Create a PPAPI host for new resource message routing.

ppapi/shared_impl/resource.cc

Index: ppapi/shared_impl/resource.cc
diff --git a/ppapi/shared_impl/resource.cc b/ppapi/shared_impl/resource.cc
index b8dd315d3ec64337995dd83fcb68646d042dfd7b..c96bc2128c1c5fa04e77d897b21754031e4720bb 100644
--- a/ppapi/shared_impl/resource.cc
+++ b/ppapi/shared_impl/resource.cc
@@ -56,6 +56,12 @@ void Resource::InstanceWasDeleted() {
   host_resource_ = HostResource();
 }
 
+void Resource::OnReplyReceived(int sequence,
+                               int32_t result,
+                               const IPC::Message& msg) {
+  NOTREACHED();
+}
+
 void Resource::Log(PP_LogLevel_Dev level, const std::string& message) {
   PpapiGlobals::Get()->LogWithSource(pp_instance(), level, std::string(),
                                      message);