Do proper cpu checking for NEON SkBoxBlur procs.

src/opts/opts_check_arm.cpp

Index: src/opts/opts_check_arm.cpp
diff --git a/src/opts/opts_check_arm.cpp b/src/opts/opts_check_arm.cpp
index a9afa75b07eddde3b304a9f9a251eaffa71afe5f..a9f7db7cb01d628f1914b69cfe711081ffb50dc0 100644
--- a/src/opts/opts_check_arm.cpp
+++ b/src/opts/opts_check_arm.cpp
@@ -19,6 +19,7 @@
 #include "SkUtilsArm.h"
 #include "SkMorphology_opts.h"
 #include "SkMorphology_opts_neon.h"
+#include "SkBlurImage_opts_neon.h"
 
 #if defined(SK_CPU_LENDIAN) && !SK_ARM_NEON_IS_NONE
 extern "C" void memset16_neon(uint16_t dst[], uint16_t value, int count);
@@ -91,3 +92,19 @@ SkMorphologyProc SkMorphologyGetPlatformProc(SkMorphologyProcType type) {
     }
 #endif
 }
+
+bool SkBoxBlurGetPlatformProcs(SkBoxBlurProc* boxBlurX,
+                               SkBoxBlurProc* boxBlurY,
+                               SkBoxBlurProc* boxBlurXY,
+                               SkBoxBlurProc* boxBlurYX) {
+#if SK_ARM_NEON_IS_NONE
+    return NULL;
+#else
+#if SK_ARM_NEON_IS_DYNAMIC
+    if (!sk_cpu_arm_has_neon()) {
+        return NULL;
+    }
+#endif
+    return SkBoxBlurGetPlatformProcs_NEON(boxBlurX, boxBlurY, boxBlurXY, boxBlurYX);
+#endif
+}