[MD settings] add getSiteDetails to site settings browser proxy

chrome/browser/ui/webui/site_settings_helper.cc

Index: chrome/browser/ui/webui/site_settings_helper.cc
diff --git a/chrome/browser/ui/webui/site_settings_helper.cc b/chrome/browser/ui/webui/site_settings_helper.cc
index 716baad3d1087f89e753e99151021bb8b29a4ba4..3adec20b21e613d24ae78fd1caf672d2886b6f3e 100644
--- a/chrome/browser/ui/webui/site_settings_helper.cc
+++ b/chrome/browser/ui/webui/site_settings_helper.cc
@@ -4,6 +4,9 @@
 
 #include "chrome/browser/ui/webui/site_settings_helper.h"
 
+#include <functional>
+#include <string>
+
 #include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "chrome/browser/permissions/chooser_context_base.h"
@@ -104,6 +107,7 @@ void GetExceptionsFromHostContentSettingsMap(const HostContentSettingsMap* map,
                                              ContentSettingsType type,
                                              content::WebUI* web_ui,
                                              bool incognito,
+                                             const std::string* filter,
                                              base::ListValue* exceptions) {
   ContentSettingsForOneType entries;
   map->GetSettingsForOneType(type, std::string(), &entries);
@@ -124,6 +128,9 @@ void GetExceptionsFromHostContentSettingsMap(const HostContentSettingsMap* map,
     if (map->is_off_the_record() && !i->incognito)
       continue;
 
+    if (filter && i->primary_pattern.ToString() != *filter)
+      continue;
+
     all_patterns_settings[std::make_pair(i->primary_pattern, i->source)]
         [i->secondary_pattern] = i->setting;
   }