Revert of Clean up SSSE3 and SSE4 stubs.

src/opts/SkBitmapProcState_opts_SSSE3.cpp

Index: src/opts/SkBitmapProcState_opts_SSSE3.cpp
diff --git a/src/opts/SkBitmapProcState_opts_SSSE3.cpp b/src/opts/SkBitmapProcState_opts_SSSE3.cpp
index 07b3171c6ac0a3f31ef9c0d284116172192853cc..17d7da931a7429342a32629be746f3b2774f8245 100644
--- a/src/opts/SkBitmapProcState_opts_SSSE3.cpp
+++ b/src/opts/SkBitmapProcState_opts_SSSE3.cpp
@@ -9,6 +9,14 @@
 #include "SkColorPriv.h"
 #include "SkPaint.h"
 #include "SkUtils.h"
+
+/* With the exception of the compilers that don't support it, we always build the
+ * SSSE3 functions and enable the caller to determine SSSE3 support.  However for
+ * compilers that do not support SSSE3 we provide a stub implementation.
+ */
+#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
+
+#include <tmmintrin.h>  // SSSE3
 
 // adding anonymous namespace seemed to force gcc to inline directly the
 // instantiation, instead of creating the functions
@@ -723,3 +731,31 @@
                                      int count, uint32_t* colors) {
     S32_generic_D32_filter_DXDY_SSSE3<true>(s, xy, count, colors);
 }
+
+#else // SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
+
+void S32_opaque_D32_filter_DX_SSSE3(const SkBitmapProcState& s,
+                                    const uint32_t* xy,
+                                    int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_alpha_D32_filter_DX_SSSE3(const SkBitmapProcState& s,
+                                   const uint32_t* xy,
+                                   int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_opaque_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
+                                      const uint32_t* xy,
+                                      int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_alpha_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
+                                     const uint32_t* xy,
+                                     int count, uint32_t* colors) {
+    sk_throw();
+}
+
+#endif