Nit to self: NULL is not false.

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 a9f7db7cb01d628f1914b69cfe711081ffb50dc0..3a322aa0e9b12e74f35c9f6b7d378df5853de389 100644
--- a/src/opts/opts_check_arm.cpp
+++ b/src/opts/opts_check_arm.cpp
@@ -98,11 +98,11 @@ bool SkBoxBlurGetPlatformProcs(SkBoxBlurProc* boxBlurX,
                                SkBoxBlurProc* boxBlurXY,
                                SkBoxBlurProc* boxBlurYX) {
 #if SK_ARM_NEON_IS_NONE
-    return NULL;
+    return false;
 #else
 #if SK_ARM_NEON_IS_DYNAMIC
     if (!sk_cpu_arm_has_neon()) {
-        return NULL;
+        return false;
     }
 #endif
     return SkBoxBlurGetPlatformProcs_NEON(boxBlurX, boxBlurY, boxBlurXY, boxBlurYX);