Fix unable to delete extensions continuously through keyboard

ui/views/widget/desktop_aura/desktop_native_widget_aura.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 UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 268 matching lines @@
   std::unique_ptr<DropHelper> drop_helper_;
   int last_drop_operation_;
 
   std::unique_ptr<corewm::TooltipController> tooltip_controller_;
   std::unique_ptr<TooltipManagerAura> tooltip_manager_;
 
   std::unique_ptr<wm::VisibilityController> visibility_controller_;
 
   std::unique_ptr<wm::WindowModalityController> window_modality_controller_;
 
+  bool restore_focus_on_activate_;
+
   gfx::NativeCursor cursor_;
   // We must manually reference count the number of users of |cursor_manager_|
   // because the cursors created by |cursor_manager_| are shared among the
   // DNWAs. We can't just stuff this in a LazyInstance because we need to
   // destroy this as the last DNWA happens; we can't put it off until
   // (potentially) after we tear down the X11 connection because that's a
   // crash.
   static int cursor_reference_count_;
   static wm::CursorManager* cursor_manager_;
   static DesktopNativeCursorManager* native_cursor_manager_;
@@ skipping 10 matching lines @@
   // The following factory is used for calls to close the NativeWidgetAura
   // instance.
   base::WeakPtrFactory<DesktopNativeWidgetAura> close_widget_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNativeWidgetAura);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_