Provide callback to create mojo AndroidOverlays to AVDA.

media/gpu/ipc/service/media_gpu_channel_manager.cc

Index: media/gpu/ipc/service/media_gpu_channel_manager.cc
diff --git a/media/gpu/ipc/service/media_gpu_channel_manager.cc b/media/gpu/ipc/service/media_gpu_channel_manager.cc
index 0a7e7c812e94c80a16e861c9743cfbea256743a9..6b6d9777f5b151a0186df51c04094292e08e6a7e 100644
--- a/media/gpu/ipc/service/media_gpu_channel_manager.cc
+++ b/media/gpu/ipc/service/media_gpu_channel_manager.cc
@@ -27,8 +27,8 @@ void MediaGpuChannelManager::AddChannel(int32_t client_id) {
   gpu::GpuChannel* gpu_channel = channel_manager_->LookupChannel(client_id);
   DCHECK(gpu_channel);
   base::UnguessableToken channel_token = base::UnguessableToken::Create();
-  std::unique_ptr<MediaGpuChannel> media_gpu_channel(
-      new MediaGpuChannel(gpu_channel, channel_token));
+  std::unique_ptr<MediaGpuChannel> media_gpu_channel(new MediaGpuChannel(
+      gpu_channel, channel_token, connector_, browser_service_name_));
   gpu_channel->SetUnhandledMessageListener(media_gpu_channel.get());
   media_gpu_channels_[client_id] = std::move(media_gpu_channel);
   channel_to_token_[client_id] = channel_token;
@@ -58,4 +58,11 @@ gpu::GpuChannel* MediaGpuChannelManager::LookupChannel(
   return channel_manager_->LookupChannel(it->second);
 }
 
+void MediaGpuChannelManager::SetMojoConnector(
+    service_manager::Connector* connector,
+    const char* browser_service_name) {
+  connector_ = connector;
+  browser_service_name_ = browser_service_name;
+}
+
 }  // namespace media