Revert of [Extensions] More bindings improvements

extensions/renderer/v8_schema_registry.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/renderer/v8_schema_registry.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 86 matching lines @@
   v8::Context::Scope context_scope(context);
 
   const base::DictionaryValue* schema =
       ExtensionAPI::GetSharedInstance()->GetSchema(api);
   CHECK(schema) << api;
   scoped_ptr<V8ValueConverter> v8_value_converter(V8ValueConverter::create());
   v8::Local<v8::Value> value = v8_value_converter->ToV8Value(schema, context);
   CHECK(!value.IsEmpty());
 
   v8::Local<v8::Object> v8_schema(v8::Local<v8::Object>::Cast(value));
-  v8_schema->SetIntegrityLevel(context, v8::IntegrityLevel::kFrozen);
   schema_cache_->Set(api, v8_schema);
 
   return handle_scope.Escape(v8_schema);
 }
 
 v8::Local<v8::Context> V8SchemaRegistry::GetOrCreateContext(
     v8::Isolate* isolate) {
   // It's ok to create local handles in this function, since this is only called
   // when we have a HandleScope.
   if (!context_holder_) {
     context_holder_.reset(new gin::ContextHolder(isolate));
     context_holder_->SetContext(v8::Context::New(isolate));
     schema_cache_.reset(new SchemaCache(isolate));
     return context_holder_->context();
   }
   return context_holder_->context();
 }
 
 }  // namespace extensions