Provide callback to create mojo AndroidOverlays to AVDA.

content/gpu/gpu_child_thread.cc

Index: content/gpu/gpu_child_thread.cc
diff --git a/content/gpu/gpu_child_thread.cc b/content/gpu/gpu_child_thread.cc
index 91f1fcb20fe7326accccda5603b5528b5a1e67f9..268f695bcb2c9307c516e4b697f8701e463e005d 100644
--- a/content/gpu/gpu_child_thread.cc
+++ b/content/gpu/gpu_child_thread.cc
@@ -35,6 +35,7 @@
 
 #if defined(OS_ANDROID)
 #include "media/base/android/media_drm_bridge_client.h"
+#include "media/mojo/clients/mojo_android_overlay.h"
 #endif
 
 namespace content {
@@ -283,6 +284,11 @@ void GpuChildThread::CreateGpuService(
   service_factory_.reset(new GpuServiceFactory(
       gpu_service_->media_gpu_channel_manager()->AsWeakPtr()));
 
+#if defined(OS_ANDROID)
+  gpu_service_->media_gpu_channel_manager()->SetOverlayFactory(
+      base::Bind(&GpuChildThread::OverlayFactory, base::Unretained(this)));
+#endif
+
   if (GetContentClient()->gpu())  // NULL in tests.
     GetContentClient()->gpu()->GpuServiceInitialized(gpu_preferences);
 
@@ -304,4 +310,16 @@ void GpuChildThread::BindServiceFactoryRequest(
                                        std::move(request));
 }
 
+#if defined(OS_ANDROID)
+std::unique_ptr<media::AndroidOverlay> GpuChildThread::OverlayFactory(
+    const base::UnguessableToken& routing_token,
+    media::AndroidOverlayConfig config) {
+  media::mojom::AndroidOverlayProviderPtr provider_ptr;
+  ChildThread::Get()->GetConnector()->BindInterface(
+      content::mojom::kBrowserServiceName, &provider_ptr);
+  return base::MakeUnique<media::MojoAndroidOverlay>(
+      std::move(provider_ptr), std::move(config), routing_token);
+}
+#endif
+
 }  // namespace content