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

content/browser/fileapi/dragged_file_util_unittest.cc

 // Copyright 2013 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 <stddef.h>
 
 #include <map>
 #include <memory>
 #include <queue>
 #include <set>
@@ skipping 235 matching lines @@
           continue;
         }
         base::FilePath relative = GetRelativeVirtualPath(root2, url2);
         EXPECT_TRUE(file_set1.find(relative) != file_set1.end());
         VerifyFilesHaveSameContent(url1, url2);
       }
     }
   }
 
   std::unique_ptr<storage::FileSystemOperationContext> GetOperationContext() {
-    return base::WrapUnique(
-        new storage::FileSystemOperationContext(file_system_context()));
+    return base::MakeUnique<storage::FileSystemOperationContext>(
+        file_system_context());
   }
 
 
  private:
   void SimulateDropFiles() {
     size_t root_path_index = 0;
 
     storage::IsolatedContext::FileInfoSet toplevels;
     for (size_t i = 0; i < kRegularFileSystemTestCaseSize; ++i) {
       const FileSystemTestCaseRecord& test_case =
@@ skipping 280 matching lines @@
     EXPECT_EQ(base::File::FILE_OK,
               file_util()->Truncate(GetOperationContext().get(), url, 999));
     ASSERT_EQ(base::File::FILE_OK,
               file_util()->GetFileInfo(GetOperationContext().get(), url,
                                        &info, &platform_path));
     EXPECT_EQ(999, info.size);
   }
 }
 
 }  // namespace content