Remove custom signatures from V8 bindings

Source/bindings/v8/V8Binding.h

 /*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2012 Ericsson AB. 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.
@@ skipping 543 matching lines @@
         }
 
         V8TRYCATCH(uint32_t, sequenceLength, lengthValue->Int32Value());
         length = sequenceLength;
 
         return v8Value;
     }
 
     PassRefPtr<NodeFilter> toNodeFilter(v8::Handle<v8::Value>, v8::Isolate*);
 
+    DOMWindow* toNativeDOMWindow(v8::Handle<v8::Value>, v8::Isolate*);
+
     inline bool isUndefinedOrNull(v8::Handle<v8::Value> value)
     {
         return value->IsNull() || value->IsUndefined();
     }
 
     // Returns true if the provided object is to be considered a 'host object', as used in the
     // HTML5 structured clone algorithm.
     inline bool isHostObject(v8::Handle<v8::Object> object)
     {
         // If the object has any internal fields, then we won't be able to serialize or deserialize
@@ skipping 126 matching lines @@
     // Result values for platform object 'deleter' methods,
     // http://www.w3.org/TR/WebIDL/#delete
     enum DeleteResult {
         DeleteSuccess,
         DeleteReject,
         DeleteUnknownProperty
     };
 } // namespace WebCore
 
 #endif // V8Binding_h