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

extensions/browser/user_script_loader.cc

Index: extensions/browser/user_script_loader.cc
diff --git a/extensions/browser/user_script_loader.cc b/extensions/browser/user_script_loader.cc
index f045bcf5c4459a35006ac32c1c55735b961e7396..1e73c16643200485daf827a097e37f2b7c4500d6 100644
--- a/extensions/browser/user_script_loader.cc
+++ b/extensions/browser/user_script_loader.cc
@@ -334,8 +334,8 @@ std::unique_ptr<base::SharedMemory> UserScriptLoader::Serialize(
                                             &readonly_handle))
     return std::unique_ptr<base::SharedMemory>();
 
-  return base::WrapUnique(new base::SharedMemory(readonly_handle,
-                                                 /*read_only=*/true));
+  return base::MakeUnique<base::SharedMemory>(readonly_handle,
+                                              /*read_only=*/true);
 }
 
 void UserScriptLoader::AddObserver(Observer* observer) {