Add a name to the ProcessThread constructor.

webrtc/modules/utility/source/process_thread_impl.h

Index: webrtc/modules/utility/source/process_thread_impl.h
diff --git a/webrtc/modules/utility/source/process_thread_impl.h b/webrtc/modules/utility/source/process_thread_impl.h
index 1fd2bf3adc56125aec3d4b9f410a79e984db8e11..53b5d591a383e7b4f11848ef3057b13687540824 100644
--- a/webrtc/modules/utility/source/process_thread_impl.h
+++ b/webrtc/modules/utility/source/process_thread_impl.h
@@ -25,7 +25,7 @@ namespace webrtc {
 
 class ProcessThreadImpl : public ProcessThread {
  public:
-  ProcessThreadImpl();
+  explicit ProcessThreadImpl(const char* thread_name);

[tommi, 2015/09/12 09:49:32]

does using |const char*| here and not |const std::string&| mean that we expect
only static strings to be provided as names?  If so, then I think thread_name_
should be of type const char*.  If we want to allow dynamically changing names,
then I'd go with const std::string&.

[stefan-webrtc, 2015/09/14 11:42:53]

I can live with only having static strings for this for now, as I don't see
anywhere we'd like to have dynamic naming.

   ~ProcessThreadImpl() override;
 
   void Start() override;
@@ -76,6 +76,7 @@ class ProcessThreadImpl : public ProcessThread {
   // TODO(tommi): Support delayed tasks.
   std::queue<ProcessTask*> queue_;
   bool stop_;
+  std::string thread_name_;

[tommi, 2015/09/12 09:49:32]

if we stick with std::string, then I think we should make this const
std::string.

[stefan-webrtc, 2015/09/14 11:42:53]

Done.

 };
 
 }  // namespace webrtc