MediaLog: Log selected audio/video decoder name.

media/filters/gpu_video_decoder.h

 // Copyright (c) 2012 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_FILTERS_GPU_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_GPU_VIDEO_DECODER_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 24 matching lines @@
 // GetMessageLoop().
 class MEDIA_EXPORT GpuVideoDecoder
     : public VideoDecoder,
       public VideoDecodeAccelerator::Client {
  public:
   explicit GpuVideoDecoder(
       const scoped_refptr<GpuVideoAcceleratorFactories>& factories,
       const scoped_refptr<MediaLog>& media_log);
 
   // VideoDecoder implementation.
+  virtual std::string GetDisplayName() const OVERRIDE;
   virtual void Initialize(const VideoDecoderConfig& config,
                           bool low_delay,
                           const PipelineStatusCB& status_cb,
                           const OutputCB& output_cb) OVERRIDE;
   virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer,
                       const DecodeCB& decode_cb) OVERRIDE;
   virtual void Reset(const base::Closure& closure) OVERRIDE;
   virtual bool NeedsBitstreamConversion() const OVERRIDE;
   virtual bool CanReadWithoutStalling() const OVERRIDE;
   virtual int GetMaxDecodeRequests() const OVERRIDE;
@@ skipping 134 matching lines @@
   // Bound to factories_->GetMessageLoop().
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<GpuVideoDecoder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_GPU_VIDEO_DECODER_H_