Change base::DictionaryValue mojo deserialization to not expand paths.

mojo/common/common_custom_types_unittest.cc

Index: mojo/common/common_custom_types_unittest.cc
diff --git a/mojo/common/common_custom_types_unittest.cc b/mojo/common/common_custom_types_unittest.cc
index b2bb622e9ca92232d1533ae51447cb86fe579392..17478d1c681557e1502148b47612112b87cf3370 100644
--- a/mojo/common/common_custom_types_unittest.cc
+++ b/mojo/common/common_custom_types_unittest.cc
@@ -307,6 +307,7 @@ TEST_F(CommonCustomTypesTest, Value) {
   dict->Set("some_binary",
             base::BinaryValue::CreateWithCopiedBuffer("mojo", 4));
   dict->Set("null_value", base::Value::CreateNullValue());
+  dict->SetIntegerWithoutPathExpansion("non_nested.int", 10);
   {
     std::unique_ptr<base::ListValue> dict_list(new base::ListValue());
     dict_list->AppendString("string");