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

components/gcm_driver/gcm_stats_recorder_impl_unittest.cc

Index: components/gcm_driver/gcm_stats_recorder_impl_unittest.cc
diff --git a/components/gcm_driver/gcm_stats_recorder_impl_unittest.cc b/components/gcm_driver/gcm_stats_recorder_impl_unittest.cc
index 5c6fe253fc3942f32d6ff1af06fc0af5318b93c2..30a95dae089b5943b3cdaf6a7884cd00f4de7762 100644
--- a/components/gcm_driver/gcm_stats_recorder_impl_unittest.cc
+++ b/components/gcm_driver/gcm_stats_recorder_impl_unittest.cc
@@ -10,7 +10,6 @@
 #include <string>
 #include <vector>
 
-#include "components/gcm_driver/crypto/gcm_encryption_provider.h"
 #include "google_apis/gcm/engine/mcs_client.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -99,9 +98,6 @@
 static const char kIncomingSendErrorEvent[] = "Received 'send error' msg";
 static const char kIncomingSendErrorDetails[] = "";
 
-static const GCMEncryptionProvider::DecryptionFailure kDecryptionFailureReason =
-    GCMEncryptionProvider::DECRYPTION_FAILURE_INVALID_PAYLOAD;
-
 }  // namespace
 
 class GCMStatsRecorderImplTest : public testing::Test {
@@ -129,11 +125,6 @@
   void VerifyRecordedSendingCount(int expected_count) {
     EXPECT_EQ(expected_count,
               static_cast<int>(recorder_.sending_activities().size()));
-  }
-  void VerifyRecordedDecryptionFailureCount(int expected_count) {
-    EXPECT_EQ(
-        expected_count,
-        static_cast<int>(recorder_.decryption_failure_activities().size()));
   }
   void VerifyAllActivityQueueEmpty(const std::string& remark) {
     EXPECT_TRUE(recorder_.checkin_activities().empty()) << remark;
@@ -141,7 +132,6 @@
     EXPECT_TRUE(recorder_.registration_activities().empty()) << remark;
     EXPECT_TRUE(recorder_.receiving_activities().empty()) << remark;
     EXPECT_TRUE(recorder_.sending_activities().empty()) << remark;
-    EXPECT_TRUE(recorder_.decryption_failure_activities().empty()) << remark;
   }
 
   void VerifyCheckinInitiated(const std::string& remark) {
@@ -295,16 +285,6 @@
                       kIncomingSendErrorEvent,
                       kIncomingSendErrorDetails,
                       remark);
-  }
-
-  void VerifyRecordedDecryptionFailure(const std::string& remark) {
-    const auto& queue = recorder_.decryption_failure_activities();
-
-    EXPECT_EQ(kAppId, queue.front().app_id) << remark;
-    EXPECT_EQ(
-        GCMEncryptionProvider::ToDecryptionFailureDetailsString(
-            kDecryptionFailureReason),
-        queue.front().details) << remark;
   }
 
  protected:
@@ -546,11 +526,4 @@
   VerifyDataSentToWire("4th call");
 }
 
-TEST_F(GCMStatsRecorderImplTest, RecordDecryptionFailureTest) {
-  recorder_.RecordDecryptionFailure(kAppId, kDecryptionFailureReason);
-  VerifyRecordedDecryptionFailureCount(1);
-
-  VerifyRecordedDecryptionFailure("1st call");
-}
-
 }  // namespace gcm