[Binding] Do not install document into hidden Window object

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

Index: third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp b/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
index de1987b17456bdd644d9fbabaa16dc02b86e4a7b..93e6198e6f57472d285e0d483c31ad89e339ba45 100644
--- a/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
@@ -431,11 +431,6 @@ void WindowProxy::updateDocumentProperty()
     // TODO(jochen): Don't replace the accessor with a data value. We need a way to tell v8 that the accessor's return value won't change after this point.
     if (!v8CallBoolean(context->Global()->ForceSet(context, v8AtomicString(m_isolate, "document"), documentWrapper, static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete))))
         return;
-
-    // We also stash a reference to the document on the inner global object so that
-    // LocalDOMWindow objects we obtain from JavaScript references are guaranteed to have
-    // live Document objects.
-    V8HiddenValue::setHiddenValue(m_scriptState.get(), toInnerGlobalObject(context), V8HiddenValue::document(m_isolate), documentWrapper);
 }
 
 void WindowProxy::updateActivityLogger()