Mac build fix.

src/opts/SkMorphology_opts_SSE2.cpp

 /*
  * Copyright 2013 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkColorPriv.h"
+#include "SkMorphology_opts_SSE2.h"
 
 #include <emmintrin.h>
 
 /* SSE2 version of dilateX, dilateY, erodeX, erodeY.
  * portable versions are in src/effects/SkMorphologyImageFilter.cpp.
  */
 
 enum MorphType {
     kDilate, kErode
 };
@@ skipping 49 matching lines @@
                     int width, int height, int srcStride, int dstStride)
 {
     SkMorph_SSE2<kDilate, kY>(src, dst, radius, width, height, srcStride, dstStride);
 }
 
 void SkErodeY_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
                    int width, int height, int srcStride, int dstStride)
 {
     SkMorph_SSE2<kErode, kY>(src, dst, radius, width, height, srcStride, dstStride);
 }