Re-write many calls to WrapUnique() with MakeUnique()

ash/wm/drag_window_controller.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/drag_window_controller.h"
 
 #include <algorithm>
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/shell_window_ids.h"
@@ skipping 188 matching lines @@
 DragWindowController::DragWindowController(aura::Window* window)
     : window_(window) {
   DCHECK(drag_windows_.empty());
   display::Screen* screen = display::Screen::GetScreen();
   display::Display current = screen->GetDisplayNearestWindow(window_);
 
   for (const display::Display& display : screen->GetAllDisplays()) {
     if (current.id() == display.id())
       continue;
     drag_windows_.push_back(
-        base::WrapUnique(new DragWindowDetails(display, window_)));
+        base::MakeUnique<DragWindowDetails>(display, window_));
   }
 }
 
 DragWindowController::~DragWindowController() {}
 
 void DragWindowController::Update(const gfx::Rect& bounds_in_screen,
                                   const gfx::Point& drag_location_in_screen) {
   for (std::unique_ptr<DragWindowDetails>& details : drag_windows_)
     details->Update(window_, bounds_in_screen, drag_location_in_screen);
 }
@@ skipping 41 matching lines @@
       layers.pop_back();
       if (layer->delegate())
         layer->delegate()->OnPaintLayer(context);
       for (auto* child : layer->children())
         layers.push_back(child);
     }
   }
 }
 
 }  // namespace ash