Fetch the surface from GpuSurfaceTracker for mojo AndroidOverlay.

media/mojo/clients/mojo_android_overlay.cc

 // Copyright 2017 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/mojo/clients/mojo_android_overlay.h"
 
+#include "gpu/ipc/common/gpu_surface_lookup.h"
 #include "services/service_manager/public/cpp/connect.h"
 #include "services/service_manager/public/interfaces/interface_provider.mojom.h"
 
 namespace media {
 
 MojoAndroidOverlay::MojoAndroidOverlay(
     service_manager::mojom::InterfaceProvider* interface_provider,
     AndroidOverlayConfig config,
     const base::UnguessableToken& routing_token)
     : interface_provider_(interface_provider), config_(std::move(config)) {
@@ skipping 31 matching lines @@
 
   overlay_ptr_->ScheduleLayout(rect);
 }
 
 const base::android::JavaRef<jobject>& MojoAndroidOverlay::GetJavaSurface()
     const {
   return surface_.j_surface();
 }
 
 void MojoAndroidOverlay::OnSurfaceReady(uint64_t surface_key) {
-  // TODO(liberato): ask binder for the surface here, and fill in |surface_|.
   received_surface_ = true;
+
+  // Get the surface and notify our client.
+  surface_ =
+      gpu::GpuSurfaceLookup::GetInstance()->AcquireJavaSurface(surface_key);
+
+  // If no surface was returned, then fail instead.
+  if (surface_.IsEmpty()) {
+    config_.is_failed(this);
+    // |this| may be deleted.
+    return;
+  }
+
   config_.is_ready(this);
 }
 
 void MojoAndroidOverlay::OnDestroyed() {
   // Note that |overlay_ptr_| might not be bound yet, or we might not have ever
   // gotten a surface.  Regardless, the overlay cannot be used.
 
   if (!received_surface_)
     config_.is_failed(this);
   else
     config_.is_destroyed(this);
 
   // Note: we do not delete |overlay_ptr_| here.  Our client must delete us to
   // signal that we should do that, since it still might be in use.
 }
 
 }  // namespace media