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

components/autofill/content/renderer/password_autofill_agent.cc

Index: components/autofill/content/renderer/password_autofill_agent.cc
diff --git a/components/autofill/content/renderer/password_autofill_agent.cc b/components/autofill/content/renderer/password_autofill_agent.cc
index 282f10a3fa0a9999750d0a3218069a250db66568..34e28598f3145eb9c75ac0ff73b0ef58e46d428d 100644
--- a/components/autofill/content/renderer/password_autofill_agent.cc
+++ b/components/autofill/content/renderer/password_autofill_agent.cc
@@ -367,7 +367,7 @@ void UpdateFieldValueAndPropertiesMaskMap(
     it->second.second |= added_flags;
   } else {
     (*field_value_and_properties_map)[element] = std::make_pair(
-        value ? base::WrapUnique(new base::string16(*value)) : nullptr,
+        value ? base::MakeUnique<base::string16>(*value) : nullptr,
         added_flags);
   }
 }