- Add a SetPriority method to ThreadWrapper
- Remove 'priority' from CreateThread and related member variables from implementations
- Make supplying a name for threads, non-optional

BUG=
R=magjed@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/44729004

Cr-Commit-Position: refs/heads/master@{#8810}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8810 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/system_wrappers/source/thread_posix.h b/webrtc/system_wrappers/source/thread_posix.h
index ccc52b6..c726e48 100644
--- a/webrtc/system_wrappers/source/thread_posix.h
+++ b/webrtc/system_wrappers/source/thread_posix.h
@@ -25,14 +25,15 @@
 
 class ThreadPosix : public ThreadWrapper {
  public:
-  ThreadPosix(ThreadRunFunction func, void* obj, ThreadPriority prio,
-              const char* thread_name);
+  ThreadPosix(ThreadRunFunction func, void* obj, const char* thread_name);
   ~ThreadPosix() override;
 
   // From ThreadWrapper.
   bool Start() override;
   bool Stop() override;
 
+  bool SetPriority(ThreadPriority priority) override;
+
  private:
   static void* StartThread(void* param);
 
@@ -41,7 +42,6 @@
   rtc::ThreadChecker thread_checker_;
   ThreadRunFunction const run_function_;
   void* const obj_;
-  ThreadPriority prio_;
   rtc::Event stop_event_;
   const std::string name_;