Move implementation of BrowserList onto an inner, instantiatable class, BrowserListImpl.

chrome/browser/managed_mode.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_MANAGED_MODE_H_
 #define CHROME_BROWSER_MANAGED_MODE_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/singleton.h"
 #include "chrome/browser/extensions/management_policy.h"
-#include "chrome/browser/ui/browser_list.h"
+#include "chrome/browser/ui/browser_list_observer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Browser;
 template<typename T>
 struct DefaultSingletonTraits;
 class PrefService;
 class Profile;
 
 // Managed mode allows one person to manage the Chrome experience for another
 // person by pre-configuring and then locking a managed User profile.
 // The ManagedMode class provides methods to check whether the browser is in
 // managed mode, and to attempt to enter or leave managed mode.
-class ManagedMode : public BrowserList::Observer,
+class ManagedMode : public chrome::BrowserListObserver,
                     public extensions::ManagementPolicy::Provider,
                     public content::NotificationObserver {
  public:
   typedef base::Callback<void(bool)> EnterCallback;
 
   static void RegisterPrefs(PrefService* prefs);
 
   // Initializes the singleton, setting the managed_profile_. Must be called
   // after g_browser_process and the LocalState have been created.
   static void Init(Profile* profile);
   static bool IsInManagedMode();
 
   // Calls |callback| with the argument true iff managed mode was entered
   // sucessfully.
   static void EnterManagedMode(Profile* profile, const EnterCallback& callback);
   static void LeaveManagedMode();
 
   // ExtensionManagementPolicy::Provider implementation:
   virtual std::string GetDebugPolicyProviderName() const OVERRIDE;
   virtual bool UserMayLoad(const extensions::Extension* extension,
                            string16* error) const OVERRIDE;
   virtual bool UserMayModifySettings(const extensions::Extension* extension,
                                      string16* error) const OVERRIDE;
 
-  // BrowserList::Observer implementation:
+  // chrome::BrowserListObserver implementation:
   virtual void OnBrowserAdded(Browser* browser) OVERRIDE;
   virtual void OnBrowserRemoved(Browser* browser) OVERRIDE;
 
   // content::NotificationObserver implementation:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
  protected:
   ManagedMode();
@@ skipping 39 matching lines @@
 
   content::NotificationRegistrar registrar_;
 
   std::set<Browser*> browsers_to_close_;
   std::vector<EnterCallback> callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(ManagedMode);
 };
 
 #endif  // CHROME_BROWSER_MANAGED_MODE_H_