Delete unused video capture code for cropping, non-square pixels, and ARGB.

webrtc/media/base/videocapturer.h

Index: webrtc/media/base/videocapturer.h
diff --git a/webrtc/media/base/videocapturer.h b/webrtc/media/base/videocapturer.h
index 123c18e03f5080f0164f400d755058a45a13476e..edc6cd31a1b9d596042cf4b96cf7be9dc35c3e66 100644
--- a/webrtc/media/base/videocapturer.h
+++ b/webrtc/media/base/videocapturer.h
@@ -284,10 +284,7 @@ class VideoCapturer : public sigslot::has_slots<>,
   std::unique_ptr<VideoFormat> max_format_;
   std::vector<VideoFormat> filtered_supported_formats_;
 
-  int ratio_w_;  // View resolution. e.g. 1280 x 720.
-  int ratio_h_;
   bool enable_camera_list_;
-  bool square_pixel_aspect_ratio_;  // Enable scaling to square pixels.
   int scaled_width_;  // Current output size from ComputeScale.
   int scaled_height_;