Extract DependencyGraph from ProfileDependencyManager.

chrome/browser/profiles/profile_keyed_base_factory.h

 // Copyright (c) 2012 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_PROFILES_PROFILE_KEYED_BASE_FACTORY_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_KEYED_BASE_FACTORY_H_
 
 #include <set>
 
 #include "base/threading/non_thread_safe.h"
+#include "chrome/browser/profiles/dependency_node.h"
 
 class PrefRegistrySyncable;
 class PrefService;
 class Profile;
 class ProfileDependencyManager;
 
 // Base class for Factories that take a Profile object and return some service.
 //
 // Unless you're trying to make a new type of Factory, you probably don't want
 // this class, but its subclasses: ProfileKeyedServiceFactory and
 // RefcountedProfileKeyedServiceFactory. This object describes general
 // dependency management between Factories; subclasses react to lifecycle
 // events and implement memory management.
-class ProfileKeyedBaseFactory : public base::NonThreadSafe {
+class ProfileKeyedBaseFactory : public base::NonThreadSafe,
+                                public DependencyNode {
  public:
   // Registers preferences used in this service on the pref service of
   // |profile|. This is the public interface and is safe to be called multiple
   // times because testing code can have multiple services of the same type
   // attached to a single |profile|.
   void RegisterUserPrefsOnProfile(Profile* profile);
 
 #ifndef NDEBUG
   // Returns our name. We don't keep track of this in release mode.
   const char* name() const { return service_name_; }
@@ skipping 88 matching lines @@
 
 #if !defined(NDEBUG)
   // A static string passed in to our constructor. Should be unique across all
   // services. This is used only for debugging in debug mode. (We can print
   // pretty graphs with GraphViz with this information.)
   const char* service_name_;
 #endif
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_KEYED_BASE_FACTORY_H_