Provide callback to create mojo AndroidOverlays to AVDA.

media/gpu/ipc/service/media_gpu_channel.h

Index: media/gpu/ipc/service/media_gpu_channel.h
diff --git a/media/gpu/ipc/service/media_gpu_channel.h b/media/gpu/ipc/service/media_gpu_channel.h
index 547b26af0428bde292db5950393fe42c656702a2..21343459cbd3168cf4d1a0b6f96b29e258207ce8 100644
--- a/media/gpu/ipc/service/media_gpu_channel.h
+++ b/media/gpu/ipc/service/media_gpu_channel.h
@@ -21,6 +21,10 @@ namespace gpu {
 class GpuChannel;
 }
 
+namespace service_manager {
+class Connector;
+}
+
 namespace media {
 
 class MediaGpuChannelDispatchHelper;
@@ -28,7 +32,9 @@ class MediaGpuChannelDispatchHelper;
 class MediaGpuChannel : public IPC::Listener, public IPC::Sender {
  public:
   MediaGpuChannel(gpu::GpuChannel* channel,
-                  const base::UnguessableToken& channel_token);
+                  const base::UnguessableToken& channel_token,
+                  service_manager::Connector* connector,
+                  const char* browser_service_name);
   ~MediaGpuChannel() override;
 
   // IPC::Sender implementation:
@@ -53,6 +59,8 @@ class MediaGpuChannel : public IPC::Listener, public IPC::Sender {
   gpu::GpuChannel* const channel_;
   base::UnguessableToken channel_token_;
   std::unique_ptr<GpuJpegDecodeAccelerator> jpeg_decoder_;
+  service_manager::Connector* connector_ = nullptr;
+  const char* browser_service_name_ = nullptr;
   DISALLOW_COPY_AND_ASSIGN(MediaGpuChannel);
 };