Have bindings layer assume and insist that all interface types are GCed.

third_party/WebKit/Source/bindings/core/v8/V8DOMWrapper.h

Index: third_party/WebKit/Source/bindings/core/v8/V8DOMWrapper.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8DOMWrapper.h b/third_party/WebKit/Source/bindings/core/v8/V8DOMWrapper.h
index 7f2fdd8d6e867479d114633a38bbf5204c2c9312..5cb815b89adabe528932c049ebe1f3ecb6dbb5f6 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8DOMWrapper.h
+++ b/third_party/WebKit/Source/bindings/core/v8/V8DOMWrapper.h
@@ -59,7 +59,6 @@ public:
     static v8::Local<v8::Object> associateObjectWithWrapper(v8::Isolate*, ScriptWrappable*, const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) WARN_UNUSED_RETURN;
     static v8::Local<v8::Object> associateObjectWithWrapper(v8::Isolate*, Node*, const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) WARN_UNUSED_RETURN;
     static void setNativeInfo(v8::Local<v8::Object>, const WrapperTypeInfo*, ScriptWrappable*);
-    static void clearNativeInfo(v8::Local<v8::Object>, const WrapperTypeInfo*);
     // hasInternalFieldsSet only checks if the value has the internal fields for
     // wrapper obejct and type, and does not check if it's valid or not.  The
     // value may not be a Blink's wrapper object.  In order to make sure of it,
@@ -76,20 +75,10 @@ inline void V8DOMWrapper::setNativeInfo(v8::Local<v8::Object> wrapper, const Wra
     wrapper->SetAlignedPointerInInternalField(v8DOMWrapperTypeIndex, const_cast<WrapperTypeInfo*>(wrapperTypeInfo));
 }
 
-inline void V8DOMWrapper::clearNativeInfo(v8::Local<v8::Object> wrapper, const WrapperTypeInfo* wrapperTypeInfo)
-{
-    ASSERT(wrapper->InternalFieldCount() >= 2);
-    ASSERT(wrapperTypeInfo);
-    // clearNativeInfo() is used only by NP objects, which are not garbage collected.
-    ASSERT(wrapperTypeInfo->gcType == WrapperTypeInfo::RefCountedObject);
-    wrapper->SetAlignedPointerInInternalField(v8DOMWrapperTypeIndex, const_cast<WrapperTypeInfo*>(wrapperTypeInfo));
-    wrapper->SetAlignedPointerInInternalField(v8DOMWrapperObjectIndex, 0);
-}
-
 inline v8::Local<v8::Object> V8DOMWrapper::associateObjectWithWrapper(v8::Isolate* isolate, ScriptWrappable* impl, const WrapperTypeInfo* wrapperTypeInfo, v8::Local<v8::Object> wrapper)
 {
     if (DOMDataStore::setWrapper(isolate, impl, wrapperTypeInfo, wrapper)) {
-        wrapperTypeInfo->refObject(impl);
+        wrapperTypeInfo->wrapperCreated();
         setNativeInfo(wrapper, wrapperTypeInfo, impl);
         ASSERT(hasInternalFieldsSet(wrapper));
     }
@@ -100,7 +89,7 @@ inline v8::Local<v8::Object> V8DOMWrapper::associateObjectWithWrapper(v8::Isolat
 inline v8::Local<v8::Object> V8DOMWrapper::associateObjectWithWrapper(v8::Isolate* isolate, Node* node, const WrapperTypeInfo* wrapperTypeInfo, v8::Local<v8::Object> wrapper)
 {
     if (DOMDataStore::setWrapper(isolate, node, wrapperTypeInfo, wrapper)) {
-        wrapperTypeInfo->refObject(ScriptWrappable::fromNode(node));
+        wrapperTypeInfo->wrapperCreated();
         setNativeInfo(wrapper, wrapperTypeInfo, ScriptWrappable::fromNode(node));
         ASSERT(hasInternalFieldsSet(wrapper));
     }