media: Use stl utilities from the base namespace

media/cdm/player_tracker_impl.cc

 // Copyright 2014 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 "media/cdm/player_tracker_impl.h"
 
 #include <utility>
 
 #include "base/stl_util.h"
 
@@ skipping 12 matching lines @@
 
 PlayerTrackerImpl::PlayerTrackerImpl() : next_registration_id_(1) {
 }
 
 PlayerTrackerImpl::~PlayerTrackerImpl() {}
 
 int PlayerTrackerImpl::RegisterPlayer(const base::Closure& new_key_cb,
                                       const base::Closure& cdm_unset_cb) {
   base::AutoLock lock(lock_);
   int registration_id = next_registration_id_++;
-  DCHECK(!ContainsKey(player_callbacks_map_, registration_id));
+  DCHECK(!base::ContainsKey(player_callbacks_map_, registration_id));
   player_callbacks_map_.insert(std::make_pair(
       registration_id, PlayerCallbacks(new_key_cb, cdm_unset_cb)));
   return registration_id;
 }
 
 void PlayerTrackerImpl::UnregisterPlayer(int registration_id) {
   base::AutoLock lock(lock_);
-  DCHECK(ContainsKey(player_callbacks_map_, registration_id))
+  DCHECK(base::ContainsKey(player_callbacks_map_, registration_id))
       << registration_id;
   player_callbacks_map_.erase(registration_id);
 }
 
 void PlayerTrackerImpl::NotifyNewKey() {
   std::vector<base::Closure> new_key_callbacks;
 
   {
     base::AutoLock lock(lock_);
     for (const auto& entry : player_callbacks_map_)
@@ skipping 11 matching lines @@
     base::AutoLock lock(lock_);
     for (const auto& entry : player_callbacks_map_)
       cdm_unset_callbacks.push_back(entry.second.cdm_unset_cb);
   }
 
   for (const auto& cb : cdm_unset_callbacks)
     cb.Run();
 }
 
 }  // namespace media