Move global_descriptors to base/posix.

base/global_descriptors_posix.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/global_descriptors_posix.h"
-
-#include <vector>
-#include <utility>
-
-#include "base/logging.h"
-
-namespace base {
-
-// static
-GlobalDescriptors* GlobalDescriptors::GetInstance() {
-  typedef Singleton<base::GlobalDescriptors,
-                    LeakySingletonTraits<base::GlobalDescriptors> >
-      GlobalDescriptorsSingleton;
-  return GlobalDescriptorsSingleton::get();
-}
-
-int GlobalDescriptors::Get(Key key) const {
-  const int ret = MaybeGet(key);
-
-  if (ret == -1)
-    DLOG(FATAL) << "Unknown global descriptor: " << key;
-  return ret;
-}
-
-int GlobalDescriptors::MaybeGet(Key key) const {
-  for (Mapping::const_iterator
-       i = descriptors_.begin(); i != descriptors_.end(); ++i) {
-    if (i->first == key)
-      return i->second;
-  }
-
-  return -1;
-}
-
-void GlobalDescriptors::Set(Key key, int fd) {
-  for (Mapping::iterator
-       i = descriptors_.begin(); i != descriptors_.end(); ++i) {
-    if (i->first == key) {
-      i->second = fd;
-      return;
-    }
-  }
-
-  descriptors_.push_back(std::make_pair(key, fd));
-}
-
-void GlobalDescriptors::Reset(const Mapping& mapping) {
-  descriptors_ = mapping;
-}
-
-GlobalDescriptors::GlobalDescriptors() {}
-
-GlobalDescriptors::~GlobalDescriptors() {}
-
-}  // namespace base