Start of thread pool implementation

runtime/bin/thread_pool_win.cc

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#include "bin/thread_pool.h"
+
+TaskQueue::TaskQueue() : head_(NULL), tail_(NULL) {
+  UNIMPLEMENTED();
+}
+
+
+void TaskQueue::Insert(TaskQueueEntry* entry) {
+  UNIMPLEMENTED();
+}
+
+
+TaskQueueEntry* TaskQueue::Remove() {
+  UNIMPLEMENTED();
+  return NULL;
+}
+
+
+void ThreadPool::Start() {
+  UNIMPLEMENTED();
+}