Replace ShelfItemDelegate::GetTitle() with ShelfItem::title.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl_unittest.cc

 // Copyright 2013 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_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 249 matching lines @@
   void Launch(ash::LaunchSource source, int event_flags) override {}
   ash::ShelfItemDelegate::PerformedAction Activate(
       ash::LaunchSource source) override {
     return kExistingWindowActivated;
   }
   void Close() override {}
   ash::ShelfItemDelegate::PerformedAction ItemSelected(
       const ui::Event& event) override {
     return kExistingWindowActivated;
   }
-  base::string16 GetTitle() override { return base::string16(); }
   ChromeLauncherAppMenuItems GetApplicationList(int event_flags) override {
     ChromeLauncherAppMenuItems items;
     items.push_back(base::MakeUnique<ChromeLauncherAppMenuItem>(
         base::string16(), nullptr, false));
     items.push_back(base::MakeUnique<ChromeLauncherAppMenuItem>(
         base::string16(), nullptr, false));
     return items;
   }
   ash::ShelfMenuModel* CreateApplicationMenu(int event_flags) override {
     return NULL;
@@ skipping 3784 matching lines @@
 
   // Pinned state should not change.
   EXPECT_EQ("AppList, Chrome, App1, App2", GetPinnedAppStatus());
   launcher_controller_->UnpinAppWithID(extension2_->id());
   EXPECT_EQ("AppList, Chrome, App1", GetPinnedAppStatus());
 
   // Resume syncing and sync information overrides local copy.
   StartAppSyncService(copy_sync_list);
   EXPECT_EQ("AppList, Chrome, App1, App2", GetPinnedAppStatus());
 }