scale with conversion using 2 steps with unittest

include/libyuv/scale_argb.h

 /*
  *  Copyright 2012 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 17 matching lines @@
 
 // Clipped scale takes destination rectangle coordinates for clip values.
 LIBYUV_API
 int ARGBScaleClip(const uint8* src_argb, int src_stride_argb,
                   int src_width, int src_height,
                   uint8* dst_argb, int dst_stride_argb,
                   int dst_width, int dst_height,
                   int clip_x, int clip_y, int clip_width, int clip_height,
                   enum FilterMode filtering);
 
-// TODO(fbarchard): Implement this.
 // Scale with YUV conversion to ARGB and clipping.
 LIBYUV_API
 int YUVToARGBScaleClip(const uint8* src_y, int src_stride_y,
                        const uint8* src_u, int src_stride_u,
                        const uint8* src_v, int src_stride_v,
                        uint32 src_fourcc,
                        int src_width, int src_height,
                        uint8* dst_argb, int dst_stride_argb,
                        uint32 dst_fourcc,
                        int dst_width, int dst_height,
                        int clip_x, int clip_y, int clip_width, int clip_height,
                        enum FilterMode filtering);
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif
 
 #endif  // INCLUDE_LIBYUV_SCALE_ARGB_H_  NOLINT