Register MediaPlayerRenderer service

media/mojo/clients/mojo_renderer_factory.cc

 // Copyright 2014 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_renderer_factory.h"
 
 #include "base/single_thread_task_runner.h"
 #include "media/mojo/clients/mojo_renderer.h"
 #include "media/renderers/video_overlay_factory.h"
 #include "services/shell/public/cpp/connect.h"
 #include "services/shell/public/interfaces/interface_provider.mojom.h"
 
 namespace media {
 
 MojoRendererFactory::MojoRendererFactory(
     const GetGpuFactoriesCB& get_gpu_factories_cb,
     shell::mojom::InterfaceProvider* interface_provider)
     : get_gpu_factories_cb_(get_gpu_factories_cb),
       interface_provider_(interface_provider) {
-  DCHECK(!get_gpu_factories_cb_.is_null());
   DCHECK(interface_provider_);
 }
 
 MojoRendererFactory::~MojoRendererFactory() {}
 
 std::unique_ptr<Renderer> MojoRendererFactory::CreateRenderer(
     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
     const scoped_refptr<base::TaskRunner>& /* worker_task_runner */,
     AudioRendererSink* /* audio_renderer_sink */,
     VideoRendererSink* video_renderer_sink,
     const RequestSurfaceCB& /* request_surface_cb */) {
-  std::unique_ptr<VideoOverlayFactory> overlay_factory(
-      new VideoOverlayFactory(get_gpu_factories_cb_.Run()));
+  std::unique_ptr<VideoOverlayFactory> overlay_factory;
+
+  // |get_gpu_factories_cb_| can be null in the HLS/MediaPlayerRenderer case,
+  // when we do not need to create video overlays.
+  if (!get_gpu_factories_cb_.is_null()) {
+    overlay_factory =
+        base::MakeUnique<VideoOverlayFactory>(get_gpu_factories_cb_.Run());
+  }
 
   mojom::RendererPtr renderer_ptr;
   shell::GetInterface<mojom::Renderer>(interface_provider_, &renderer_ptr);
 
   return std::unique_ptr<Renderer>(
       new MojoRenderer(media_task_runner, std::move(overlay_factory),
                        video_renderer_sink, std::move(renderer_ptr)));
 }
 
 }  // namespace media