Fix shelf layout when switching from left-aligned shelf to right-aligned shelf

ash/system/tray/system_tray.h

 // 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 ASH_SYSTEM_TRAY_SYSTEM_TRAY_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 28 matching lines @@
 
 class ASH_EXPORT SystemTray : public TrayBackgroundView,
                               public views::TrayBubbleView::Delegate {
  public:
   explicit SystemTray(WmShelf* wm_shelf);
   ~SystemTray() override;
 
   // Calls TrayBackgroundView::Initialize(), creates the tray items, and
   // adds them to SystemTrayNotifier.
   void InitializeTrayItems(SystemTrayDelegate* delegate,
-                           WebNotificationTray* web_notification_tray);
+                           WebNotificationTray* web_notification_tray,
+                           const gfx::Insets& insets);
 
   // Resets internal pointers.
   void Shutdown();
 
   // Adds a new item in the tray.
   void AddTrayItem(SystemTrayItem* item);
 
   // Removes an existing tray item.
   void RemoveTrayItem(SystemTrayItem* item);
 
@@ skipping 63 matching lines @@
   // Returns view for help button if default view is shown. Returns NULL
   // otherwise.
   views::View* GetHelpButtonView() const;
 
   // Accessors for testing.
 
   // Returns true if the bubble exists.
   bool CloseNotificationBubbleForTest() const;
 
   // Overridden from TrayBackgroundView.
-  void SetShelfAlignment(ShelfAlignment alignment) override;
+  void SetShelfAlignment(ShelfAlignment alignment,
+                         const gfx::Insets& insets) override;
   void AnchorUpdated() override;
   base::string16 GetAccessibleNameForTray() override;
   void BubbleResized(const views::TrayBubbleView* bubble_view) override;
   void HideBubbleWithView(const views::TrayBubbleView* bubble_view) override;
   void ClickedOutsideBubble() override;
 
   // views::TrayBubbleView::Delegate:
   void BubbleViewDestroyed() override;
   void OnMouseEnteredView() override;
   void OnMouseExitedView() override;
@@ skipping 114 matching lines @@
   // A reference to the Screen share and capture item.
   ScreenTrayItem* screen_capture_tray_item_;  // not owned
   ScreenTrayItem* screen_share_tray_item_;    // not owned
 
   DISALLOW_COPY_AND_ASSIGN(SystemTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_H_