Cleanup: Remove misc unneeded grit includes.

ash/shell/shelf_delegate_impl.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 "ash/shell/shelf_delegate_impl.h"
 
 #include "ash/shell.h"
 #include "ash/shell/toplevel_window.h"
 #include "ash/shell/window_watcher.h"
 #include "ash/wm/window_util.h"
 #include "base/strings/string_util.h"
-#include "grit/ash_resources.h"
 
 namespace ash {
 namespace shell {
 
 ShelfDelegateImpl::ShelfDelegateImpl(WindowWatcher* watcher)
     : watcher_(watcher) {
 }
 
 ShelfDelegateImpl::~ShelfDelegateImpl() {
 }
@@ skipping 21 matching lines @@
 
 bool ShelfDelegateImpl::CanPin() const {
   return false;
 }
 
 void ShelfDelegateImpl::UnpinAppWithID(const std::string& app_id) {
 }
 
 }  // namespace shell
 }  // namespace ash