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

components/gcm_driver/fake_gcm_client.h

Index: components/gcm_driver/fake_gcm_client.h
diff --git a/components/gcm_driver/fake_gcm_client.h b/components/gcm_driver/fake_gcm_client.h
index 1e28a26939579d7a03d109b30ce33c388ce41745..04cb351cd2ef143ce7d07f36d879da3ba7890214 100644
--- a/components/gcm_driver/fake_gcm_client.h
+++ b/components/gcm_driver/fake_gcm_client.h
@@ -11,7 +11,6 @@
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "components/gcm_driver/gcm_client.h"
-#include "components/gcm_driver/gcm_stats_recorder_impl.h"
 
 namespace base {
 class SequencedTaskRunner;
@@ -58,9 +57,6 @@
   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;
@@ -119,7 +115,6 @@
   scoped_refptr<base::SequencedTaskRunner> ui_thread_;
   scoped_refptr<base::SequencedTaskRunner> io_thread_;
   std::map<std::string, std::pair<std::string, std::string>> instance_id_data_;
-  GCMStatsRecorderImpl recorder_;
   base::WeakPtrFactory<FakeGCMClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeGCMClient);