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 30a95dae089b5943b3cdaf6a7884cd00f4de7762..5c6fe253fc3942f32d6ff1af06fc0af5318b93c2 100644
--- a/components/gcm_driver/gcm_stats_recorder_impl_unittest.cc
+++ b/components/gcm_driver/gcm_stats_recorder_impl_unittest.cc
@@ -10,6 +10,7 @@
 #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"
 
@@ -98,6 +99,9 @@ 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;
+
 }  // namespace
 
 class GCMStatsRecorderImplTest : public testing::Test {
@@ -126,12 +130,18 @@ class GCMStatsRecorderImplTest : public testing::Test {
     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;
     EXPECT_TRUE(recorder_.connection_activities().empty()) << remark;
     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) {
@@ -287,6 +297,16 @@ class GCMStatsRecorderImplTest : public testing::Test {
                       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:
   void VerifyCheckin(
       const std::deque<CheckinActivity>& queue,
@@ -526,4 +546,11 @@ TEST_F(GCMStatsRecorderImplTest, RecordSendingTest) {
   VerifyDataSentToWire("4th call");
 }
 
+TEST_F(GCMStatsRecorderImplTest, RecordDecryptionFailureTest) {
+  recorder_.RecordDecryptionFailure(kAppId, kDecryptionFailureReason);
+  VerifyRecordedDecryptionFailureCount(1);
+
+  VerifyRecordedDecryptionFailure("1st call");
+}
+
 }  // namespace gcm