Log metrics for the new Default Search Engine geolocation setting.

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 286baa8419050d1975c30406e34505c8758eddc1..cdade4b53dcdf69bdcd4dea5cfccd4f209b0ba52 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -21459,6 +21459,16 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="GeolocationDisclosure.PostDisclosureDSESetting"
+    enum="BooleanAllowed">
+  <owner>benwells@chromium.org</owner>
+  <summary>
+    Records the geolocation default search engine setting after the search
+    geolocation disclosure has been shown and won't be shown again. This metric
+    is only recorded once per client.
+  </summary>
+</histogram>
+
 <histogram name="GeolocationDisclosure.PostDisclosurePermission"
     enum="PermissionStatus">
   <obsolete>
@@ -21482,6 +21492,16 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="GeolocationDisclosure.PreDisclosureDSESetting"
+    enum="BooleanAllowed">
+  <owner>benwells@chromium.org</owner>
+  <summary>
+    Records the geolocation default search engine setting immediately before the
+    search geolocation disclosure has been shown. This metric is only recorded
+    once per client.
+  </summary>
+</histogram>
+
 <histogram name="GeolocationDisclosure.PreDisclosurePermission"
     enum="PermissionStatus">
   <obsolete>
@@ -83840,6 +83860,11 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="1" label="Active"/>
 </enum>
 
+<enum name="BooleanAllowed" type="int">
+  <int value="0" label="Not Allowed"/>
+  <int value="1" label="Allowed"/>
+</enum>
+
 <enum name="BooleanAttempted" type="int">
   <int value="0" label="Not Attempted"/>
   <int value="1" label="Attempted"/>