Remove callers of mojo::Array<size_t> constructor in favor of ::New

mojo/converters/array_string/array_string_type_converters.cc

Index: mojo/converters/array_string/array_string_type_converters.cc
diff --git a/mojo/converters/array_string/array_string_type_converters.cc b/mojo/converters/array_string/array_string_type_converters.cc
index 02019f00bb652ea73f1a55c55eba2bbc872d81c8..84d3c2a20a9d97869c5f36287ba9834746bdba96 100644
--- a/mojo/converters/array_string/array_string_type_converters.cc
+++ b/mojo/converters/array_string/array_string_type_converters.cc
@@ -21,7 +21,7 @@ std::string TypeConverter<std::string, Array<uint8_t>>::Convert(
 
 Array<uint8_t> TypeConverter<Array<uint8_t>, std::string>::Convert(
     const std::string& input) {
-  Array<uint8_t> result(input.size());
+  auto result = Array<uint8_t>::New(input.size());
   memcpy(&result.front(), input.c_str(), input.size());
   return result.Pass();
 }