chromeos: Remove TrayBubbleView::Delegate::OnBeforeBubbleWidgetInit

ash/system/palette/palette_tray.h

 // Copyright 2016 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_PALETTE_PALETTE_TRAY_H_
 #define ASH_SYSTEM_PALETTE_PALETTE_TRAY_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "ash/palette_delegate.h"
 #include "ash/session/session_observer.h"
 #include "ash/shell_observer.h"
 #include "ash/system/palette/palette_tool_manager.h"
 #include "ash/system/tray/tray_background_view.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "ui/events/devices/input_device_event_observer.h"
 
 namespace gfx {
 class Point;
 }
 
 namespace views {
 class ImageView;
-class Widget;
 }
 
 namespace ash {
 
 class TrayBubbleWrapper;
 class PaletteToolManager;
 
 // The PaletteTray shows the palette in the bottom area of the screen. This
 // class also controls the lifetime for all of the tools available in the
 // palette. PaletteTray has one instance per-display. It is only made visible if
@@ skipping 41 matching lines @@
  private:
   // ui::InputDeviceObserver:
   void OnTouchscreenDeviceConfigurationChanged() override;
   void OnStylusStateChanged(ui::StylusState stylus_state) override;
 
   // views::TrayBubbleView::Delegate:
   void BubbleViewDestroyed() override;
   void OnMouseEnteredView() override;
   void OnMouseExitedView() override;
   base::string16 GetAccessibleNameForBubble() override;
-  void OnBeforeBubbleWidgetInit(
-      views::Widget* anchor_widget,
-      views::Widget* bubble_widget,
-      views::Widget::InitParams* params) const override;
   void HideBubble(const views::TrayBubbleView* bubble_view) override;
 
   // PaletteToolManager::Delegate:
   void OnActiveToolChanged() override;
   aura::Window* GetWindow() override;
 
   // Updates the tray icon from the palette tool manager.
   void UpdateTrayIcon();
 
   // Sets the icon to visible if the palette can be used.
@@ skipping 26 matching lines @@
   ScopedSessionObserver scoped_session_observer_;
 
   base::WeakPtrFactory<PaletteTray> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PaletteTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_PALETTE_PALETTE_TRAY_H_