Roll src/third_party/libvpx/source/libvpx/ 4f774ac50..f80d8011a (12 commits).

third_party/libvpx/libvpx_srcs_x86_64_intrinsics.gypi

Index: third_party/libvpx/libvpx_srcs_x86_64_intrinsics.gypi
diff --git a/third_party/libvpx/libvpx_srcs_x86_64_intrinsics.gypi b/third_party/libvpx/libvpx_srcs_x86_64_intrinsics.gypi
index 81f8f7f88948621d22af93ad8f191d76079ef2f4..43019736d74a4aa72c0e49a1aea9b6bd407942ee 100644
--- a/third_party/libvpx/libvpx_srcs_x86_64_intrinsics.gypi
+++ b/third_party/libvpx/libvpx_srcs_x86_64_intrinsics.gypi
@@ -33,7 +33,7 @@
         '<(libvpx_source)/vp8/encoder/x86/vp8_enc_stubs_sse2.c',
         '<(libvpx_source)/vp8/encoder/x86/vp8_quantize_sse2.c',
         '<(libvpx_source)/vp9/common/x86/vp9_idct_intrin_sse2.c',
-        '<(libvpx_source)/vp9/encoder/x86/vp9_dct_sse2.c',
+        '<(libvpx_source)/vp9/encoder/x86/vp9_dct_intrin_sse2.c',
         '<(libvpx_source)/vp9/encoder/x86/vp9_denoiser_sse2.c',
         '<(libvpx_source)/vp9/encoder/x86/vp9_quantize_sse2.c',
         '<(libvpx_source)/vpx_dsp/x86/avg_intrin_sse2.c',
@@ -95,24 +95,6 @@
       ],
     },
     {
-      'target_name': 'libvpx_intrinsics_avx',
-      'type': 'static_library',
-      'include_dirs': [
-        'source/config/<(OS_CATEGORY)/<(target_arch_full)',
-        '<(libvpx_source)',
-      ],
-      'sources': [
-        '<(libvpx_source)/vp9/encoder/x86/vp9_diamond_search_sad_avx.c',
-      ],
-      'cflags': [ '-mavx', ],
-      'xcode_settings': { 'OTHER_CFLAGS': [ '-mavx' ] },
-      'msvs_settings': {
-        'VCCLCompilerTool': {
-          'EnableEnhancedInstructionSet': '3', # /arch:AVX
-        },
-      },
-    },
-    {
       'target_name': 'libvpx_intrinsics_avx2',
       'type': 'static_library',
       'include_dirs': [