Add ChannelProxy benchmark to ipc_perftests.

mojo/system/test_utils.cc

Index: mojo/system/test_utils.cc
diff --git a/mojo/system/test_utils.cc b/mojo/system/test_utils.cc
index d4e8d28ea0d786ba7852a90817bd7a95d100aa81..d0e425afc94045823e2a9d50b885c496b028c534 100644
--- a/mojo/system/test_utils.cc
+++ b/mojo/system/test_utils.cc
@@ -49,47 +49,6 @@ base::TimeDelta EpsilonTimeout() {
 #endif
 }
 
-// TestIOThread ----------------------------------------------------------------
-
-TestIOThread::TestIOThread(Mode mode)
-    : io_thread_("test_io_thread"), io_thread_started_(false) {
-  switch (mode) {
-    case kAutoStart:
-      Start();
-      return;
-    case kManualStart:
-      return;
-  }
-  CHECK(false) << "Invalid mode";
-}
-
-TestIOThread::~TestIOThread() {
-  Stop();
-}
-
-void TestIOThread::Start() {
-  CHECK(!io_thread_started_);
-  io_thread_started_ = true;
-  CHECK(io_thread_.StartWithOptions(
-      base::Thread::Options(base::MessageLoop::TYPE_IO, 0)));
-}
-
-void TestIOThread::Stop() {
-  // Note: It's okay to call |Stop()| even if the thread isn't running.
-  io_thread_.Stop();
-  io_thread_started_ = false;
-}
-
-void TestIOThread::PostTask(const tracked_objects::Location& from_here,
-                            const base::Closure& task) {
-  task_runner()->PostTask(from_here, task);
-}
-
-void TestIOThread::PostTaskAndWait(const tracked_objects::Location& from_here,
-                                   const base::Closure& task) {
-  ::mojo::system::test::PostTaskAndWait(task_runner(), from_here, task);
-}
-
 }  // namespace test
 }  // namespace system
 }  // namespace mojo