom(Profile* profile);
 
   GtkThemeService();
   virtual ~GtkThemeService();
 
   // Calls |observer|.Observe() for the browser theme with this provider as the
   // source.
   void InitThemesFor(NotificationObserver* observer);
 
   // Overridden from ThemeService:
   //
   // Sets that we aren't using the system theme, then calls
   // ThemeService's implementation.
   virtual void Init(Profile* profile);
   virtual SkBitmap* GetBitmapNamed(int id) const;
   virtual SkColor GetColor(int id) const;
   virtual bool HasCustomImage(int id) const;
   virtual void SetTheme(const Extension* extension);
   virtual void UseDefaultTheme();
   virtual void SetNativeTheme();
   virtual bool UsingDefaultTheme();
 
-  // Overridden from NotificationObserver:
+  // Overridden from ThemeService, NotificationObserver:
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // Creates a GtkChromeButton instance, registered with this theme provider,
   // with a "destroy" signal to remove it from our internal list when it goes
   // away.
   GtkWidget* BuildChromeButton();
 
   // Creates a theme-aware vertical separator widget.
@@ skipping 231 matching lines @@
 
   // The default folder icon and default bookmark icon for the GTK theme.
   // These are static because the system can only have one theme at a time.
   // They are cached when they are requested the first time, and cleared when
   // the system theme changes.
   static GdkPixbuf* default_folder_icon_;
   static GdkPixbuf* default_bookmark_icon_;
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_GTK_THEME_SERVICE_H_