Convert //ash from scoped_ptr to std::unique_ptr

ash/wm/lock_window_state.cc

 // Copyright 2014 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/wm/lock_window_state.h"
 
 #include <utility>
 
 #include "ash/display/display_manager.h"
 #include "ash/screen_util.h"
@@ skipping 94 matching lines @@
     UpdateWindow(window_state,
                  GetMaximizedOrCenteredWindowType(window_state));
   }
 }
 
 void LockWindowState::DetachState(wm::WindowState* window_state) {
 }
 
 // static
 wm::WindowState* LockWindowState::SetLockWindowState(aura::Window* window) {
-  scoped_ptr<wm::WindowState::State> lock_state(new LockWindowState(window));
-  scoped_ptr<wm::WindowState::State> old_state(
+  std::unique_ptr<wm::WindowState::State> lock_state(
+      new LockWindowState(window));
+  std::unique_ptr<wm::WindowState::State> old_state(
       wm::GetWindowState(window)->SetStateObject(std::move(lock_state)));
   return wm::GetWindowState(window);
 }
 
 void LockWindowState::UpdateWindow(wm::WindowState* window_state,
                                    wm::WindowStateType target_state) {
   DCHECK(target_state == wm::WINDOW_STATE_TYPE_MINIMIZED ||
          target_state == wm::WINDOW_STATE_TYPE_MAXIMIZED ||
          (target_state == wm::WINDOW_STATE_TYPE_NORMAL &&
               !window_state->CanMaximize()) ||
@@ skipping 67 matching lines @@
   gfx::Rect bounds =
       ScreenUtil::GetShelfDisplayBoundsInRoot(window_state->window());
 
   bounds.set_height(bounds.height() - keyboard_bounds.height());
 
   VLOG(1) << "Updating window bounds to: " << bounds.ToString();
   window_state->SetBoundsDirect(bounds);
 }
 
 }  // namespace ash