Remove unused methods about Node::class_id_

BUG=

Review URL: https://codereview.chromium.org/11983002
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/global-handles.cc

@@ -129,7 +129,6 @@ class GlobalHandles::Node {
   }
 
   uint16_t wrapper_class_id() const { return class_id_; }
-  void set_wrapper_class_id(uint16_t class_id) { class_id_ = class_id; }
 
   // State and flag accessors.
 
@@ -508,14 +507,6 @@ bool GlobalHandles::IsWeak(Object** location) {
 }
 
 
-void GlobalHandles::SetWrapperClassId(Object** location, uint16_t class_id) {
-  Node::FromLocation(location)->set_wrapper_class_id(class_id);
-}
-
-uint16_t GlobalHandles::GetWrapperClassId(Object** location) {
-  return Node::FromLocation(location)->wrapper_class_id();
-}
-
 void GlobalHandles::IterateWeakRoots(ObjectVisitor* v) {
   for (NodeIterator it(this); !it.done(); it.Advance()) {
     if (it.node()->IsWeakRetainer()) v->VisitPointer(it.node()->location());

src/global-handles.h

@@ -130,9 +130,6 @@ class GlobalHandles {
                 void* parameter,
                 WeakReferenceCallback callback);
 
-  static void SetWrapperClassId(Object** location, uint16_t class_id);
-  static uint16_t GetWrapperClassId(Object** location);
-
   // Returns the current number of weak handles.
   int NumberOfWeakHandles() { return number_of_weak_handles_; }