Replace OFFSET_OF with offsetof as far as possible.

src/global-handles.cc

Index: src/global-handles.cc
diff --git a/src/global-handles.cc b/src/global-handles.cc
index 3bb7706eb5e9c7c362b3c835e56cdfa4241df059..aa6542baee922f8f4e517cd6764f8b8ed71290ee 100644
--- a/src/global-handles.cc
+++ b/src/global-handles.cc
@@ -39,13 +39,13 @@ class GlobalHandles::Node {
 
   // Maps handle location (slot) to the containing node.
   static Node* FromLocation(Object** location) {
-    DCHECK(OFFSET_OF(Node, object_) == 0);
+    DCHECK(offsetof(Node, object_) == 0);
     return reinterpret_cast<Node*>(location);
   }
 
   Node() {
-    DCHECK(OFFSET_OF(Node, class_id_) == Internals::kNodeClassIdOffset);
-    DCHECK(OFFSET_OF(Node, flags_) == Internals::kNodeFlagsOffset);
+    DCHECK(offsetof(Node, class_id_) == Internals::kNodeClassIdOffset);
+    DCHECK(offsetof(Node, flags_) == Internals::kNodeFlagsOffset);
     STATIC_ASSERT(static_cast<int>(NodeState::kMask) ==
                   Internals::kNodeStateMask);
     STATIC_ASSERT(WEAK == Internals::kNodeStateIsWeakValue);