signin: pull basic SigninManager functionality into new SigninManagerBase class.

chrome/browser/sync/sync_global_error.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_SYNC_SYNC_GLOBAL_ERROR_H_
 #define CHROME_BROWSER_SYNC_SYNC_GLOBAL_ERROR_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/sync/profile_sync_service_observer.h"
 #include "chrome/browser/ui/global_error/global_error.h"
 
 class ProfileSyncService;
-class SigninManager;
+class SigninManagerBase;
 
 // Shows sync errors on the wrench menu using a bubble view and a
 // menu item.
 class SyncGlobalError : public GlobalError,
                         public ProfileSyncServiceObserver {
  public:
-  SyncGlobalError(ProfileSyncService* service, SigninManager* signin);
+  SyncGlobalError(ProfileSyncService* service, SigninManagerBase* signin);
   virtual ~SyncGlobalError();
 
   virtual bool HasMenuItem() OVERRIDE;
   virtual int MenuItemCommandID() OVERRIDE;
   virtual string16 MenuItemLabel() OVERRIDE;
   virtual void ExecuteMenuItem(Browser* browser) OVERRIDE;
 
   virtual bool HasBubbleView() OVERRIDE;
   virtual string16 GetBubbleViewTitle() OVERRIDE;
   virtual std::vector<string16> GetBubbleViewMessages() OVERRIDE;
   virtual string16 GetBubbleViewAcceptButtonLabel() OVERRIDE;
   virtual string16 GetBubbleViewCancelButtonLabel() OVERRIDE;
   virtual void OnBubbleViewDidClose(Browser* browser) OVERRIDE;
   virtual void BubbleViewAcceptButtonPressed(Browser* browser) OVERRIDE;
   virtual void BubbleViewCancelButtonPressed(Browser* browser) OVERRIDE;
 
   // ProfileSyncServiceObserver implementation.
   virtual void OnStateChanged() OVERRIDE;
 
  private:
   string16 bubble_accept_label_;
   string16 bubble_message_;
   string16 menu_label_;
   ProfileSyncService* service_;
-  SigninManager* signin_;
+  SigninManagerBase* signin_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncGlobalError);
 };
 
 #endif  // CHROME_BROWSER_SYNC_SYNC_GLOBAL_ERROR_H_