Remove base::ScopedPtrHashMap from media/.

media/gpu/ipc/service/media_gpu_channel_manager.cc

 // Copyright 2016 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/gpu/ipc/service/media_gpu_channel_manager.h"
 
 #include <memory>
 #include <utility>
 
 #include "gpu/ipc/service/gpu_channel.h"
@@ skipping 11 matching lines @@
     : channel_manager_(channel_manager) {}
 
 MediaGpuChannelManager::~MediaGpuChannelManager() {}
 
 void MediaGpuChannelManager::AddChannel(int32_t client_id) {
   gpu::GpuChannel* gpu_channel = channel_manager_->LookupChannel(client_id);
   DCHECK(gpu_channel);
   std::unique_ptr<MediaGpuChannel> media_gpu_channel(
       new MediaGpuChannel(gpu_channel));
   gpu_channel->SetUnhandledMessageListener(media_gpu_channel.get());
-  media_gpu_channels_.set(client_id, std::move(media_gpu_channel));
+  media_gpu_channels_[client_id] = std::move(media_gpu_channel);
 }
 
 void MediaGpuChannelManager::RemoveChannel(int32_t client_id) {
   media_gpu_channels_.erase(client_id);
 }
 
 void MediaGpuChannelManager::DestroyAllChannels() {
   media_gpu_channels_.clear();
 }
 
 }  // namespace media