Plumb the handle signals state out of Waiter::Wait().

mojo/edk/system/waiter_test_utils.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/edk/system/waiter_test_utils.h"
 
 #include <utility>
 
 using mojo::util::RefPtr;
 
 namespace mojo {
 namespace system {
 namespace test {
 
 SimpleWaiterThread::SimpleWaiterThread(MojoResult* result, uint64_t* context)
     : result_(result), context_(context) {
   waiter_.Init();
   *result_ = 5420734;            // Totally invalid result.
   *context_ = 2341532489023ULL;  // "Random".
 }
 
 SimpleWaiterThread::~SimpleWaiterThread() {
   Join();
 }
 
 void SimpleWaiterThread::Run() {
-  *result_ = waiter_.Wait(MOJO_DEADLINE_INDEFINITE, context_);
+  *result_ = waiter_.Wait(MOJO_DEADLINE_INDEFINITE, context_, nullptr);
 }
 
 WaiterThread::WaiterThread(RefPtr<Dispatcher>&& dispatcher,
                            MojoHandleSignals handle_signals,
                            MojoDeadline deadline,
                            uint64_t context,
                            bool* did_wait_out,
                            MojoResult* result_out,
                            uint64_t* context_out,
                            HandleSignalsState* signals_state_out)
@@ skipping 19 matching lines @@
 
 void WaiterThread::Run() {
   waiter_.Init();
 
   *result_out_ = dispatcher_->AddAwakable(&waiter_, handle_signals_, context_,
                                           signals_state_out_);
   if (*result_out_ != MOJO_RESULT_OK)
     return;
 
   *did_wait_out_ = true;
-  *result_out_ = waiter_.Wait(deadline_, context_out_);
+  *result_out_ = waiter_.Wait(deadline_, context_out_, nullptr);
   dispatcher_->RemoveAwakable(&waiter_, signals_state_out_);
 }
 
 }  // namespace test
 }  // namespace system
 }  // namespace mojo