Audit the last usage of Geolocation and Notification permissions.

content/public/browser/content_browser_client.h

Index: content/public/browser/content_browser_client.h
diff --git a/content/public/browser/content_browser_client.h b/content/public/browser/content_browser_client.h
index 739f4c0ff75af62c174a2946713df93deca519bb..fb735fbf220156424769111893960e55430600d5 100644
--- a/content/public/browser/content_browser_client.h
+++ b/content/public/browser/content_browser_client.h
@@ -473,6 +473,12 @@ class CONTENT_EXPORT ContentBrowserClient {
       base::Callback<void(bool)> result_callback,
       base::Closure* cancel_callback);
 
+  // Informs the content settings host map that a permission has been used.
+  virtual void UseContentSettingPermission(WebContents* web_contents,
+                                           const GURL& primary_url,
+                                           const GURL& secondary_url,
+                                           const std::string& setting_type);
+
   // Returns true if the given page is allowed to open a window of the given
   // type. If true is returned, |no_javascript_access| will indicate whether
   // the window that is created should be scriptable/in the same process.