Eliminate ash::internal namespace

ash/system/web_notification/web_notification_tray.h

Index: ash/system/web_notification/web_notification_tray.h
diff --git a/ash/system/web_notification/web_notification_tray.h b/ash/system/web_notification/web_notification_tray.h
index fdaf4d0c6d7abec1726240eab85fcd48e0530fd6..88be4b2bd272e2d18edaa9914ff6170820a00366 100644
--- a/ash/system/web_notification/web_notification_tray.h
+++ b/ash/system/web_notification/web_notification_tray.h
@@ -38,23 +38,20 @@ class MessagePopupCollection;
 }
 
 namespace ash {
-namespace internal {
 class StatusAreaWidget;
 class WebNotificationBubbleWrapper;
 class WebNotificationButton;
 class WorkAreaObserver;
-}
 
 class ASH_EXPORT WebNotificationTray
-    : public internal::TrayBackgroundView,
+    : public TrayBackgroundView,
       public views::TrayBubbleView::Delegate,
       public message_center::MessageCenterTrayDelegate,
       public views::ButtonListener,
       public base::SupportsWeakPtr<WebNotificationTray>,
       public ui::SimpleMenuModel::Delegate {
  public:
-  explicit WebNotificationTray(
-      internal::StatusAreaWidget* status_area_widget);
+  explicit WebNotificationTray(StatusAreaWidget* status_area_widget);
   virtual ~WebNotificationTray();
 
   // Sets the height of the system tray from the edge of the work area so that
@@ -85,7 +82,7 @@ class ASH_EXPORT WebNotificationTray
       const views::TrayBubbleView* bubble_view) OVERRIDE;
   virtual bool ClickedOutsideBubble() OVERRIDE;
 
-  // Overridden from internal::ActionableView.
+  // Overridden from ActionableView.
   virtual bool PerformAction(const ui::Event& event) OVERRIDE;
 
   // Overridden from views::TrayBubbleView::Delegate.
@@ -154,7 +151,7 @@ class ASH_EXPORT WebNotificationTray
   // Creates the menu model for quiet mode and returns it.
   ui::MenuModel* CreateQuietModeMenu();
 
-  internal::WebNotificationBubbleWrapper* message_center_bubble() const {
+  WebNotificationBubbleWrapper* message_center_bubble() const {
     return message_center_bubble_.get();
   }
 
@@ -163,9 +160,9 @@ class ASH_EXPORT WebNotificationTray
   message_center::MessageCenterBubble* GetMessageCenterBubbleForTest();
 
   scoped_ptr<message_center::MessageCenterTray> message_center_tray_;
-  scoped_ptr<internal::WebNotificationBubbleWrapper> message_center_bubble_;
+  scoped_ptr<WebNotificationBubbleWrapper> message_center_bubble_;
   scoped_ptr<message_center::MessagePopupCollection> popup_collection_;
-  internal::WebNotificationButton* button_;
+  WebNotificationButton* button_;
 
   bool show_message_center_on_unlock_;
 
@@ -178,7 +175,7 @@ class ASH_EXPORT WebNotificationTray
   bool should_block_shelf_auto_hide_;
 
   // Observes the work area for |popup_collection_| and notifies to it.
-  scoped_ptr<internal::WorkAreaObserver> work_area_observer_;
+  scoped_ptr<WorkAreaObserver> work_area_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(WebNotificationTray);
 };