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

mojo/common/values_struct_traits.cc

Index: mojo/common/values_struct_traits.cc
diff --git a/mojo/common/values_struct_traits.cc b/mojo/common/values_struct_traits.cc
index 2aece79e5aca8b4731d8d3f72f6148d7cc4d8d85..d085906e86c6d55c036f6aafa865c46942de9f27 100644
--- a/mojo/common/values_struct_traits.cc
+++ b/mojo/common/values_struct_traits.cc
@@ -39,7 +39,7 @@ bool StructTraits<common::mojom::DictionaryValueDataView,
     if (!view.keys().Read(i, &key) || !view.values().Read(i, &value))
       return false;
 
-    dictionary_value->Set(key, std::move(value));
+    dictionary_value->SetWithoutPathExpansion(key, std::move(value));
   }
   *value_out = std::move(dictionary_value);
   return true;