libvpx: Pull from upstream

source/libvpx/third_party/libyuv/include/libyuv/convert.h

Index: source/libvpx/third_party/libyuv/include/libyuv/convert.h
diff --git a/source/libvpx/third_party/libyuv/include/libyuv/convert.h b/source/libvpx/third_party/libyuv/include/libyuv/convert.h
index 1bd45c837f14936460a786c8a16c215486960f6b..97936adb27d0bc44e45202d5a562ca7b3f5f53f1 100644
--- a/source/libvpx/third_party/libyuv/include/libyuv/convert.h
+++ b/source/libvpx/third_party/libyuv/include/libyuv/convert.h
@@ -113,15 +113,6 @@ int M420ToI420(const uint8* src_m420, int src_stride_m420,
                uint8* dst_v, int dst_stride_v,
                int width, int height);
 
-// Convert Q420 to I420.
-LIBYUV_API
-int Q420ToI420(const uint8* src_y, int src_stride_y,
-               const uint8* src_yuy2, int src_stride_yuy2,
-               uint8* dst_y, int dst_stride_y,
-               uint8* dst_u, int dst_stride_u,
-               uint8* dst_v, int dst_stride_v,
-               int width, int height);
-
 // ARGB little endian (bgra in memory) to I420.
 LIBYUV_API
 int ARGBToI420(const uint8* src_frame, int src_stride_frame,
@@ -211,8 +202,6 @@ int MJPGSize(const uint8* sample, size_t sample_size,
              int* width, int* height);
 #endif
 
-// Note Bayer formats (BGGR) To I420 are in format_conversion.h
-
 // Convert camera sample to I420 with cropping, rotation and vertical flip.
 // "src_size" is needed to parse MJPG.
 // "dst_stride_y" number of bytes in a row of the dst_y plane.