Add missing include in SkBlurImage optimization

src/opts/SkBlurImage_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 <emmintrin.h>
 #include "SkBitmap.h"
 #include "SkBlurImage_opts_SSE2.h"
 #include "SkColorPriv.h"
 #include "SkRect.h"
+#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE41
+#include <smmintrin.h>

[f(malita), 2014/05/20 22:05:01]

This appears to be causing errors on Chromium's Mac builders:
http://build.chromium.org/p/chromium.chrome/builders/Google%20Chrome%20Mac/bu...

Any idea what's going on?

[henrik.smiding, 2014/05/21 09:00:37]

The only way I can see this happening is if __SSE4_2__ is set, but not
__SSE4_1__. Are you setting __SSE4_2__ manually or via -msse4? When you set
-msse4 gcc will set all 'lower' SSE-level defines as well. This is what Skia's
SSE-level detection is counting on.

+#endif
 
 namespace {
 enum BlurDirection {
     kX, kY
 };
 
 /* Helper function to spread the components of a 32-bit integer into the
  * lower 8 bits of each 32-bit element of an SSE register.
  */
 inline __m128i expand(int a) {
@@ skipping 80 matching lines @@
 bool SkBoxBlurGetPlatformProcs_SSE2(SkBoxBlurProc* boxBlurX,
                                     SkBoxBlurProc* boxBlurY,
                                     SkBoxBlurProc* boxBlurXY,
                                     SkBoxBlurProc* boxBlurYX) {
     *boxBlurX = SkBoxBlur_SSE2<kX, kX>;
     *boxBlurY = SkBoxBlur_SSE2<kY, kY>;
     *boxBlurXY = SkBoxBlur_SSE2<kX, kY>;
     *boxBlurYX = SkBoxBlur_SSE2<kY, kX>;
     return true;
 }