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

extensions/shell/browser/shell_native_app_window_aura_unittest.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 "extensions/shell/browser/shell_native_app_window_aura.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 37 matching lines @@
                            .Set("version", "1")
                            .Set("manifest_version", 2)
                            .Build())
           .Build();
 
   AppWindow* app_window = new AppWindow(
       browser_context.get(), new ShellAppDelegate, extension.get());
   content::WebContents* web_contents = content::WebContents::Create(
       content::WebContents::CreateParams(browser_context.get()));
   app_window->SetAppWindowContentsForTesting(
-      base::WrapUnique(new TestAppWindowContents(web_contents)));
+      base::MakeUnique<TestAppWindowContents>(web_contents));
 
   AppWindow::BoundsSpecification window_spec;
   window_spec.bounds = gfx::Rect(100, 200, 300, 400);
   AppWindow::CreateParams params;
   params.window_spec = window_spec;
 
   ShellNativeAppWindowAura window(app_window, params);
 
   gfx::Rect bounds = window.GetBounds();
   EXPECT_EQ(window_spec.bounds, bounds);
 
   // Delete the AppWindow.
   app_window->OnNativeClose();
 }
 
 }  // namespace extensions