Move ThreadWrapper to ProcessThread in base.

webrtc/test/fake_audio_device.h

Index: webrtc/test/fake_audio_device.h
diff --git a/webrtc/test/fake_audio_device.h b/webrtc/test/fake_audio_device.h
index bdc672892cf4e5aa8f81faf664c6bcb4a0ac6ff5..9733da36bb28f00249fdfcdc0ee1ddab24b7bae0 100644
--- a/webrtc/test/fake_audio_device.h
+++ b/webrtc/test/fake_audio_device.h
@@ -23,7 +23,7 @@ class Clock;
 class EventTimerWrapper;
 class FileWrapper;
 class ModuleFileUtility;
-class ThreadWrapper;
+class PlatformThread;
 
 namespace test {
 
@@ -59,7 +59,7 @@ class FakeAudioDevice : public FakeAudioDeviceModule {
   Clock* clock_;
   rtc::scoped_ptr<EventTimerWrapper> tick_;
   mutable rtc::CriticalSection lock_;
-  rtc::scoped_ptr<ThreadWrapper> thread_;
+  rtc::scoped_ptr<PlatformThread> thread_;
   rtc::scoped_ptr<ModuleFileUtility> file_utility_;
   rtc::scoped_ptr<FileWrapper> input_stream_;
 };