Add ChannelProxy benchmark to ipc_perftests.

ipc/ipc_test_base.cc

 // Copyright (c) 2012 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 "build/build_config.h"
 
 #include "ipc/ipc_test_base.h"
 
 #include "base/command_line.h"
 #include "base/process/kill.h"
@@ skipping 14 matching lines @@
 IPCTestBase::IPCTestBase()
     : client_process_(base::kNullProcessHandle) {
 }
 
 IPCTestBase::~IPCTestBase() {
 }
 
 void IPCTestBase::SetUp() {
   MultiProcessTest::SetUp();
 
-  // Construct a fresh IO Message loop for the duration of each test.
+  // Construct a fresh Message loop for the duration of each test.
   DCHECK(!message_loop_.get());
   message_loop_.reset(new base::MessageLoopForIO());
 }
 
 void IPCTestBase::TearDown() {
   DCHECK(message_loop_.get());
   message_loop_.reset();
   MultiProcessTest::TearDown();
 }
 
@@ skipping 77 matching lines @@
 bool IPCTestBase::WaitForClientShutdown() {
   DCHECK(client_process_ != base::kNullProcessHandle);
 
   bool rv = base::WaitForSingleProcess(client_process_,
                                        base::TimeDelta::FromSeconds(5));
   base::CloseProcessHandle(client_process_);
   client_process_ = base::kNullProcessHandle;
   return rv;
 }
 
-scoped_refptr<base::TaskRunner> IPCTestBase::io_thread_task_runner() {
+scoped_refptr<base::TaskRunner> IPCTestBase::task_runner() {
   return message_loop_->message_loop_proxy();
 }
+
+void IPCTestBase::set_message_loop(scoped_ptr<base::MessageLoop> loop) {
+  message_loop_ = loop.Pass();
+}