Clean up PlatformThread.

webrtc/modules/audio_device/linux/audio_device_alsa_linux.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 167 matching lines @@
     static bool RecThreadFunc(void*);
     static bool PlayThreadFunc(void*);
     bool RecThreadProcess();
     bool PlayThreadProcess();
 
 private:
     AudioDeviceBuffer* _ptrAudioBuffer;
 
     CriticalSectionWrapper& _critSect;
 
-    rtc::scoped_ptr<PlatformThread> _ptrThreadRec;
-    rtc::scoped_ptr<PlatformThread> _ptrThreadPlay;
+    // TODO(pbos): Make plain members and start/stop instead of resetting these
+    // pointers. A thread can be reused.
+    rtc::scoped_ptr<rtc::PlatformThread> _ptrThreadRec;
+    rtc::scoped_ptr<rtc::PlatformThread> _ptrThreadPlay;
 
     int32_t _id;
 
     AudioMixerManagerLinuxALSA _mixerManager;
 
     uint16_t _inputDeviceIndex;
     uint16_t _outputDeviceIndex;
     bool _inputDeviceIsSpecified;
     bool _outputDeviceIsSpecified;
 
@@ skipping 43 matching lines @@
 
     char _oldKeyState[32];
 #if defined(USE_X11)
     Display* _XDisplay;
 #endif
 };
 
 }
 
 #endif  // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_DEVICE_ALSA_LINUX_H_