Provide callback to create mojo AndroidOverlays to AVDA.

media/gpu/ipc/service/media_gpu_channel_manager.h

Index: media/gpu/ipc/service/media_gpu_channel_manager.h
diff --git a/media/gpu/ipc/service/media_gpu_channel_manager.h b/media/gpu/ipc/service/media_gpu_channel_manager.h
index 8cc3f2ff4b7a236ebc298622ec0366ff43898620..38a99f7b406ffe72e676725cb4d72892a3618981 100644
--- a/media/gpu/ipc/service/media_gpu_channel_manager.h
+++ b/media/gpu/ipc/service/media_gpu_channel_manager.h
@@ -22,6 +22,10 @@ class GpuChannel;
 class GpuChannelManager;
 }
 
+namespace service_manager {
+class Connector;
+}
+
 namespace media {
 
 class MediaGpuChannel;
@@ -36,6 +40,9 @@ class MediaGpuChannelManager
   void RemoveChannel(int32_t client_id);
   void DestroyAllChannels();
 
+  void SetMojoConnector(service_manager::Connector* connector,
+                        const char* browser_service_name);
+
   // TODO(sandersd): Should we expose the MediaGpuChannel instead?
   gpu::GpuChannel* LookupChannel(const base::UnguessableToken& channel_token);
 
@@ -45,6 +52,8 @@ class MediaGpuChannelManager
       media_gpu_channels_;
   std::map<base::UnguessableToken, int32_t> token_to_channel_;
   std::map<int32_t, base::UnguessableToken> channel_to_token_;
+  service_manager::Connector* connector_ = nullptr;
+  const char* browser_service_name_ = nullptr;
   DISALLOW_COPY_AND_ASSIGN(MediaGpuChannelManager);
 };