add ash_resources.grd and necessary changes to use images in ash/resources

ash/wm/image_cursors.cc

 // Copyright (c) 2012 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/wm/image_cursors.h"
 
 #include "base/logging.h"
 #include "ui/base/cursor/cursor_loader.h"
 #include "ui/base/cursor/cursor.h"
 #include "ui/gfx/point.h"
+#include "grit/ash_resources.h"
 #include "grit/ui_resources.h"
 
 namespace {
 
 const int kAnimatedCursorFrameDelayMs = 25;
 
 struct HotPoint {
   int x;
   int y;
 };
@@ skipping 93 matching lines @@
                                        gfx::Point(hot.x, hot.y),
                                        kAnimatedCursorFrameDelayMs);
   }
 }
 
 void ImageCursors::SetPlatformCursor(gfx::NativeCursor* cursor) {
   cursor_loader_->SetPlatformCursor(cursor);
 }
 
 }  // namespace ash