Cleanup of video capture into GpuMemoryBuffer

media/capture/video/video_capture_device_client.h

 // Copyright 2015 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_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_CLIENT_H_
 #define MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_CLIENT_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 67 matching lines @@
 
  private:
   // Reserve output buffer into which I420 contents can be copied directly.
   // The dimensions of the frame is described by |dimensions|, and requested
   // output buffer format is specified by |storage|. The reserved output buffer
   // is returned; and the pointer to Y plane is stored at [y_plane_data], U
   // plane is stored at [u_plane_data], V plane is stored at [v_plane_data].
   // Returns an nullptr if allocation fails.
   //
   // When requested |storage| is PIXEL_STORAGE_CPU, a single shared memory
-  // chunk is reserved; whereas for PIXEL_STORAGE_GPUMEMORYBUFFER, three
-  // GpuMemoryBuffers in R_8 format representing I420 planes are reserved. The
-  // output buffers stay reserved and mapped for use until the Buffer objects
-  // are destroyed or returned.
+  // chunk is reserved. The output buffers stay reserved and mapped for use
+  // until the Buffer objects are destroyed or returned.
   std::unique_ptr<Buffer> ReserveI420OutputBuffer(
       const gfx::Size& dimensions,
       media::VideoPixelStorage storage,
       uint8_t** y_plane_data,
       uint8_t** u_plane_data,
       uint8_t** v_plane_data);
 
   // The receiver to which we post events.
   const std::unique_ptr<VideoFrameReceiver> receiver_;
 
   const VideoCaptureJpegDecoderFactoryCB jpeg_decoder_factory_callback_;
   std::unique_ptr<VideoCaptureJpegDecoder> external_jpeg_decoder_;
 
   // Whether |external_jpeg_decoder_| has been initialized.
   bool external_jpeg_decoder_initialized_;
 
   // The pool of shared-memory buffers used for capturing.
   const scoped_refptr<VideoCaptureBufferPool> buffer_pool_;
 
 #if DCHECK_IS_ON()
   // Counter used to track the number of times consecutive capture buffers are
   // dropped.
   int dropped_frame_counter_ = 0;
 
   static const int kMaxDroppedFrames = 150;
 #endif  // DCHECK_IS_ON()
 
-  // Indication to the Client to copy-transform the incoming data into
-  // GpuMemoryBuffers.
-  const bool use_gpu_memory_buffers_;
-
   media::VideoPixelFormat last_captured_pixel_format_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureDeviceClient);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_CLIENT_H_