bindings: Reduces the binary size by reducing # of callback functions.

Source/bindings/core/v8/WrapperTypeInfo.h

 /*
  * Copyright (C) 2010 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 164 matching lines @@
     const gin::GinEmbedder ginEmbedder;
 
     DomTemplateFunction domTemplateFunction;
     const RefObjectFunction refObjectFunction;
     const DerefObjectFunction derefObjectFunction;
     const TraceFunction traceFunction;
     const ToActiveDOMObjectFunction toActiveDOMObjectFunction;
     const ResolveWrapperReachabilityFunction visitDOMWrapperFunction;
     InstallConditionallyEnabledMethodsFunction installConditionallyEnabledMethodsFunction;
     const InstallConditionallyEnabledPropertiesFunction installConditionallyEnabledPropertiesFunction;
+    const char* const interfaceName;
     const WrapperTypeInfo* parentClass;
     const unsigned wrapperTypePrototype : 1; // WrapperTypePrototype
     const unsigned wrapperClassId : 2; // WrapperClassId
     const unsigned eventTargetInheritance : 1; // EventTargetInheritance
     const unsigned lifetime : 1; // Lifetime
     const unsigned gcType : 2; // GCType
 };
 
 static_assert(offsetof(struct WrapperTypeInfo, ginEmbedder) == offsetof(struct gin::WrapperInfo, embedder), "offset of WrapperTypeInfo.ginEmbedder must be the same as gin::WrapperInfo.embedder");
 
@@ skipping 32 matching lines @@
 }
 
 inline void releaseObject(v8::Handle<v8::Object> wrapper)
 {
     toWrapperTypeInfo(wrapper)->derefObject(toScriptWrappable(wrapper));
 }
 
 } // namespace blink
 
 #endif // WrapperTypeInfo_h