Add Isolate parameter to HandleScope::NumberOfHandles.

src/api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 644 matching lines @@
   prev_limit_ = current->limit;
   current->level++;
 }
 
 
 HandleScope::~HandleScope() {
   i::HandleScope::CloseScope(isolate_, prev_next_, prev_limit_);
 }
 
 
-int HandleScope::NumberOfHandles() {
-  i::Isolate* isolate = i::Isolate::Current();
-  if (!EnsureInitializedForIsolate(isolate, "HandleScope::NumberOfHandles")) {
-    return 0;
-  }
-  return i::HandleScope::NumberOfHandles(isolate);
+int HandleScope::NumberOfHandles(Isolate* isolate) {
+  return i::HandleScope::NumberOfHandles(
+      reinterpret_cast<i::Isolate*>(isolate));
 }
 
 
 i::Object** HandleScope::CreateHandle(i::Isolate* isolate, i::Object* value) {
   return i::HandleScope::CreateHandle(isolate, value);
 }
 
 
 i::Object** HandleScope::CreateHandle(i::HeapObject* heap_object,
                                       i::Object* value) {
@@ skipping 6781 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal