Add log date to the metrics log

components/metrics/metrics_pref_names.cc

Index: components/metrics/metrics_pref_names.cc
diff --git a/components/metrics/metrics_pref_names.cc b/components/metrics/metrics_pref_names.cc
index fb32cd9ae713cb756f91656f7682373e8caca4fc..8035368c5493c9a1b391b784fc7bfe3d1abc0880 100644
--- a/components/metrics/metrics_pref_names.cc
+++ b/components/metrics/metrics_pref_names.cc
@@ -7,6 +7,19 @@
 namespace metrics {
 namespace prefs {
 
+// Array of strings that are each UMA logs that were supposed to be sent in the
+// first minute of a browser session. These logs include things like crash count
+// info, etc.
+const char kDeprecatedMetricsInitialLogs[] =
+    "user_experience_metrics.initial_logs_list";
+
+// Array of strings that are each UMA logs that were not sent because the
+// browser terminated before these accumulated metrics could be sent.  These
+// logs typically include histograms and memory reports, as well as ongoing
+// user activities.
+const char kDeprecatedMetricsOngoingLogs[] =
+    "user_experience_metrics.ongoing_logs_list";
+
 // Set once, to the current epoch time, on the first run of chrome on this
 // machine. Attached to metrics reports forever thereafter.
 const char kInstallDate[] = "uninstall_metrics.installation_date2";
@@ -27,7 +40,7 @@ const char kMetricsDefaultOptIn[] = "user_experience_metrics.default_opt_in";
 // first minute of a browser session. These logs include things like crash count
 // info, etc.

[Alexei Svitkine (slow), 2016/09/28 18:50:30]

Update comment here and below.

[gayane -on leave until 09-2017, 2016/09/28 20:50:49]

Done.

 const char kMetricsInitialLogs[] =
-    "user_experience_metrics.initial_logs_list";
+    "user_experience_metrics.initial_logs_dict_list";

[Alexei Svitkine (slow), 2016/09/28 18:50:30]

I would just name it "initial_logs2" and "ongoing_logs2". Keep it simple and
short, since the name is part of the file content and so don't need the extra
bloat.

[gayane -on leave until 09-2017, 2016/09/28 20:50:49]

Done.

 
 // The metrics entropy source.
 // Note: The name low_entropy_source2 is a result of creating
@@ -44,7 +57,7 @@ const char kMetricsMachineId[] = "user_experience_metrics.machine_id";
 // logs typically include histograms and memory reports, as well as ongoing
 // user activities.
 const char kMetricsOngoingLogs[] =
-    "user_experience_metrics.ongoing_logs_list";
+    "user_experience_metrics.ongoing_logs_dict_list";
 
 // Boolean that indicates a cloned install has been detected and the metrics
 // client id and low entropy source should be reset.