Use platform implementation of Monitor in thread pool

runtime/bin/thread_pool.h

 // 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.
 
 #ifndef BIN_THREAD_POOL_H_
 #define BIN_THREAD_POOL_H_
 
 #include "bin/builtin.h"
 #include "platform/globals.h"
+#include "platform/thread.h"
 
 // Declare the OS-specific types ahead of defining the generic classes.
 #if defined(TARGET_OS_LINUX)
 #include "bin/thread_pool_linux.h"
 #elif defined(TARGET_OS_MACOS)
 #include "bin/thread_pool_macos.h"
 #elif defined(TARGET_OS_WINDOWS)
 #include "bin/thread_pool_win.h"
 #else
 #error Unknown target os.
@@ skipping 16 matching lines @@
   Task task_;
   TaskQueueEntry* next_;
 };
 
 
 // The task queue is a single linked list. Link direction is from tail
 // to head. New entried are inserted at the tail and entries are
 // removed from the head.
 class TaskQueue {
  public:
-  TaskQueue();
+  TaskQueue() : terminate_(false), head_(NULL), tail_(NULL) {}
 
   void Insert(TaskQueueEntry* task);
   TaskQueueEntry* Remove();
   void Shutdown();
 
  private:
   bool terminate_;
   TaskQueueEntry* head_;
   TaskQueueEntry* tail_;
-  TaskQueueData data_;
+  dart::Monitor monitor_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskQueue);
 };
 
 
 class ThreadPool {
  public:
   typedef void* (*TaskHandler)(void* args);
 
   ThreadPool(TaskHandler task_handler, int initial_size = 4)
@@ skipping 16 matching lines @@
   // obtain it for updating terminate_.
   bool terminate_;
   int size_;  // Number of threads.
   TaskHandler task_handler_;
   ThreadPoolData data_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadPool);
 };
 
 #endif  // BIN_THREAD_POOL_H_