mash: Remove ash::ShelfGestureHandler and ui::ET_GESTURE_WIN8_EDGE_SWIPE

ash/common/system/status_area_widget_delegate.cc

 // 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.
 
 #include "ash/common/system/status_area_widget_delegate.h"
 
 #include "ash/ash_export.h"
 #include "ash/common/ash_switches.h"
 #include "ash/common/focus_cycler.h"
 #include "ash/common/material_design/material_design_controller.h"
@@ skipping 68 matching lines @@
 
 const views::Widget* StatusAreaWidgetDelegate::GetWidget() const {
   return View::GetWidget();
 }
 
 void StatusAreaWidgetDelegate::OnGestureEvent(ui::GestureEvent* event) {
   views::Widget* target_widget =
       static_cast<views::View*>(event->target())->GetWidget();
   WmWindow* target_window = WmLookup::Get()->GetWindowForWidget(target_widget);
   WmShelf* shelf = target_window->GetRootWindowController()->GetShelf();
-  if (shelf->ProcessGestureEvent(*event, target_window))
+  if (shelf->ProcessGestureEvent(*event))
     event->StopPropagation();
   else
     views::AccessiblePaneView::OnGestureEvent(event);
 }
 
 bool StatusAreaWidgetDelegate::CanActivate() const {
   // We don't want mouse clicks to activate us, but we need to allow
   // activation when the user is using the keyboard (FocusCycler).
   const FocusCycler* focus_cycler = focus_cycler_for_testing_
                                         ? focus_cycler_for_testing_
@@ skipping 131 matching lines @@
   }
   child->SetBorder(views::Border::CreateEmptyBorder(top_edge, left_edge,
                                                     bottom_edge, right_edge));
   // Layout on |child| needs to be updated based on new border value before
   // displaying; otherwise |child| will be showing with old border size.
   // Fix for crbug.com/623438.
   child->Layout();
 }
 
 }  // namespace ash