Add various UMA histograms for measuring GCM crypto performance

components/gcm_driver/gcm_stats_recorder_impl_unittest.cc

 // 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.
 
 #include "components/gcm_driver/gcm_stats_recorder_impl.h"
 
 #include <stdint.h>
 
 #include <deque>
 #include <string>
@@ skipping 81 matching lines @@
 static const char kDataDeletedMessageDetails[] =
     "Message has been deleted on server";
 
 static const char kDataSentToWireEvent[] = "Data msg sent to wire";
 static const char kSentToWireDetails[] = "Msg queued for 5 seconds";
 static const char kNotifySendStatusEvent[] = "SEND status: QUEUED";
 static const char kNotifySendStatusDetails[] = "Msg size: 99 bytes, TTL: 7";
 static const char kIncomingSendErrorEvent[] = "Received 'send error' msg";
 static const char kIncomingSendErrorDetails[] = "";
 
-static const GCMEncryptionProvider::DecryptionFailure kDecryptionFailureReason =
-    GCMEncryptionProvider::DECRYPTION_FAILURE_INVALID_PAYLOAD;
+static const GCMEncryptionProvider::DecryptionResult kDecryptionResultFailure =
+    GCMEncryptionProvider::DECRYPTION_RESULT_INVALID_PAYLOAD;
 
 }  // namespace
 
 class GCMStatsRecorderImplTest : public testing::Test {
  public:
   GCMStatsRecorderImplTest();
   ~GCMStatsRecorderImplTest() override;
   void SetUp() override;
 
   void VerifyRecordedCheckinCount(int expected_count) {
@@ skipping 181 matching lines @@
                       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),
+        GCMEncryptionProvider::ToDecryptionResultDetailsString(
+            kDecryptionResultFailure),
         queue.front().details) << remark;
   }
 
  protected:
   void VerifyCheckin(
       const std::deque<CheckinActivity>& queue,
       const std::string& event,
       const std::string& details,
       const std::string& remark) {
     EXPECT_EQ(event, queue.front().event) << remark;
@@ skipping 223 matching lines @@
   recorder_.RecordIncomingSendError(kAppId, kReceiverId, kMessageId);
   VerifyRecordedSendingCount(3);
   VerifyIncomingSendError("3rd call");
 
   recorder_.RecordDataSentToWire(kAppId, kReceiverId, kMessageId, kQueuedSec);
   VerifyRecordedSendingCount(4);
   VerifyDataSentToWire("4th call");
 }
 
 TEST_F(GCMStatsRecorderImplTest, RecordDecryptionFailureTest) {
-  recorder_.RecordDecryptionFailure(kAppId, kDecryptionFailureReason);
+  recorder_.RecordDecryptionFailure(kAppId, kDecryptionResultFailure);
   VerifyRecordedDecryptionFailureCount(1);
 
   VerifyRecordedDecryptionFailure("1st call");
 }
 
 }  // namespace gcm