Add WebNotificationTray

ash/system/tray/system_tray_bubble.h

Index: ash/system/tray/system_tray_bubble.h
diff --git a/ash/system/tray/system_tray_bubble.h b/ash/system/tray/system_tray_bubble.h
index fbb2bc0eca3903c06970729faca7f2680cea219b..db313948edea00d2e846c6876b39fd98a2bea7ce 100644
--- a/ash/system/tray/system_tray_bubble.h
+++ b/ash/system/tray/system_tray_bubble.h
@@ -6,12 +6,12 @@
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_BUBBLE_H_
 #pragma once
 
+#include "ash/system/tray/system_tray_bubble_view.h"
 #include "ash/system/user/login_status.h"
 #include "ash/wm/shelf_auto_hide_behavior.h"
 #include "base/base_export.h"
 #include "base/timer.h"
 #include "ui/aura/event_filter.h"
-#include "ui/views/bubble/bubble_delegate.h"
 #include "ui/views/widget/widget.h"
 
 #include <vector>
@@ -27,52 +27,9 @@ class SystemTrayItem;
 
 namespace internal {
 
-class SystemTrayBubble;
-
-class SystemTrayBubbleView : public views::BubbleDelegateView {
- public:
-  SystemTrayBubbleView(views::View* anchor,
-                       views::BubbleBorder::ArrowLocation arrow_location,
-                       SystemTrayBubble* host,
-                       bool can_activate);
-  virtual ~SystemTrayBubbleView();
-
-  void SetBubbleBorder(views::BubbleBorder* border);
-
-  void UpdateAnchor();
-
-  // Called when the host is destroyed.
-  void reset_host() { host_ = NULL; }
-
- private:
-  friend class SystemTrayBubble;
-
-  // Overridden from views::BubbleDelegateView.
-  virtual void Init() OVERRIDE;
-  virtual gfx::Rect GetAnchorRect() OVERRIDE;
-  virtual bool CanActivate() const OVERRIDE;
-
-  // Overridden from views::View.
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
-  virtual void OnMouseEntered(const views::MouseEvent& event) OVERRIDE;
-  virtual void OnMouseExited(const views::MouseEvent& event) OVERRIDE;
-  virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
-  virtual void ChildPreferredSizeChanged(View* child) OVERRIDE;
-  virtual void ViewHierarchyChanged(bool is_add,
-                                    views::View* parent,
-                                    views::View* child) OVERRIDE;
-
-  void set_max_height(int height) { max_height_ = height; }
-
-  SystemTrayBubble* host_;
-  bool can_activate_;
-  int max_height_;
-
-  DISALLOW_COPY_AND_ASSIGN(SystemTrayBubbleView);
-};
-
 class SystemTrayBubble : public aura::EventFilter,
-                         public views::Widget::Observer {
+                         public views::Widget::Observer,
+                         public SystemTrayBubbleView::Host {
  public:
   enum BubbleType {
     BUBBLE_TYPE_DEFAULT,
@@ -109,7 +66,11 @@ class SystemTrayBubble : public aura::EventFilter,
   // Also creates |bubble_widget_| and sets up animations.
   void InitView(const InitParams& init_params);
 
-  gfx::Rect GetAnchorRect() const;
+  // Overridden from SystemTrayBubbleView::Host.
+  virtual void BubbleViewDestroyed() OVERRIDE;
+  virtual gfx::Rect GetAnchorRect() const OVERRIDE;
+  virtual void OnMouseEnteredView() OVERRIDE;
+  virtual void OnMouseExitedView() OVERRIDE;
 
   BubbleType bubble_type() const { return bubble_type_; }
   SystemTrayBubbleView* bubble_view() const { return bubble_view_; }
@@ -119,6 +80,8 @@ class SystemTrayBubble : public aura::EventFilter,
   void StopAutoCloseTimer();
   void RestartAutoCloseTimer();
   void Close();
+  void SetVisible(bool is_visible);
+  bool IsVisible();
 
  private:
   void CreateItemViews(user::LoginStatus login_status);