Add an Accounts in Token Service section to about:signin-internals.

components/signin/core/browser/about_signin_internals.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 COMPONENTS_SIGNIN_CORE_BROWSER_ABOUT_SIGNIN_INTERNALS_H_
 #define COMPONENTS_SIGNIN_CORE_BROWSER_ABOUT_SIGNIN_INTERNALS_H_
 
 #include <map>
 #include <string>
 
@@ skipping 133 matching lines @@
     //         "data": [List of {"service" : service name,
     //                           "scopes" : requested scoped,
     //                           "request_time" : request time,
     //                           "status" : request status} elems]
     //       }],
     //  }
     scoped_ptr<base::DictionaryValue> ToValue(
         AccountTrackerService* account_tracker,
         SigninManagerBase* signin_manager,
         SigninErrorController* signin_error_controller,
+        ProfileOAuth2TokenService* token_service,
         const std::string& product_version);
   };
 
   // SigninManager::SigninDiagnosticsObserver implementation.
   void NotifySigninValueChanged(
       const signin_internals_util::TimedSigninStatusField& field,
       const std::string& value) override;
 
   // OAuth2TokenService::DiagnosticsObserver implementations.
   void OnAccessTokenRequested(
@@ skipping 58 matching lines @@
 
   ObserverList<Observer> signin_observers_;
 
   scoped_ptr<SigninClient::CookieChangedSubscription>
       cookie_changed_subscription_;
 
   DISALLOW_COPY_AND_ASSIGN(AboutSigninInternals);
 };
 
 #endif  // COMPONENTS_SIGNIN_CORE_BROWSER_ABOUT_SIGNIN_INTERNALS_H_