[MD Feedback] Add initial styling to feedback dialog.

chrome/browser/ui/webui/md_feedback/md_feedback_ui.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/md_feedback/md_feedback_ui.h"
 
 // #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/md_feedback/md_feedback_webui_message_handler.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/browser_resources.h"
@@ skipping 10 matching lines @@
   content::WebUIDataSource* html_source =
       content::WebUIDataSource::Create(chrome::kChromeUIFeedbackHost);
 
   // General strings.
   html_source->AddLocalizedString("headingText",
                                   IDS_MD_FEEDBACK_HEADING);
 #if defined(GOOGLE_CHROME_BUILD)
   html_source->AddLocalizedString("privacyNote",
                                   IDS_MD_FEEDBACK_PRIVACY_NOTE);
 #endif
-
+  html_source->AddLocalizedString("additionalInfoLabel",
+                                  IDS_MD_FEEDBACK_ADDITIONAL_INFO_LABEL);
   // Input labels.
   html_source->AddLocalizedString("emailLabel",
                                   IDS_MD_FEEDBACK_USER_EMAIL_LABEL);
   html_source->AddLocalizedString("openEndedLabel",
                                   IDS_MD_FEEDBACK_OPEN_ENDED_LABEL);
   html_source->AddLocalizedString("urlLabel",
                                   IDS_MD_FEEDBACK_URL_LABEL);
 
   // Buttons.
   html_source->AddLocalizedString("cancelButton",
@@ skipping 27 matching lines @@
     : content::WebUIController(web_ui), profile_(Profile::FromWebUI(web_ui)) {
   // Set up the chrome://feedback data html_source.
   content::WebUIDataSource* html_source =
       CreateMdFeedbackUIHTMLSource(profile_);
   content::WebUIDataSource::Add(profile_, html_source);
 
   web_ui->AddMessageHandler(new MdFeedbackWebUIMessageHandler(this));
 }
 
 MdFeedbackUI::~MdFeedbackUI() {}