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

chrome/browser/android/search_geolocation_disclosure_tab_helper.h

Index: chrome/browser/android/search_geolocation_disclosure_tab_helper.h
diff --git a/chrome/browser/android/search_geolocation_disclosure_tab_helper.h b/chrome/browser/android/search_geolocation_disclosure_tab_helper.h
index b121eddeba2ce87250117e70a00bc40375036910..00ed39c0722171896bb475164c4b3221098818d9 100644
--- a/chrome/browser/android/search_geolocation_disclosure_tab_helper.h
+++ b/chrome/browser/android/search_geolocation_disclosure_tab_helper.h
@@ -35,7 +35,12 @@ class SearchGeolocationDisclosureTabHelper
   friend class content::WebContentsUserData<
       SearchGeolocationDisclosureTabHelper>;
 
-  void MaybeShowDefaultSearchGeolocationDisclosure(GURL gurl);
+  void MaybeShowDefaultSearchGeolocationDisclosure(const GURL& gurl);
+
+  // Record metrics, once per client, of the permission state before and after
+  // the disclosure has been shown.
+  void RecordPreDisclosureMetrics(const GURL& gurl);
+  void RecordPostDisclosureMetrics(const GURL& gurl);
   Profile* GetProfile();
 
   bool consistent_geolocation_enabled_;