Cleanup: Remove unneeded headers from app/ (part 2)

views/controls/button/native_button.cc

 // Copyright (c) 2010 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 "views/controls/button/native_button.h"
 
 #if defined(OS_LINUX)
 #include <gdk/gdkkeysyms.h>
 #include "views/screen.h"
 #endif
 
-#include "app/l10n_util.h"
 #include "base/i18n/rtl.h"
 #include "base/keyboard_codes.h"
 #include "base/logging.h"
 #include "views/controls/native/native_view_host.h"
 
 namespace views {
 
 #if defined(OS_WIN)
 // The min size in DLUs comes from
 // http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwue/html/ch14e.asp
@@ skipping 203 matching lines @@
   native_wrapper->UpdateEnabled();
   return native_wrapper;
 }
 
 void NativeButton::InitBorder() {
   set_border(Border::CreateEmptyBorder(0, kButtonBorderHWidth, 0,
                                        kButtonBorderHWidth));
 }
 
 }  // namespace views