Add full SetThreadPriority support to Windows.

base/threading/platform_thread_freebsd.cc

Index: base/threading/platform_thread_freebsd.cc
diff --git a/base/threading/platform_thread_freebsd.cc b/base/threading/platform_thread_freebsd.cc
index a163f650443d08f1602ff295e8c985dab7c7ddd2..ee523db8db0c33599397dc98c859e6c939420d29 100644
--- a/base/threading/platform_thread_freebsd.cc
+++ b/base/threading/platform_thread_freebsd.cc
@@ -36,8 +36,8 @@ const ThreadPriorityToNiceValuePair kThreadPriorityToNiceValueMap[4] = {
   { kThreadPriority_Display, -6 },
 }
 
-bool HandleSetThreadPriorityForPlatform(PlatformThreadHandle handle,
-                                        ThreadPriority priority) {
+bool SetThreadPriorityForPlatform(PlatformThreadHandle handle,
+                                  ThreadPriority priority) {
 #if !defined(OS_NACL)
   return priority == kThreadPriority_RealtimeAudio &&
          pthread_setschedparam(pthread_self(), SCHED_RR, &kRealTimePrio) == 0;
@@ -46,6 +46,23 @@ bool HandleSetThreadPriorityForPlatform(PlatformThreadHandle handle,
 #endif
 }
 
+bool GetThreadPriorityForPlatform(PlatformThreadHandle handle,
+                                  ThreadPriority* priority) {
+#if !defined(OS_NACL)
+  // Mirrors SetThreadPriorityForPlatform()'s implementation.
+  int maybe_sched_rr = 0;
+  struct sched_param maybe_realtime_prio = {0};
+  if (pthread_getschedparam(pthread_self(), &maybe_sched_rr,

[rvargas (doing something else), 2015/03/31 19:27:10]

Don't see the TODO

[gab, 2015/03/31 20:18:20]

Oops had put it in _linux.cc only...

+                            &maybe_realtime_prio) == 0 &&
+      maybe_sched_rr == SCHED_RR &&
+      maybe_realtime_prio.sched_priority == kRealTimePrio.sched_priority) {
+    *priority = kThreadPriority_RealtimeAudio;
+    return true;
+  }
+#endif
+  return false;
+}
+
 }  // namespace internal
 
 // static