Use ChannelMojo in ppapi_unittests.

ppapi/proxy/ppapi_proxy_test.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 "ppapi/proxy/ppapi_proxy_test.h"
 
-#include <sstream>
 #include <tuple>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/observer_list.h"
 #include "base/process/process_handle.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 525 matching lines @@
 TwoWayTest::~TwoWayTest() {
   shutdown_event_.Signal();
 }
 
 void TwoWayTest::SetUp() {
   base::Thread::Options options;
   options.message_loop_type = base::MessageLoop::TYPE_IO;
   io_thread_.StartWithOptions(options);
   plugin_thread_.Start();
 
-  // Construct the IPC handle name using the process ID so we can safely run
-  // multiple |TwoWayTest|s concurrently.
-  std::ostringstream handle_name;
-  handle_name << "TwoWayTestChannel" << base::GetCurrentProcId();
-  IPC::ChannelHandle handle(handle_name.str());
+  IPC::ChannelHandle local_handle, remote_handle;
+  IPC::Channel::GenerateMojoChannelHandlePair("TwoWayTestChannel",
+                                              &local_handle, &remote_handle);
   base::WaitableEvent remote_harness_set_up(
       base::WaitableEvent::ResetPolicy::MANUAL,
       base::WaitableEvent::InitialState::NOT_SIGNALED);
   plugin_thread_.task_runner()->PostTask(
-      FROM_HERE, base::Bind(&SetUpRemoteHarness, remote_harness_, handle,
+      FROM_HERE, base::Bind(&SetUpRemoteHarness, remote_harness_, remote_handle,
                             base::RetainedRef(io_thread_.task_runner()),
                             &shutdown_event_, &remote_harness_set_up));
   remote_harness_set_up.Wait();
   local_harness_->SetUpHarnessWithChannel(
-      handle, io_thread_.task_runner().get(), &shutdown_event_,
+      local_handle, io_thread_.task_runner().get(), &shutdown_event_,
       true);  // is_client
 }
 
 void TwoWayTest::TearDown() {
   base::WaitableEvent remote_harness_torn_down(
       base::WaitableEvent::ResetPolicy::MANUAL,
       base::WaitableEvent::InitialState::NOT_SIGNALED);
   plugin_thread_.task_runner()->PostTask(
       FROM_HERE, base::Bind(&TearDownRemoteHarness, remote_harness_,
                             &remote_harness_torn_down));
   remote_harness_torn_down.Wait();
 
   local_harness_->TearDownHarness();
 
   io_thread_.Stop();
 }
 
 void TwoWayTest::PostTaskOnRemoteHarness(const base::Closure& task) {
   base::WaitableEvent task_complete(
       base::WaitableEvent::ResetPolicy::MANUAL,
       base::WaitableEvent::InitialState::NOT_SIGNALED);
   plugin_thread_.task_runner()->PostTask(
       FROM_HERE, base::Bind(&RunTaskOnRemoteHarness, task, &task_complete));
   task_complete.Wait();
 }
 
 
 }  // namespace proxy
 }  // namespace ppapi