Convert network hints to Mojo

components/network_hints/common/network_hints_param_traits.cc

Index: components/network_hints/common/network_hints_param_traits.cc
diff --git a/components/network_hints/common/network_hints_messages.cc b/components/network_hints/common/network_hints_param_traits.cc
similarity index 83%
rename from components/network_hints/common/network_hints_messages.cc
rename to components/network_hints/common/network_hints_param_traits.cc
index 27d035d1ed44e63c3a079acd3898461ebb0d4fb0..45eb6b295ec3681bf16807024414ddcedcc4b6df 100644
--- a/components/network_hints/common/network_hints_messages.cc
+++ b/components/network_hints/common/network_hints_param_traits.cc
@@ -2,13 +2,18 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/network_hints/common/network_hints_messages.h"
+#include "components/network_hints/common/network_hints_param_traits.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "components/network_hints/common/network_hints_common.h"
 
 namespace IPC {
 
+void ParamTraits<network_hints::LookupRequest>::GetSize(base::PickleSizer* s,
+                                                        const param_type& p) {
+  IPC::GetParamSize(s, p.hostname_list);
+}
+
 void ParamTraits<network_hints::LookupRequest>::Write(
     base::Pickle* m,
     const network_hints::LookupRequest& request) {