Revert of Support multiple video decoders and encoders

content/common/gpu/media/v4l2_video_encode_accelerator.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 CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_ENCODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_ENCODE_ACCELERATOR_H_
 
 #include <list>
 #include <linux/videodev2.h>
 #include <vector>
@@ skipping 51 matching lines @@
   virtual void Destroy() override;
 
  private:
   // Auto-destroy reference for BitstreamBuffer, for tracking buffers passed to
   // this instance.
   struct BitstreamBufferRef;
 
   // Record for codec input buffers.
   struct InputRecord {
     InputRecord();
-    ~InputRecord();
     bool at_device;
     scoped_refptr<media::VideoFrame> frame;
   };
 
   // Record for output buffers.
   struct OutputRecord {
     OutputRecord();
-    ~OutputRecord();
     bool at_device;
     linked_ptr<BitstreamBufferRef> buffer_ref;
     void* address;
     size_t length;
   };
 
   enum {
     kInitialFramerate = 30,
     // These are rather subjectively tuned.
     kInputBufferCount = 2,
@@ skipping 179 matching lines @@
   // as both threads will not outlive this object.
   base::WeakPtr<V4L2VideoEncodeAccelerator> weak_this_;
   base::WeakPtrFactory<V4L2VideoEncodeAccelerator> weak_this_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(V4L2VideoEncodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_ENCODE_ACCELERATOR_H_