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

headless/test/headless_browser_test.cc

 // Copyright 2016 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 "headless/test/headless_browser_test.h"
 
 #include "base/files/file_path.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 151 matching lines @@
     const std::string& script) {
   EvaluateHelper helper(this, web_contents, script);
   RunAsynchronousTest();
   return helper.TakeResult();
 }
 
 void HeadlessBrowserTest::RunAsynchronousTest() {
   base::MessageLoop::ScopedNestableTaskAllower nestable_allower(
       base::MessageLoop::current());
   EXPECT_FALSE(run_loop_);
-  run_loop_ = base::WrapUnique(new base::RunLoop());
+  run_loop_ = base::MakeUnique<base::RunLoop>();
   run_loop_->Run();
   run_loop_ = nullptr;
 }
 
 void HeadlessBrowserTest::FinishAsynchronousTest() {
   run_loop_->Quit();
 }
 
 HeadlessAsyncDevTooledBrowserTest::HeadlessAsyncDevTooledBrowserTest()
     : web_contents_(nullptr),
@@ skipping 17 matching lines @@
 
   web_contents_->GetDevToolsTarget()->DetachClient(devtools_client_.get());
   web_contents_->RemoveObserver(this);
   web_contents_->Close();
   web_contents_ = nullptr;
   browser_context_->Close();
   browser_context_ = nullptr;
 }
 
 }  // namespace headless