Cleanup: Remove unneeded media/ SSE2 checks and unused code. (try 2)

media/base/simd/filter_yuv_mmx.cc

Index: media/base/simd/filter_yuv_mmx.cc
diff --git a/media/base/simd/filter_yuv_mmx.cc b/media/base/simd/filter_yuv_mmx.cc
deleted file mode 100644
index 3991fe72fee52870e5a2d387fb345a4b670ec392..0000000000000000000000000000000000000000
--- a/media/base/simd/filter_yuv_mmx.cc
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#if defined(_MSC_VER)
-#include <intrin.h>
-#else
-#include <mmintrin.h>
-#endif
-
-#include "build/build_config.h"
-#include "media/base/simd/filter_yuv.h"
-
-namespace media {
-
-#if defined(COMPILER_MSVC)
-// Warning 4799 is about calling emms before the function exits.
-// We calls emms in a frame level so suppress this warning.
-#pragma warning(push)
-#pragma warning(disable: 4799)
-#endif
-
-void FilterYUVRows_MMX(uint8* dest,
-                       const uint8* src0,
-                       const uint8* src1,
-                       int width,
-                       int fraction) {
-  int pixel = 0;
-
-  // Process the unaligned bytes first.
-  int unaligned_width =
-      (8 - (reinterpret_cast<uintptr_t>(dest) & 7)) & 7;
-  while (pixel < width && pixel < unaligned_width) {
-    dest[pixel] = (src0[pixel] * (256 - fraction) +
-                   src1[pixel] * fraction) >> 8;
-    ++pixel;
-  }
-
-  __m64 zero = _mm_setzero_si64();
-  __m64 src1_fraction = _mm_set1_pi16(fraction);
-  __m64 src0_fraction = _mm_set1_pi16(256 - fraction);
-  const __m64* src0_64 = reinterpret_cast<const __m64*>(src0 + pixel);
-  const __m64* src1_64 = reinterpret_cast<const __m64*>(src1 + pixel);
-  __m64* dest64 = reinterpret_cast<__m64*>(dest + pixel);
-  __m64* end64 = reinterpret_cast<__m64*>(
-      reinterpret_cast<uintptr_t>(dest + width) & ~7);
-
-  while (dest64 < end64) {
-    __m64 src0 = *src0_64++;
-    __m64 src1 = *src1_64++;
-    __m64 src2 = _mm_unpackhi_pi8(src0, zero);
-    __m64 src3 = _mm_unpackhi_pi8(src1, zero);
-    src0 = _mm_unpacklo_pi8(src0, zero);
-    src1 = _mm_unpacklo_pi8(src1, zero);
-    src0 = _mm_mullo_pi16(src0, src0_fraction);
-    src1 = _mm_mullo_pi16(src1, src1_fraction);
-    src2 = _mm_mullo_pi16(src2, src0_fraction);
-    src3 = _mm_mullo_pi16(src3, src1_fraction);
-    src0 = _mm_add_pi16(src0, src1);
-    src2 = _mm_add_pi16(src2, src3);
-    src0 = _mm_srli_pi16(src0, 8);
-    src2 = _mm_srli_pi16(src2, 8);
-    src0 = _mm_packs_pu16(src0, src2);
-    *dest64++ = src0;
-    pixel += 8;
-  }
-
-  while (pixel < width) {
-    dest[pixel] = (src0[pixel] * (256 - fraction) +
-                   src1[pixel] * fraction) >> 8;
-    ++pixel;
-  }
-}
-
-#if defined(COMPILER_MSVC)
-#pragma warning(pop)
-#endif
-
-}  // namespace media