Cleanup of SSE optimization files.

src/opts/SkMorphology_opts_SSE2.h

Index: src/opts/SkMorphology_opts_SSE2.h
diff --git a/src/opts/SkMorphology_opts_SSE2.h b/src/opts/SkMorphology_opts_SSE2.h
index bd103e6eba9a6261f6f59ff7e61450acfd169373..bf5aa03b092a9c39667aca2ea694cd42734092c7 100644
--- a/src/opts/SkMorphology_opts_SSE2.h
+++ b/src/opts/SkMorphology_opts_SSE2.h
@@ -5,6 +5,11 @@
  * found in the LICENSE file.
  */
 
+#ifndef SkMorphology_opts_SSE2_DEFINED
+#define SkMorphology_opts_SSE2_DEFINED
+
+#include "SkColor.h"
+
 void SkDilateX_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
                     int width, int height, int srcStride, int dstStride);
 void SkDilateY_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
@@ -13,3 +18,5 @@ void SkErodeX_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
                    int width, int height, int srcStride, int dstStride);
 void SkErodeY_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
                    int width, int height, int srcStride, int dstStride);
+
+#endif