Do not activate system tray bubble by default

ash/common/system/tray/actionable_view.h

 // Copyright 2013 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 ASH_COMMON_SYSTEM_TRAY_ACTIONABLE_VIEW_H_
 #define ASH_COMMON_SYSTEM_TRAY_ACTIONABLE_VIEW_H_
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "ui/views/view.h"
 
 namespace ash {
+class SystemTrayItem;
 
 // A focusable view that performs an action when user clicks on it, or presses
 // enter or space when focused. Note that the action is triggered on mouse-up,
 // instead of on mouse-down. So if user presses the mouse on the view, then
 // moves the mouse out of the view and then releases, then the action will not
 // be performed.
 // Exported for SystemTray.
 class ASH_EXPORT ActionableView : public views::View {
  public:
   static const char kViewClassName[];
 
-  ActionableView();
+  explicit ActionableView(SystemTrayItem* owner);

[James Cook, 2016/09/22 21:17:16]

nit: document that |owner| can be null, and what that means.

[oshima, 2016/09/23 09:37:19]

Done.

 
   ~ActionableView() override;
 
   void SetAccessibleName(const base::string16& name);
   const base::string16& accessible_name() const { return accessible_name_; }
 
+  void CloseSystemBubble();

[James Cook, 2016/09/22 21:17:16]

nit: document

[oshima, 2016/09/23 09:37:19]

Done.

+
  protected:
+  SystemTrayItem* owner() { return owner_; }
+
   void OnPaintFocus(gfx::Canvas* canvas);
 
   // Returns the bounds to paint the focus rectangle in.
   virtual gfx::Rect GetFocusBounds();
 
   // Performs an action when user clicks on the view (on mouse-press event), or
   // presses a key when this view is in focus. Returns true if the event has
   // been handled and an action was performed. Returns false otherwise.
   virtual bool PerformAction(const ui::Event& event) = 0;
 
   // Overridden from views::View.
   const char* GetClassName() const override;
   bool OnKeyPressed(const ui::KeyEvent& event) override;
   bool OnMousePressed(const ui::MouseEvent& event) override;
   void OnMouseReleased(const ui::MouseEvent& event) override;
   void OnMouseCaptureLost() override;
   void GetAccessibleState(ui::AXViewState* state) override;
   void OnPaint(gfx::Canvas* canvas) override;
   void OnFocus() override;
   void OnBlur() override;
 
   // Overridden from ui::EventHandler.
   void OnGestureEvent(ui::GestureEvent* event) override;
 
  private:
+  SystemTrayItem* owner_;
+
   base::string16 accessible_name_;
   bool has_capture_;
 
   DISALLOW_COPY_AND_ASSIGN(ActionableView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_ACTIONABLE_VIEW_H_