media: Add unittest for MojoRenderer{Impl|Service}

media/mojo/clients/mojo_renderer_impl.h

 // 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.
 
 #ifndef MEDIA_MOJO_CLIENTS_MOJO_RENDERER_IMPL_H_
 #define MEDIA_MOJO_CLIENTS_MOJO_RENDERER_IMPL_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 55 matching lines @@
   void OnVideoOpacityChange(bool opaque) override;
 
   // Binds |remote_renderer_| to the mojo message pipe. Can be called multiple
   // times. If an error occurs during connection, OnConnectionError will be
   // called asynchronously.
   void BindRemoteRendererIfNeeded();
 
   // Callback for connection error on |remote_renderer_|.
   void OnConnectionError();
 
-  // Called when |remote_renderer_| has finished initializing.
-  void OnInitialized(bool success);
+  // Callbacks for |remote_renderer_| methods.
+  void OnInitialized(media::RendererClient* client, bool success);
+  void OnFlushed();
+  void OnCdmAttached(bool success);
+
+  void CancelPendingCallbacks();
 
   // |task_runner| on which all methods are invoked, except for GetMediaTime(),
   // which can be called on any thread.
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   // Overlay factory used to create overlays for video frames rendered
   // by the remote renderer.
   std::unique_ptr<VideoOverlayFactory> video_overlay_factory_;
 
   // Video frame overlays are rendered onto this sink.
   // Rendering of a new overlay is only needed when video natural size changes.
-  VideoRendererSink* video_renderer_sink_;
+  VideoRendererSink* video_renderer_sink_ = nullptr;
 
   // Provider of audio/video DemuxerStreams. Must be valid throughout the
   // lifetime of |this|.
-  DemuxerStreamProvider* demuxer_stream_provider_;
+  DemuxerStreamProvider* demuxer_stream_provider_ = nullptr;
 
   // Client of |this| renderer passed in Initialize.
-  media::RendererClient* client_;
+  media::RendererClient* client_ = nullptr;
 
   // This class is constructed on one thread and used exclusively on another
   // thread. This member is used to safely pass the RendererPtr from one thread
   // to another. It is set in the constructor and is consumed in Initialize().
   mojom::RendererPtrInfo remote_renderer_info_;
 
   // Remote Renderer, bound to |task_runner_| during Initialize().
   mojom::RendererPtr remote_renderer_;
 
   // Binding for RendererClient, bound to the |task_runner_|.
   mojo::Binding<RendererClient> binding_;
 
-  // Callbacks passed to Initialize() that we forward messages from
-  // |remote_renderer_| through.
+  bool encountered_error_ = false;
+
   PipelineStatusCB init_cb_;
+  base::Closure flush_cb_;
+  CdmAttachedCB cdm_attached_cb_;
 
   // Lock used to serialize access for |time_|.
   mutable base::Lock lock_;
   base::TimeDelta time_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_CLIENTS_MOJO_RENDERER_IMPL_H_