Replace our homegrown ARRAY_SIZE() with Chrome's arraysize().

src/vector.h

Index: src/vector.h
diff --git a/src/vector.h b/src/vector.h
index e12b916106466f19bd0edcb5a15c0bfbd44b03e4..a23f9e6b71a83b7febee7d2c13a69e2d75c9c754 100644
--- a/src/vector.h
+++ b/src/vector.h
@@ -153,7 +153,7 @@ inline int StrLength(const char* string) {
 
 #define STATIC_ASCII_VECTOR(x)                        \
   v8::internal::Vector<const uint8_t>(reinterpret_cast<const uint8_t*>(x), \
-                                      ARRAY_SIZE(x)-1)
+                                      arraysize(x)-1)
 
 inline Vector<const char> CStrVector(const char* data) {
   return Vector<const char>(data, StrLength(data));