[chromedriver] Allow commands to be async.

chrome/test/chromedriver/synchronized_map.h

-// 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.
-
-#ifndef CHROME_TEST_CHROMEDRIVER_SYNCHRONIZED_MAP_H_
-#define CHROME_TEST_CHROMEDRIVER_SYNCHRONIZED_MAP_H_
-
-#include <map>
-#include <utility>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/synchronization/lock.h"
-
-template <typename K, typename V>
-class SynchronizedMap {
- public:
-  SynchronizedMap();
-  ~SynchronizedMap();
-
-  void Set(const K& key, const V& value);
-  bool Get(const K& key, V* value) const;
-  bool Has(const K& key) const;
-  bool Remove(const K& key);
-
-  void GetKeys(std::vector<K>* keys) const;
-
- private:
-  typedef std::map<K, V> Map;
-  Map map_;
-  mutable base::Lock map_lock_;
-
-  DISALLOW_COPY_AND_ASSIGN(SynchronizedMap);
-};
-
-template <typename K, typename V>
-SynchronizedMap<K, V>::SynchronizedMap() {}
-
-template <typename K, typename V>
-SynchronizedMap<K, V>::~SynchronizedMap() {}
-
-template <typename K, typename V>
-void SynchronizedMap<K, V>::Set(const K& key, const V& value) {
-  base::AutoLock lock(map_lock_);
-  typename Map::iterator iter = map_.find(key);
-  if (iter != map_.end())
-    map_.erase(iter);
-  map_.insert(std::make_pair(key, value));
-}
-
-template <typename K, typename V>
-bool SynchronizedMap<K, V>::Get(const K& key, V* value) const {
-  base::AutoLock lock(map_lock_);
-  typename Map::const_iterator iter = map_.find(key);
-  if (iter == map_.end())
-    return false;
-  *value = iter->second;
-  return true;
-}
-
-template <typename K, typename V>
-bool SynchronizedMap<K, V>::Has(const K& key) const {
-  base::AutoLock lock(map_lock_);
-  return map_.find(key) != map_.end();
-}
-
-template <typename K, typename V>
-bool SynchronizedMap<K, V>::Remove(const K& key) {
-  base::AutoLock lock(map_lock_);
-  typename Map::iterator iter = map_.find(key);
-  if (iter == map_.end())
-    return false;
-  map_.erase(iter);
-  return true;
-}
-
-template <typename K, typename V>
-void SynchronizedMap<K, V>::GetKeys(std::vector<K>* keys) const {
-  keys->clear();
-  base::AutoLock lock(map_lock_);
-  typename Map::const_iterator iter;
-  for (iter = map_.begin(); iter != map_.end(); iter++)
-    keys->push_back(iter->first);
-}
-
-#endif  // CHROME_TEST_CHROMEDRIVER_SYNCHRONIZED_MAP_H_