[MD settings] add getSiteDetails to site settings browser proxy

chrome/browser/ui/webui/site_settings_helper.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #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"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/usb/usb_chooser_context_factory.h"
 #include "chrome/common/pref_names.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/prefs/pref_service.h"
 
 namespace site_settings {
@@ skipping 80 matching lines @@
   exception->SetString(kSetting, setting_string);
   exception->SetString(kSource, provider_name);
   exception->SetBoolean(kIncognito, incognito);
   return base::WrapUnique(exception);
 }
 
 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);
   // Group settings by primary_pattern.
   AllPatternsSettings all_patterns_settings;
   for (ContentSettingsForOneType::iterator i = entries.begin();
        i != entries.end(); ++i) {
     // Don't add default settings.
     if (i->primary_pattern == ContentSettingsPattern::Wildcard() &&
         i->secondary_pattern == ContentSettingsPattern::Wildcard() &&
         i->source != kPreferencesSource) {
       continue;
     }
 
     // Off-the-record HostContentSettingsMap contains incognito content settings
     // as well as normal content settings. Here, we use the incongnito settings
     // only.
     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;
   }
 
   // Keep the exceptions sorted by provider so they will be displayed in
   // precedence order.
   std::vector<std::unique_ptr<base::DictionaryValue>>
       all_provider_exceptions[HostContentSettingsMap::NUM_PROVIDER_TYPES];
 
   // |all_patterns_settings| is sorted from the lowest precedence pattern to
@@ skipping 218 matching lines @@
     }
   }
 
   for (auto& one_provider_exceptions : all_provider_exceptions) {
     for (auto& exception : one_provider_exceptions)
       exceptions->Append(std::move(exception));
   }
 }
 
 }  // namespace site_settings