Update PlatformThread to support a couple of new properties.

webrtc/base/platform_thread.h

Index: webrtc/base/platform_thread.h
diff --git a/webrtc/base/platform_thread.h b/webrtc/base/platform_thread.h
index 53465e4b17a2f06334cefc17d91add8bd23c9019..8c2161baa891c4018c8ca3b18995349a25e9752f 100644
--- a/webrtc/base/platform_thread.h
+++ b/webrtc/base/platform_thread.h
@@ -59,18 +59,30 @@ class PlatformThread {
   PlatformThread(ThreadRunFunction func, void* obj, const char* thread_name);
   virtual ~PlatformThread();
 
+  const std::string& name() const { return name_; }
+
   // Spawns a thread and tries to set thread priority according to the priority
   // from when CreateThread was called.
   void Start();
 
   bool IsRunning() const;
 
+  // Returns an identifier for the worker thread that can be used to do
+  // thread checks.
+  PlatformThreadRef GetThreadRef() const;
+
   // Stops (joins) the spawned thread.
   void Stop();
 
   // Set the priority of the thread. Must be called when thread is running.
   bool SetPriority(ThreadPriority priority);
 
+ protected:
+#if defined(WEBRTC_WIN)
+  // Exposed to derived classes to allow for special cases specific to Windows.
+  bool QueueAPC(PAPCFUNC apc_function, ULONG_PTR data);
+#endif
+
  private:
   void Run();
 
@@ -85,6 +97,7 @@ class PlatformThread {
 
   bool stop_;
   HANDLE thread_;
+  DWORD thread_id_;
 #else
   static void* StartThread(void* param);