[PPAPI] Added PP_VARTYPE_RESOURCE as a PP_VarType enum value.

ppapi/shared_impl/var_value_conversions.cc

Index: ppapi/shared_impl/var_value_conversions.cc
diff --git a/ppapi/shared_impl/var_value_conversions.cc b/ppapi/shared_impl/var_value_conversions.cc
index 46f316186879610aa6027569219ce669df96d88c..e3a5bddc4f01ee71dcef26c417bbd14484a1e970 100644
--- a/ppapi/shared_impl/var_value_conversions.cc
+++ b/ppapi/shared_impl/var_value_conversions.cc
@@ -131,6 +131,9 @@ bool CreateValueFromVarHelper(const std::set<int64_t>& parent_ids,
       value->reset(binary_value);
       return true;
     }
+    case PP_VARTYPE_RESOURCE: {
+      return false;
+    }
   }
   NOTREACHED();
   return false;