Move ThreadWrapper to ProcessThread in base.

webrtc/test/fake_audio_device.cc

Index: webrtc/test/fake_audio_device.cc
diff --git a/webrtc/test/fake_audio_device.cc b/webrtc/test/fake_audio_device.cc
index 440880403799a14cd71d8bc87a26996c22d50ffa..4eee6606a3e00ddb82769064c09697eb383ea8ce 100644
--- a/webrtc/test/fake_audio_device.cc
+++ b/webrtc/test/fake_audio_device.cc
@@ -13,11 +13,11 @@
 #include <algorithm>
 
 #include "testing/gtest/include/gtest/gtest.h"
+#include "webrtc/base/platform_thread.h"
 #include "webrtc/modules/media_file/media_file_utility.h"
 #include "webrtc/system_wrappers/include/clock.h"
 #include "webrtc/system_wrappers/include/event_wrapper.h"
 #include "webrtc/system_wrappers/include/file_wrapper.h"
-#include "webrtc/system_wrappers/include/thread_wrapper.h"
 
 namespace webrtc {
 namespace test {
@@ -53,8 +53,8 @@ int32_t FakeAudioDevice::Init() {
 
   if (!tick_->StartTimer(true, 10))
     return -1;
-  thread_ = ThreadWrapper::CreateThread(FakeAudioDevice::Run, this,
-                                        "FakeAudioDevice");
+  thread_ = PlatformThread::CreateThread(FakeAudioDevice::Run, this,
+                                         "FakeAudioDevice");
   if (thread_.get() == NULL)
     return -1;
   if (!thread_->Start()) {