Change ash no notofication message size and color

ash/system/web_notification/web_notification_tray.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/system/web_notification/web_notification_tray.h"
 
 #include "ash/system/status_area_widget.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/tray_bubble_view.h"
 #include "ash/system/tray/tray_constants.h"
@@ skipping 589 matching lines @@
     for (WebNotificationList::Notifications::const_iterator iter =
              notifications.begin(); iter != notifications.end(); ++iter) {
       WebNotificationView* view = new WebNotificationView(tray_, *iter);
       scroll_content_->AddChildView(view);
       if (++num_children >= kMaxVisibleNotifications)
         break;
     }
     if (num_children == 0) {
       views::Label* label = new views::Label(l10n_util::GetStringUTF16(
           IDS_ASH_WEB_NOTFICATION_TRAY_NO_MESSAGES));
-      label->SetFont(label->font().DeriveFont(2));
+      label->SetFont(label->font().DeriveFont(1));
       label->SetHorizontalAlignment(views::Label::ALIGN_CENTER);
+      label->SetEnabledColor(SK_ColorGRAY);
       scroll_content_->AddChildView(label);
       button_view_->SetCloseAllVisible(false);
     } else {
       button_view_->SetCloseAllVisible(true);
     }
     SizeScrollContent();
     Layout();
     GetWidget()->GetRootView()->SchedulePaint();
   }
 
@@ skipping 420 matching lines @@
 
 void WebNotificationTray::HideBubble(Bubble* bubble) {
   if (bubble == message_center_bubble()) {
     HideMessageCenterBubble();
   } else if (bubble == notification_bubble()) {
     HideNotificationBubble();
   }
 }
 
 }  // namespace ash