[MD settings] add getSiteDetails to site settings browser proxy

chrome/browser/ui/webui/settings/site_settings_handler.h

Index: chrome/browser/ui/webui/settings/site_settings_handler.h
diff --git a/chrome/browser/ui/webui/settings/site_settings_handler.h b/chrome/browser/ui/webui/settings/site_settings_handler.h
index 276057d75abcc07961494097ad3a70235182e51e..131548bf471f0a495d30721ab8c7717109d1d214 100644
--- a/chrome/browser/ui/webui/settings/site_settings_handler.h
+++ b/chrome/browser/ui/webui/settings/site_settings_handler.h
@@ -5,6 +5,8 @@
 #ifndef CHROME_BROWSER_UI_WEBUI_SETTINGS_SITE_SETTINGS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_SETTINGS_SITE_SETTINGS_HANDLER_H_
 
+#include <memory>
+#include <string>
 #include <vector>
 
 #include "base/scoped_observer.h"
@@ -87,6 +89,9 @@ class SiteSettingsHandler : public SettingsPageUIHandler,
   void HandleResetCategoryPermissionForOrigin(const base::ListValue* args);
   void HandleSetCategoryPermissionForOrigin(const base::ListValue* args);
 
+  // Return site exceptions for a single site.
+  void HandleGetSiteDetails(const base::ListValue* args);
+
   // Returns whether a given pattern is valid.
   void HandleIsPatternValid(const base::ListValue* args);