make debug mode ~20% faster on linux

base/threading/platform_thread_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/threading/platform_thread.h"
 
 #include "base/debug/alias.h"
 #include "base/debug/profiler.h"
 #include "base/logging.h"
 #include "base/threading/thread_id_name_manager.h"
@@ skipping 112 matching lines @@
 }
 
 }  // namespace
 
 // static
 PlatformThreadId PlatformThread::CurrentId() {
   return GetCurrentThreadId();
 }
 
 // static
+PlatformThreadRef PlatformThread::CurrentRef() {
+  return PlatformThreadRef(GetCurrentThreadId());
+}
+
+// static
 PlatformThreadHandle PlatformThread::CurrentHandle() {
   NOTIMPLEMENTED(); // See OpenThread()
   return PlatformThreadHandle();
 }
 
 // static
 void PlatformThread::YieldCurrentThread() {
   ::Sleep(0);
 }
 
@@ skipping 94 matching lines @@
     case kThreadPriority_RealtimeAudio:
       ::SetThreadPriority(handle.handle_, THREAD_PRIORITY_TIME_CRITICAL);
       break;
     default:
       NOTREACHED() << "Unknown priority.";
       break;
   }
 }
 
 }  // namespace base