Updated multiple item notification view to match latest mockups

ui/message_center/message_center_constants.h

Index: ui/message_center/message_center_constants.h
diff --git a/ui/message_center/message_center_constants.h b/ui/message_center/message_center_constants.h
new file mode 100644
index 0000000000000000000000000000000000000000..b82650a60f60c468271db5b592bdfb2dad43fdb5
--- /dev/null
+++ b/ui/message_center/message_center_constants.h
@@ -0,0 +1,16 @@
+// 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.
+
+#ifndef UI_MESSAGE_CENTER_MESSAGE_CENTER_CONSTANTS_H_
+#define UI_MESSAGE_CENTER_MESSAGE_CENTER_CONSTANTS_H_
+
+#include "ui/message_center/message_center_export.h"
+
+namespace message_center {
+
+MESSAGE_CENTER_EXPORT extern const int kNotificationIconWidth;
+
+}  // namespace message_center
+
+#endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_CONSTANTS_H_