[Origin Trials] Install origin trial bindings on V8 context conditionally

third_party/WebKit/Source/bindings/core/v8/V8DOMConfiguration.cpp

 /*
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * (INCLUDING, BUT NOT 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/V8DOMConfiguration.h"
 
 #include "bindings/core/v8/V8ObjectConstructor.h"
+#include "bindings/core/v8/V8PerContextData.h"
 #include "platform/TraceEvent.h"
 
 namespace blink {
 
 namespace {
 
 void installAttributeInternal(v8::Isolate* isolate, v8::Local<v8::ObjectTemplate> instanceTemplate, v8::Local<v8::ObjectTemplate> prototypeTemplate, const V8DOMConfiguration::AttributeConfiguration& attribute, const DOMWrapperWorld& world)
 {
     if (attribute.exposeConfiguration == V8DOMConfiguration::OnlyExposedToPrivateScript
         && !world.isPrivateScriptIsolatedWorld())
@@ skipping 19 matching lines @@
         NOTREACHED();
 }
 
 void installAttributeInternal(v8::Isolate* isolate, v8::Local<v8::Object> instance, v8::Local<v8::Object> prototype, const V8DOMConfiguration::AttributeConfiguration& attribute, const DOMWrapperWorld& world)
 {
     if (attribute.exposeConfiguration == V8DOMConfiguration::OnlyExposedToPrivateScript
         && !world.isPrivateScriptIsolatedWorld())
         return;
 
     v8::Local<v8::Name> name = v8AtomicString(isolate, attribute.name);
-    v8::Local<v8::Value> data = v8::External::New(isolate, const_cast<WrapperTypeInfo*>(attribute.data));
+
+    // This method is only being used for installing interfaces which are
+    // enabled through origin trials. Assert here that it is being called with
+    // an attribute configuration for a constructor.
+    // TODO(iclelland): Relax this constraint and allow arbitrary data-type
+    // properties to be added here.
+    DCHECK_EQ(&v8ConstructorAttributeGetter, attribute.getter);
+
+    V8PerContextData* perContextData = V8PerContextData::from(isolate->GetCurrentContext());
+    v8::Local<v8::Function> data = perContextData->constructorForType(attribute.data);
 
     DCHECK(attribute.propertyLocationConfiguration);
     if (attribute.propertyLocationConfiguration & V8DOMConfiguration::OnInstance)
         v8CallOrCrash(instance->DefineOwnProperty(isolate->GetCurrentContext(), name, data, static_cast<v8::PropertyAttribute>(attribute.attribute)));
     if (attribute.propertyLocationConfiguration & V8DOMConfiguration::OnPrototype)
         v8CallOrCrash(prototype->DefineOwnProperty(isolate->GetCurrentContext(), name, data, static_cast<v8::PropertyAttribute>(attribute.attribute)));
     if (attribute.propertyLocationConfiguration & V8DOMConfiguration::OnInterface)
         NOTREACHED();
 }
 
@@ skipping 271 matching lines @@
     data->setInterfaceTemplate(world, wrapperTypeInfo, result);
     return result;
 }
 
 void V8DOMConfiguration::setClassString(v8::Isolate* isolate, v8::Local<v8::ObjectTemplate> objectTemplate, const char* classString)
 {
     objectTemplate->Set(v8::Symbol::GetToStringTag(isolate), v8AtomicString(isolate, classString), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontEnum));
 }
 
 } // namespace blink