Convert //ash from scoped_ptr to std::unique_ptr

ash/wm/panels/panel_layout_manager.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/wm/panels/panel_layout_manager.h"
 
 #include <algorithm>
 #include <map>
 #include <utility>
 
@@ skipping 516 matching lines @@
 // PanelLayoutManager, ShelfLayoutManagerObserver implementation:
 
 void PanelLayoutManager::WillChangeVisibilityState(
     ShelfVisibilityState new_state) {
   // On entering / leaving full screen mode the shelf visibility state is
   // changed to / from SHELF_HIDDEN. In this state, panel windows should hide
   // to allow the full-screen application to use the full screen.
   bool shelf_hidden = new_state == ash::SHELF_HIDDEN;
   if (!shelf_hidden) {
     if (restore_windows_on_shelf_visible_) {
-      scoped_ptr<aura::WindowTracker> restore_windows(
+      std::unique_ptr<aura::WindowTracker> restore_windows(
           std::move(restore_windows_on_shelf_visible_));
       for (aura::Window::Windows::const_iterator iter =
                restore_windows->windows().begin();
            iter != restore_windows->windows().end(); ++iter) {
         RestorePanel(*iter);
       }
     }
     return;
   }
 
   if (restore_windows_on_shelf_visible_)
     return;
-  scoped_ptr<aura::WindowTracker> minimized_windows(new aura::WindowTracker);
+  std::unique_ptr<aura::WindowTracker> minimized_windows(
+      new aura::WindowTracker);
   for (PanelList::iterator iter = panel_windows_.begin();
        iter != panel_windows_.end();) {
     aura::Window* window = iter->window;
     // Minimizing a panel window may remove it from the panel_windows_ list.
     // Advance the iterator before minimizing it: http://crbug.com/393047.
     ++iter;
     if (window != dragged_panel_ && window->IsVisible()) {
       minimized_windows->Add(window);
       wm::GetWindowState(window)->Minimize();
     }
@@ skipping 367 matching lines @@
       // Keyboard hidden, restore original bounds if they exist.
       SetChildBounds(panel, panel_state->GetRestoreBoundsInScreen());
     }
   }
   // This bounds change will have caused a change to the Shelf which does not
   // propogate automatically to this class, so manually recalculate bounds.
   OnWindowResized();
 }
 
 }  // namespace ash