Create a ProfileDependencyManager to order ProfileKeyedService destruction.

chrome/browser/themes/theme_service.h

Index: chrome/browser/themes/theme_service.h
diff --git a/chrome/browser/themes/theme_service.h b/chrome/browser/themes/theme_service.h
index bed5df08dfd2ea8145f4cf0fc9457eaa25ae1746..af9f58926a7607654c5bb4e71bf911be93fec169 100644
--- a/chrome/browser/themes/theme_service.h
+++ b/chrome/browser/themes/theme_service.h
@@ -12,6 +12,9 @@
 
 #include "base/memory/ref_counted.h"
 #include "base/threading/non_thread_safe.h"
+#include "chrome/browser/profiles/profile_keyed_service.h"
+#include "content/common/notification_observer.h"
+#include "content/common/notification_registrar.h"
 #include "ui/base/theme_provider.h"
 
 class BrowserThemePack;
@@ -37,6 +40,8 @@ extern "C" NSString* const kBrowserThemeDidChangeNotification;
 #endif  // __OBJC__
 
 class ThemeService : public base::NonThreadSafe,
+                     public NotificationObserver,
+                     public ProfileKeyedService,
                      public ui::ThemeProvider {
  public:
   // Public constants used in ThemeService and its subclasses:
@@ -241,6 +246,11 @@ class ThemeService : public base::NonThreadSafe,
 
   Profile* profile() { return profile_; }
 
+  // NotificationObserver:
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
  private:
   friend class ThemeServiceTest;
 
@@ -282,6 +292,8 @@ class ThemeService : public base::NonThreadSafe,
   // The number of infobars currently displayed.
   int number_of_infobars_;
 
+  NotificationRegistrar registrar_;
+
   DISALLOW_COPY_AND_ASSIGN(ThemeService);
 };