Record metric of geo permission before and after showing the disclosure.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 37ec58cb3ff9fa74bc237774a678085ff6f179c3..4f8fa0e06292a653d7ad23df4fe0a7ac1c3a5946 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2314,6 +2314,16 @@ const char kSearchGeolocationDisclosureShownCount[] =
 // When the disclosure was shown last.
 const char kSearchGeolocationDisclosureLastShowDate[] =
     "search_geolocation_disclosure.last_show_date";
+
+// Whether the metrics for the state of geolocation pre-disclosure being shown
+// have been recorded.
+const char kSearchGeolocationPreDisclosureMetricsRecorded[] =
+    "search_geolocation_pre_disclosure_metrics_recorded";
+
+// Whether the metrics for the state of geolocation post-disclosure being shown
+// have been recorded.
+const char kSearchGeolocationPostDisclosureMetricsRecorded[] =
+    "search_geolocation_post_disclosure_metrics_recorded";
 #endif
 
 }  // namespace prefs