Revert of List message decryption failures on chrome://gcm-internals

components/gcm_driver/gcm_client_impl.h

 // Copyright 2014 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_GCM_DRIVER_GCM_CLIENT_IMPL_H_
 #define COMPONENTS_GCM_DRIVER_GCM_CLIENT_IMPL_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 101 matching lines @@
       scoped_ptr<Encryptor> encryptor,
       GCMClient::Delegate* delegate) override;
   void Start(StartMode start_mode) override;
   void Stop() override;
   void Register(const linked_ptr<RegistrationInfo>& registration_info) override;
   void Unregister(
       const linked_ptr<RegistrationInfo>& registration_info) override;
   void Send(const std::string& app_id,
             const std::string& receiver_id,
             const OutgoingMessage& message) override;
-  void RecordDecryptionFailure(const std::string& app_id,
-                               GCMEncryptionProvider::DecryptionFailure reason)
-      override;
   void SetRecording(bool recording) override;
   void ClearActivityLogs() override;
   GCMStatistics GetStatistics() const override;
   void SetAccountTokens(
       const std::vector<AccountTokenInfo>& account_tokens) override;
   void UpdateAccountMapping(const AccountMapping& account_mapping) override;
   void RemoveAccountMapping(const std::string& account_id) override;
   void SetLastTokenFetchTime(const base::Time& time) override;
   void UpdateHeartbeatTimer(scoped_ptr<base::Timer> timer) override;
   void AddInstanceIDData(const std::string& app_id,
@@ skipping 242 matching lines @@
 
   // Factory for creating references in callbacks.
   base::WeakPtrFactory<GCMClientImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMClientImpl);
 };
 
 }  // namespace gcm
 
 #endif  // COMPONENTS_GCM_DRIVER_GCM_CLIENT_IMPL_H_