Flesh out the location-page class to make it more general.

chrome/browser/ui/webui/settings/md_settings_ui.cc

 // Copyright 2015 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/settings/md_settings_ui.h"
 
 #include <string>
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/settings/appearance_handler.h"
+#include "chrome/browser/ui/webui/settings/content_settings_handler.h"
 #include "chrome/browser/ui/webui/settings/downloads_handler.h"
 #include "chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.h"
 #include "chrome/browser/ui/webui/settings/settings_startup_pages_handler.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/browser/web_ui_data_source.h"
 #include "grit/settings_resources.h"
 #include "grit/settings_resources_map.h"
 
 namespace settings {
 
 SettingsPageUIHandler::SettingsPageUIHandler() {
 }
 
 SettingsPageUIHandler::~SettingsPageUIHandler() {
 }
 
 MdSettingsUI::MdSettingsUI(content::WebUI* web_ui)
     : content::WebUIController(web_ui) {
   AddSettingsPageUIHandler(new AppearanceHandler(web_ui));
   AddSettingsPageUIHandler(new DownloadsHandler());
   AddSettingsPageUIHandler(new StartupPagesHandler(web_ui));
+  AddSettingsPageUIHandler(new ContentSettingsHandler());

[Dan Beam, 2015/09/29 16:38:55]

nit: alpha

 
   content::WebUIDataSource* html_source =
       content::WebUIDataSource::Create(chrome::kChromeUIMdSettingsHost);
 
   // Add all settings resources.
   for (size_t i = 0; i < kSettingsResourcesSize; ++i) {
     html_source->AddResourcePath(kSettingsResources[i].name,
                                  kSettingsResources[i].value);
   }
 
   AddLocalizedStrings(html_source);
   html_source->SetDefaultResource(IDR_SETTINGS_SETTINGS_HTML);
 
   content::WebUIDataSource::Add(web_ui->GetWebContents()->GetBrowserContext(),
                                 html_source);
 }
 
 MdSettingsUI::~MdSettingsUI() {
 }
 
 void MdSettingsUI::AddSettingsPageUIHandler(
     settings::SettingsPageUIHandler* handler_raw) {
   scoped_ptr<settings::SettingsPageUIHandler> handler(handler_raw);
   DCHECK(handler.get());
 
   web_ui()->AddMessageHandler(handler.release());
 }
 
 }  // namespace settings