Add multiplexing of message pipes in the new EDK.

mojo/edk/system/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/test_utils.h"
 
 #include <limits>
 
 #include "base/logging.h"
 #include "base/test/test_timeouts.h"
@@ skipping 51 matching lines @@
   start_time_ = base::TimeTicks::Now();
 }
 
 MojoDeadline Stopwatch::Elapsed() {
   int64_t result = (base::TimeTicks::Now() - start_time_).InMicroseconds();
   // |DCHECK_GE|, not |CHECK_GE|, since this may be performance-important.
   DCHECK_GE(result, 0);
   return static_cast<MojoDeadline>(result);
 }
 
-
-MojoSystemTest::MojoSystemTest()
-    : test_io_thread_(base::TestIOThread::kAutoStart),
-      ipc_support_(test_io_thread_.task_runner()) {
-}
-
-MojoSystemTest::~MojoSystemTest() {
-}
-
 }  // namespace test
 }  // namespace edk
 }  // namespace mojo