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

components/gcm_driver/gcm_stats_recorder_android_unittest.cc

Index: components/gcm_driver/gcm_stats_recorder_android_unittest.cc
diff --git a/components/gcm_driver/gcm_stats_recorder_android_unittest.cc b/components/gcm_driver/gcm_stats_recorder_android_unittest.cc
index 0be010c92f404e3d8c712159f2146bba903eae4a..addca7437443807c36fc26da22d3969cf235bff5 100644
--- a/components/gcm_driver/gcm_stats_recorder_android_unittest.cc
+++ b/components/gcm_driver/gcm_stats_recorder_android_unittest.cc
@@ -6,6 +6,7 @@
 
 #include <stddef.h>
 
+#include "components/gcm_driver/crypto/gcm_encryption_provider.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace gcm {
@@ -55,16 +56,22 @@ TEST_F(GCMStatsRecorderAndroidTest, RecordsAndCallsDelegate) {
   recorder.RecordDataMessageReceived(kTestAppId, 42 /* message_byte_size */);
   EXPECT_EQ(5u, activity_recorded_calls());
 
+  recorder.RecordDecryptionFailure(
+      kTestAppId, GCMEncryptionProvider::DECRYPTION_FAILURE_INVALID_PAYLOAD);
+  EXPECT_EQ(6u, activity_recorded_calls());
+
   RecordedActivities activities;
   recorder.CollectActivities(&activities);
 
   EXPECT_EQ(4u, activities.registration_activities.size());
   EXPECT_EQ(1u, activities.receiving_activities.size());
+  EXPECT_EQ(1u, activities.decryption_failure_activities.size());
 
   recorder.CollectActivities(&activities);
 
   EXPECT_EQ(8u, activities.registration_activities.size());
   EXPECT_EQ(2u, activities.receiving_activities.size());
+  EXPECT_EQ(2u, activities.decryption_failure_activities.size());
 
   recorder.Clear();
 
@@ -73,6 +80,7 @@ TEST_F(GCMStatsRecorderAndroidTest, RecordsAndCallsDelegate) {
 
   EXPECT_EQ(0u, empty_activities.registration_activities.size());
   EXPECT_EQ(0u, empty_activities.receiving_activities.size());
+  EXPECT_EQ(0u, empty_activities.decryption_failure_activities.size());
 }
 
 TEST_F(GCMStatsRecorderAndroidTest, NullDelegate) {