Roll src/third_party/libvpx/source/libvpx/ f5bd76f5c..e66cd132f (23 commits).

third_party/libvpx/source/config/linux/generic/vpx_dsp_rtcd.h

 #ifndef VPX_DSP_RTCD_H_
 #define VPX_DSP_RTCD_H_
 
 #ifdef RTCD_C
 #define RTCD_EXTERN
 #else
 #define RTCD_EXTERN extern
 #endif
 
 /*
@@ skipping 703 matching lines @@
 
 unsigned int vpx_variance8x16_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse);
 #define vpx_variance8x16 vpx_variance8x16_c
 
 unsigned int vpx_variance8x4_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse);
 #define vpx_variance8x4 vpx_variance8x4_c
 
 unsigned int vpx_variance8x8_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse);
 #define vpx_variance8x8 vpx_variance8x8_c
 
-uint32_t vpx_variance_halfpixvar16x16_h_c(const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int  ref_stride, uint32_t *sse);
-#define vpx_variance_halfpixvar16x16_h vpx_variance_halfpixvar16x16_h_c
-
-uint32_t vpx_variance_halfpixvar16x16_hv_c(const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int  ref_stride, uint32_t *sse);
-#define vpx_variance_halfpixvar16x16_hv vpx_variance_halfpixvar16x16_hv_c
-
-uint32_t vpx_variance_halfpixvar16x16_v_c(const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int  ref_stride, uint32_t *sse);
-#define vpx_variance_halfpixvar16x16_v vpx_variance_halfpixvar16x16_v_c
-
 void vpx_ve_predictor_4x4_c(uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left);
 #define vpx_ve_predictor_4x4 vpx_ve_predictor_4x4_c
 
 int vpx_vector_var_c(const int16_t *ref, const int16_t *src, const int bwl);
 #define vpx_vector_var vpx_vector_var_c
 
 void vpx_dsp_rtcd(void);
 
 #include "vpx_config.h"
 
 #ifdef RTCD_C
 static void setup_rtcd_internal(void)
 {
 }
 #endif
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif