google_apis: Move AuthOperation to auth_service.cc

chrome/browser/google_apis/auth_service.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_GOOGLE_APIS_AUTH_SERVICE_H_
 #define CHROME_BROWSER_GOOGLE_APIS_AUTH_SERVICE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/google_apis/base_operations.h"
 #include "chrome/browser/google_apis/gdata_errorcode.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Profile;
 
 namespace google_apis {
 
 class OperationRegistry;
 class AuthServiceObserver;
 
+// Callback type for authentication related DriveServiceInterface calls.
+typedef base::Callback<void(GDataErrorCode error,
+                            const std::string& token)> AuthStatusCallback;
+
 // This class provides authentication for Google services.
 // It integrates specific service integration with OAuth2 stack
 // (TokenService) and provides OAuth2 token refresh infrastructure.
 // All public functions must be called on UI thread.
 class AuthService : public content::NotificationObserver {
  public:
   explicit AuthService(const std::vector<std::string>& scopes);
   virtual ~AuthService();
 
   // Adds and removes the observer. AddObserver() should be called before
@@ skipping 60 matching lines @@
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<AuthService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AuthService);
 };
 
 }  // namespace google_apis
 
 #endif  // CHROME_BROWSER_GOOGLE_APIS_AUTH_SERVICE_H_