Replace scoped_ptr with std::unique_ptr in //ui

ui/views/widget/desktop_aura/desktop_window_tree_host_win.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_WINDOW_TREE_HOST_WIN_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_WIN_H_
 
 #include "base/macros.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/views/views_export.h"
@@ skipping 30 matching lines @@
   ~DesktopWindowTreeHostWin() override;
 
   // A way of converting an HWND into a content window.
   static aura::Window* GetContentWindowForHWND(HWND hwnd);
 
  protected:
   // Overridden from DesktopWindowTreeHost:
   void Init(aura::Window* content_window,
             const Widget::InitParams& params) override;
   void OnNativeWidgetCreated(const Widget::InitParams& params) override;
-  scoped_ptr<corewm::Tooltip> CreateTooltip() override;
-  scoped_ptr<aura::client::DragDropClient> CreateDragDropClient(
+  std::unique_ptr<corewm::Tooltip> CreateTooltip() override;
+  std::unique_ptr<aura::client::DragDropClient> CreateDragDropClient(
       DesktopNativeCursorManager* cursor_manager) override;
   void Close() override;
   void CloseNow() override;
   aura::WindowTreeHost* AsWindowTreeHost() override;
   void ShowWindowWithState(ui::WindowShowState show_state) override;
   void ShowMaximizedWithBounds(const gfx::Rect& restored_bounds) override;
   bool IsVisible() const override;
   void SetSize(const gfx::Size& size) override;
   void StackAbove(aura::Window* window) override;
   void StackAtTop() override;
@@ skipping 135 matching lines @@
   Widget* GetWidget();
   const Widget* GetWidget() const;
   HWND GetHWND() const;
 
  private:
   void SetWindowTransparency();
 
   // Returns true if a modal window is active in the current root window chain.
   bool IsModalWindowActive() const;
 
-  scoped_ptr<HWNDMessageHandler> message_handler_;
-  scoped_ptr<aura::client::FocusClient> focus_client_;
+  std::unique_ptr<HWNDMessageHandler> message_handler_;
+  std::unique_ptr<aura::client::FocusClient> focus_client_;
 
   // TODO(beng): Consider providing an interface to DesktopNativeWidgetAura
   //             instead of providing this route back to Widget.
   internal::NativeWidgetDelegate* native_widget_delegate_;
 
   DesktopNativeWidgetAura* desktop_native_widget_aura_;
 
   aura::Window* content_window_;
 
   // Owned by DesktopNativeWidgetAura.
@@ skipping 31 matching lines @@
   // Owned by TooltipController, but we need to forward events to it so we keep
   // a reference.
   corewm::TooltipWin* tooltip_;
 
   // Visibility of the cursor. On Windows we can have multiple root windows and
   // the implementation of ::ShowCursor() is based on a counter, so making this
   // member static ensures that ::ShowCursor() is always called exactly once
   // whenever the cursor visibility state changes.
   static bool is_cursor_visible_;
 
-  scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
+  std::unique_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
 
   // Indicates if current window will receive mouse events when should not
   // become activated.
   bool wants_mouse_events_when_inactive_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostWin);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_WIN_H_