Disables MinorGC from collecting object wrappers

third_party/WebKit/Source/bindings/core/v8/V8GCController.cpp

 /*
  * Copyright (C) 2009 Google Inc. 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
@@ skipping 94 matching lines @@
         : m_isolate(isolate)
     { }
 
     void VisitPersistentHandle(v8::Persistent<v8::Value>* value, uint16_t classId) override
     {
 
         if (classId != WrapperTypeInfo::NodeClassId && classId != WrapperTypeInfo::ObjectClassId) {
             return;
         }
 
+        // MinorGC does not collect objects because it may be expensive to
+        // update references during minorGC
+        if (classId == WrapperTypeInfo::ObjectClassId) {
+            v8::Persistent<v8::Object>::Cast(*value).MarkActive();
+            return;
+        }
+
         v8::Local<v8::Object> wrapper = v8::Local<v8::Object>::New(m_isolate, v8::Persistent<v8::Object>::Cast(*value));
         ASSERT(V8DOMWrapper::hasInternalFieldsSet(wrapper));
         const WrapperTypeInfo* type = toWrapperTypeInfo(wrapper);
         ActiveDOMObject* activeDOMObject = type->toActiveDOMObject(wrapper);
         if (activeDOMObject && activeDOMObject->hasPendingActivity()) {
             v8::Persistent<v8::Object>::Cast(*value).MarkActive();
             return;
         }
 
         if (classId == WrapperTypeInfo::NodeClassId) {
@@ skipping 314 matching lines @@
     Visitor* m_visitor;
 };
 
 void V8GCController::traceDOMWrappers(v8::Isolate* isolate, Visitor* visitor)
 {
     DOMWrapperTracer tracer(visitor);
     v8::V8::VisitHandlesWithClassIds(isolate, &tracer);
 }
 
 } // namespace blink