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

src/messages.cc

Index: src/messages.cc
diff --git a/src/messages.cc b/src/messages.cc
index 865bdca8fa65f74e3840b90de83f71630a4512b7..50b204ab222648889be79394996837dba2b4b02b 100644
--- a/src/messages.cc
+++ b/src/messages.cc
@@ -138,7 +138,7 @@ Handle<String> MessageHandler::GetMessage(Isolate* isolate,
                             Handle<Object>(message->arguments(), isolate) };
 
   MaybeHandle<Object> maybe_result = Execution::TryCall(
-      fun, isolate->js_builtins_object(), ARRAY_SIZE(argv), argv);
+      fun, isolate->js_builtins_object(), arraysize(argv), argv);
   Handle<Object> result;
   if (!maybe_result.ToHandle(&result) || !result->IsString()) {
     return factory->InternalizeOneByteString(STATIC_ASCII_VECTOR("<error>"));