bindings: Remove the hidden prototype from HTMLDocument.

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

 /*
  * Copyright (C) 2009 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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "bindings/core/v8/V8DOMWrapper.h"
 
 #include "bindings/core/v8/V8Binding.h"
-#include "bindings/core/v8/V8HTMLCollection.h"
-#include "bindings/core/v8/V8HTMLDocument.h"
 #include "bindings/core/v8/V8Location.h"
 #include "bindings/core/v8/V8ObjectConstructor.h"
 #include "bindings/core/v8/V8PerContextData.h"
 #include "bindings/core/v8/V8PerIsolateData.h"
 #include "bindings/core/v8/V8ScriptRunner.h"
 #include "bindings/core/v8/V8Window.h"
 
 namespace blink {
 
-static v8::Local<v8::Object> wrapInShadowTemplate(v8::Local<v8::Object> wrapper, ScriptWrappable* scriptWrappable, v8::Isolate* isolate)
-{
-    static int shadowTemplateKey; // This address is used for a key to look up the dom template.
-    V8PerIsolateData* data = V8PerIsolateData::from(isolate);
-    v8::Local<v8::FunctionTemplate> shadowTemplate = data->existingDOMTemplate(&shadowTemplateKey);
-    if (shadowTemplate.IsEmpty()) {
-        shadowTemplate = v8::FunctionTemplate::New(isolate);
-        if (shadowTemplate.IsEmpty())
-            return v8::Local<v8::Object>();
-        shadowTemplate->SetClassName(v8AtomicString(isolate, "HTMLDocument"));
-        shadowTemplate->Inherit(V8HTMLDocument::domTemplate(isolate));
-        shadowTemplate->InstanceTemplate()->SetInternalFieldCount(V8HTMLDocument::internalFieldCount);
-        data->setDOMTemplate(&shadowTemplateKey, shadowTemplate);
-    }
-
-    v8::Local<v8::Function> shadowConstructor;
-    if (!shadowTemplate->GetFunction(isolate->GetCurrentContext()).ToLocal(&shadowConstructor))
-        return v8::Local<v8::Object>();
-
-    v8::Local<v8::Object> shadow;
-    if (!V8ScriptRunner::instantiateObject(isolate, shadowConstructor).ToLocal(&shadow))
-        return v8::Local<v8::Object>();
-    if (!v8CallBoolean(shadow->SetPrototype(isolate->GetCurrentContext(), wrapper)))
-        return v8::Local<v8::Object>();
-    V8DOMWrapper::setNativeInfo(wrapper, &V8HTMLDocument::wrapperTypeInfo, scriptWrappable);
-    return shadow;
-}
-
 v8::Local<v8::Object> V8DOMWrapper::createWrapper(v8::Isolate* isolate, v8::Local<v8::Object> creationContext, const WrapperTypeInfo* type, ScriptWrappable* scriptWrappable)
 {
     ASSERT(!type->equals(&V8Window::wrapperTypeInfo));
     // According to https://html.spec.whatwg.org/multipage/browsers.html#security-location,
     // cross-origin script access to a few properties of Location is allowed.
     // Location already implements the necessary security checks.
     bool withSecurityCheck = !type->equals(&V8Location::wrapperTypeInfo);
     V8WrapperInstantiationScope scope(creationContext, isolate, withSecurityCheck);
 
     V8PerContextData* perContextData = V8PerContextData::from(scope.context());
     v8::Local<v8::Object> wrapper;
     if (perContextData) {
         wrapper = perContextData->createWrapperFromCache(type);
     } else {
         if (!type->domTemplate(isolate)->InstanceTemplate()->NewInstance(scope.context()).ToLocal(&wrapper))
             return v8::Local<v8::Object>();
     }
 
-    if (type == &V8HTMLDocument::wrapperTypeInfo && !wrapper.IsEmpty())
-        wrapper = wrapInShadowTemplate(wrapper, scriptWrappable, isolate);
-
     return wrapper;
 }
 
 bool V8DOMWrapper::isWrapper(v8::Isolate* isolate, v8::Local<v8::Value> value)
 {
     if (value.IsEmpty() || !value->IsObject())
         return false;
     v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(value);
 
     if (object->InternalFieldCount() < v8DefaultWrapperInternalFieldCount)
@@ skipping 43 matching lines @@
     v8::Isolate* isolate = m_context->GetIsolate();
     // TODO(jochen): Currently, Location is the only object for which we can reach this code path. Should be generalized.
     ExceptionState exceptionState(ExceptionState::ConstructionContext, "Location", isolate->GetCurrentContext()->Global(), isolate);
     LocalDOMWindow* callingWindow = callingDOMWindow(isolate);
     DOMWindow* targetWindow = toDOMWindow(m_context);
     exceptionState.throwSecurityError(targetWindow->sanitizedCrossDomainAccessErrorMessage(callingWindow), targetWindow->crossDomainAccessErrorMessage(callingWindow));
     exceptionState.throwIfNeeded();
 }
 
 } // namespace blink