- 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_win.cc b/webrtc/system_wrappers/source/thread_win.cc
index 0c1a8f2..aa03b91 100644
--- a/webrtc/system_wrappers/source/thread_win.cc
+++ b/webrtc/system_wrappers/source/thread_win.cc
@@ -55,10 +55,9 @@
 }
 
 ThreadWindows::ThreadWindows(ThreadRunFunction func, void* obj,
-                             ThreadPriority prio, const char* thread_name)
+                             const char* thread_name)
     : run_function_(func),
       obj_(obj),
-      prio_(prio),
       stop_(false),
       thread_(NULL),
       name_(thread_name ? thread_name : "webrtc") {
@@ -98,28 +97,6 @@
     return false;
   }
 
-  if (prio_ != kNormalPriority) {
-    int priority = THREAD_PRIORITY_NORMAL;
-    switch (prio_) {
-      case kLowPriority:
-        priority = THREAD_PRIORITY_BELOW_NORMAL;
-        break;
-      case kHighPriority:
-        priority = THREAD_PRIORITY_ABOVE_NORMAL;
-        break;
-      case kHighestPriority:
-        priority = THREAD_PRIORITY_HIGHEST;
-        break;
-      case kRealtimePriority:
-        priority = THREAD_PRIORITY_TIME_CRITICAL;
-        break;
-      default:
-        break;
-    }
-
-    SetThreadPriority(thread_, priority);
-  }
-
   return true;
 }
 
@@ -136,6 +113,11 @@
   return true;
 }
 
+bool ThreadWindows::SetPriority(ThreadPriority priority) {
+  DCHECK(main_thread_.CalledOnValidThread());
+  return thread_ && SetThreadPriority(thread_, priority);
+}
+
 void ThreadWindows::Run() {
   if (!name_.empty())
     SetThreadName(static_cast<DWORD>(-1), name_.c_str());