Clean up unused grit header includes in ui/.

ui/app_list/folder_image.cc

 // Copyright 2014 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 "ui/app_list/folder_image.h"
 
 #include <vector>
 
 #include "base/macros.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_item.h"
 #include "ui/app_list/app_list_item_list.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/point_f.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/image/canvas_image_source.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_operations.h"
-#include "ui/strings/grit/ui_strings.h"
 
 namespace app_list {
 
 namespace {
 
 const int kItemIconDimension = 16;
 
 // Gets the size of a small app icon inside the folder icon.
 gfx::Size ItemIconSize() {
   return gfx::Size(kItemIconDimension, kItemIconDimension);
@@ skipping 188 matching lines @@
 
   const gfx::Size icon_size = gfx::Size(kGridIconDimension, kGridIconDimension);
   icon_ =
       gfx::ImageSkia(new FolderImageSource(top_icons, icon_size), icon_size);
 
   for (auto& observer : observers_)
     observer.OnFolderImageUpdated();
 }
 
 }  // namespace app_list