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..e96683b5ca92790b2b9861c221c0a9d051eca125
--- /dev/null
+++ b/ui/message_center/message_center_constants.h
@@ -0,0 +1,14 @@
+// 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_
+
+namespace message_center {
+
+extern const int kNotificationIconWidth;
+
+}  // namespace message_center
+
+#endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_CONSTANTS_H_