GCM: Add Android UMA, and UMA for deleted/collapsed messages

components/gcm_driver/gcm_stats_recorder_impl.cc

Index: components/gcm_driver/gcm_stats_recorder_impl.cc
diff --git a/components/gcm_driver/gcm_stats_recorder_impl.cc b/components/gcm_driver/gcm_stats_recorder_impl.cc
index faa0cc7e8caeb05f04b2eb2d37cb54791ff79653..721e85a39f3da41b6f0c7615d0b0de60bf8ad382 100644
--- a/components/gcm_driver/gcm_stats_recorder_impl.cc
+++ b/components/gcm_driver/gcm_stats_recorder_impl.cc
@@ -416,11 +416,6 @@ void GCMStatsRecorderImpl::RecordDataMessageReceived(
     int message_byte_size,
     bool to_registered_app,
     ReceivedMessageType message_type) {
-  UMA_HISTOGRAM_BOOLEAN("GCM.DataMessageReceivedHasRegisteredApp",
-                        to_registered_app);
-  if (to_registered_app)
-    UMA_HISTOGRAM_COUNTS("GCM.DataMessageReceived", 1);
-
   base::TimeTicks new_timestamp = base::TimeTicks::Now();
   if (last_received_data_message_burst_start_time_.is_null()) {
     last_received_data_message_burst_start_time_ = new_timestamp;