ChromeOS: Show the new POD RE-AUTH ICON when users needs to re-auth

chrome/browser/chromeos/login/signin/token_handle_util.h

 // Copyright 2015 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_CHROMEOS_LOGIN_SIGNIN_TOKEN_HANDLE_UTIL_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SIGNIN_TOKEN_HANDLE_UTIL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 34 matching lines @@
 
   // Marks current handle as invalid, new one should be obtained at next sign
   // in.
   void MarkHandleInvalid(const user_manager::UserID& user_id);
 
   // Indicates if token handle for |user_id| is missing or marked as invalid.
   bool ShouldObtainHandle(const user_manager::UserID& user_id);
 
   // Performs token handle check for |user_id|. Will call |callback| with
   // corresponding result.
-  void CheckToken(const user_manager::UserID& user_id,
+  // Returns true if token check successfully started. Returns false if
+  // there is already token check request for this token, and another one is not
+  // possible now.
+  bool CheckToken(const user_manager::UserID& user_id,
                   const TokenValidationCallback& callback);
 
   // Given the token |handle| store it for |user_id|.
   void StoreTokenHandle(const user_manager::UserID& user_id,
                         const std::string& handle);
 
  private:
   // Associates GaiaOAuthClient::Delegate with User ID and Token.
   class TokenDelegate : public gaia::GaiaOAuthClient::Delegate {
    public:
@@ skipping 34 matching lines @@
 
   // Instance of GAIA Client.
   scoped_ptr<gaia::GaiaOAuthClient> gaia_client_;
 
   base::WeakPtrFactory<TokenHandleUtil> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TokenHandleUtil);
 };
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SIGNIN_TOKEN_HANDLE_UTIL_H_