Revert of binding: Changes the association among global-proxy/global/window-instance.

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

Index: third_party/WebKit/Source/bindings/core/v8/DOMWrapperMap.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/DOMWrapperMap.h b/third_party/WebKit/Source/bindings/core/v8/DOMWrapperMap.h
index 6bf1f7582b9831153f5329f79df4999d48d1bdc4..3cbbca9e3d2c3e8d1546a782bdc88aec111e1ea1 100644
--- a/third_party/WebKit/Source/bindings/core/v8/DOMWrapperMap.h
+++ b/third_party/WebKit/Source/bindings/core/v8/DOMWrapperMap.h
@@ -79,11 +79,12 @@
     return true;
   }
 
-  void removeIfAny(KeyType* key) {
+  void clear() { m_map.Clear(); }
+
+  void removeAndDispose(KeyType* key) {
+    ASSERT(containsKey(key));
     m_map.Remove(key);
   }
-
-  void clear() { m_map.Clear(); }
 
   void markWrapper(KeyType* object) {
     m_map.RegisterExternallyReferencedObject(object);