[MD Feedback] Add dialog title.

chrome/browser/ui/webui/md_feedback/md_feedback_dialog_controller.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_dialog_controller.h"
 
 #include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/common/url_constants.h"
+#include "chrome/grit/generated_resources.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/web_contents.h"
+#include "ui/base/l10n/l10n_util.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 #include "url/gurl.h"
 
 namespace {
 
 // The WebDialogDelegate that specifies what the MD Feedback dialog will look
 // like.
 class MdFeedbackDialogDelegate : public ui::WebDialogDelegate {
  public:
   MdFeedbackDialogDelegate() {}
   ~MdFeedbackDialogDelegate() override {}
 
   ui::ModalType GetDialogModalType() const override {
     return ui::MODAL_TYPE_SYSTEM;
   }
 
   base::string16 GetDialogTitle() const override {
-    return base::string16();
+    return l10n_util::GetStringUTF16(IDS_MD_FEEDBACK_DIALOG_TITLE);
   }
 
   GURL GetDialogContentURL() const override {
     return GURL(chrome::kChromeUIFeedbackURL);
   }
 
   void GetWebUIMessageHandlers(
       std::vector<content::WebUIMessageHandler*>* handlers) const override {}
 
   void GetDialogSize(gfx::Size* size) const override {
@@ skipping 34 matching lines @@
   // TODO(apacible): Platform dependent implementations.
 #if !defined(OS_MACOSX)
   // TODO(apacible): If a feedback dialog is already open, bring that dialog
   // to the front rather than creating a new dialog.
   chrome::ShowWebDialog(nullptr, browser_context,
       new MdFeedbackDialogDelegate());
 #endif  // !defined(OS_MACOSX)
 }
 
 MdFeedbackDialogController::MdFeedbackDialogController() {}