Enhance chrome.app.window API with title property

chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.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/ash/launcher/chrome_launcher_controller_mus.h"
 
 #include "base/strings/string_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/ash/chrome_launcher_prefs.h"
@@ skipping 257 matching lines @@
   NOTIMPLEMENTED();
   return nullptr;
 }
 
 const std::string& ChromeLauncherControllerMus::GetLaunchIDForShelfID(
     ash::ShelfID id) {
   NOTIMPLEMENTED();
   return base::EmptyString();
 }
 
+const std::string& ChromeLauncherControllerMus::GetTitleForShelfID(
+    ash::ShelfID id) {
+  NOTIMPLEMENTED();
+  return base::EmptyString();
+}
+
 void ChromeLauncherControllerMus::OnAppImageUpdated(
     const std::string& app_id,
     const gfx::ImageSkia& image) {
   if (ConnectToShelfController())
     shelf_controller()->SetItemImage(app_id, *image.bitmap());
 }
 
 void ChromeLauncherControllerMus::PinAppsFromPrefs() {
   if (!ConnectToShelfController())
     return;
@@ skipping 22 matching lines @@
     app_id_to_item_delegate_.insert(
         std::make_pair(app_id, std::move(delegate)));
 
     AppIconLoader* app_icon_loader = GetAppIconLoaderForApp(app_id);
     if (app_icon_loader) {
       app_icon_loader->FetchImage(app_id);
       app_icon_loader->UpdateImage(app_id);
     }
   }
 }