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

chrome/browser/extensions/api/downloads/downloads_api_unittest.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 "chrome/browser/extensions/api/downloads/downloads_api.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/download/download_history.h"
 #include "chrome/browser/download/download_service_factory.h"
@@ skipping 91 matching lines @@
   std::unique_ptr<MockDownloadManager> manager_;
   content::DownloadManager::Observer* download_history_manager_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadsApiUnitTest);
 };
 
 // static
 std::unique_ptr<KeyedService>
 DownloadsApiUnitTest::TestingDownloadServiceFactory(
     content::BrowserContext* browser_context) {
-  return base::WrapUnique(
-      new TestDownloadService(Profile::FromBrowserContext(browser_context)));
+  return base::MakeUnique<TestDownloadService>(
+      Profile::FromBrowserContext(browser_context));
 }
 
 // Tests that Number/double properties in query are parsed correctly.
 // Regression test for https://crbug.com/617435.
 TEST_F(DownloadsApiUnitTest, ParseSearchQuery) {
   RunFunction(new DownloadsSearchFunction, "[{\"totalBytesLess\":1}]");
   RunFunction(new DownloadsSearchFunction, "[{\"totalBytesGreater\":2}]");
 }
 
 }  // namespace extensions