[MD Feedback] Add initial styling to feedback dialog.

chrome/browser/ui/webui/md_feedback/md_feedback_ui.cc

Index: chrome/browser/ui/webui/md_feedback/md_feedback_ui.cc
diff --git a/chrome/browser/ui/webui/md_feedback/md_feedback_ui.cc b/chrome/browser/ui/webui/md_feedback/md_feedback_ui.cc
index 8e6724ffa823b2f347d0e219df3d0bf3f8a9eea9..9a98ec82f7b14b0e2dd15e99cda5bac88ce23c3f 100644
--- a/chrome/browser/ui/webui/md_feedback/md_feedback_ui.cc
+++ b/chrome/browser/ui/webui/md_feedback/md_feedback_ui.cc
@@ -28,7 +28,8 @@ content::WebUIDataSource* CreateMdFeedbackUIHTMLSource(Profile* profile) {
   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);