Remove support for TreatReturnedNullStringAs=Null|Undefined

third_party/WebKit/Source/bindings/core/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 166 matching lines @@
 inline void v8SetReturnValueStringOrNull(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
 {
     if (string.isNull()) {
         v8SetReturnValueNull(info);
         return;
     }
     V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
 }
 
 template<typename CallbackInfo>
-inline void v8SetReturnValueStringOrUndefined(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
-{
-    if (string.isNull()) {
-        v8SetReturnValueUndefined(info);
-        return;
-    }
-    V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
-}
-
-template<typename CallbackInfo>
 inline void v8SetReturnValue(const CallbackInfo& callbackInfo, ScriptWrappable* impl, v8::Local<v8::Object> creationContext)
 {
     if (UNLIKELY(!impl)) {
         v8SetReturnValueNull(callbackInfo);
         return;
     }
     if (DOMDataStore::setReturnValue(callbackInfo.GetReturnValue(), impl))
         return;
     v8::Local<v8::Object> wrapper = impl->wrap(callbackInfo.GetIsolate(), creationContext);
     v8SetReturnValue(callbackInfo, wrapper);
@@ skipping 876 matching lines @@
 PassRefPtr<TracedValue> devToolsTraceEventData(v8::Isolate*, ExecutionContext*, v8::Local<v8::Function>);
 
 // Callback functions used by generated code.
 CORE_EXPORT void v8ConstructorAttributeGetter(v8::Local<v8::Name> propertyName, const v8::PropertyCallbackInfo<v8::Value>&);
 
 typedef void (*InstallTemplateFunction)(v8::Local<v8::FunctionTemplate>, v8::Isolate*);
 
 } // namespace blink
 
 #endif // V8Binding_h