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

test/cctest/test-mark-compact.cc

Index: test/cctest/test-mark-compact.cc
diff --git a/test/cctest/test-mark-compact.cc b/test/cctest/test-mark-compact.cc
index 1d4b0d8e7d7a9188d47bf4feb250a41ae11a0d55..6047823a729f60dba46c1414e601a65c434e9bd5 100644
--- a/test/cctest/test-mark-compact.cc
+++ b/test/cctest/test-mark-compact.cc
@@ -139,13 +139,13 @@ TEST(MarkCompactCollector) {
   heap->CollectGarbage(OLD_POINTER_SPACE, "trigger 1");
 
   // keep allocating garbage in new space until it fails
-  const int ARRAY_SIZE = 100;
+  const int arraysize = 100;
   AllocationResult allocation;
   do {
-    allocation = heap->AllocateFixedArray(ARRAY_SIZE);
+    allocation = heap->AllocateFixedArray(arraysize);
   } while (!allocation.IsRetry());
   heap->CollectGarbage(NEW_SPACE, "trigger 2");
-  heap->AllocateFixedArray(ARRAY_SIZE).ToObjectChecked();
+  heap->AllocateFixedArray(arraysize).ToObjectChecked();
 
   // keep allocating maps until it fails
   do {