Use correct creation context when converting sequences to V8

third_party/WebKit/Source/bindings/core/v8/ToV8.h

Index: third_party/WebKit/Source/bindings/core/v8/ToV8.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/ToV8.h b/third_party/WebKit/Source/bindings/core/v8/ToV8.h
index 39ad5ddf5d831d4db8ed1707974769eb52a02703..3f4a97795b59ea2d00ceff072b9e83cefde0a52c 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ToV8.h
+++ b/third_party/WebKit/Source/bindings/core/v8/ToV8.h
@@ -198,11 +198,15 @@ inline v8::Local<v8::Value> toV8(const Dictionary& value, v8::Local<v8::Object>
 template<typename Sequence>
 inline v8::Local<v8::Value> toV8SequenceInternal(const Sequence& sequence, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
 {
-    v8::Local<v8::Array> array = v8::Array::New(isolate, sequence.size());
+    v8::Local<v8::Array> array;
+    {
+        v8::Context::Scope contextScope(creationContext->CreationContext());
+        array = v8::Array::New(isolate, sequence.size());
+    }
     uint32_t index = 0;
     typename Sequence::const_iterator end = sequence.end();
     for (typename Sequence::const_iterator iter = sequence.begin(); iter != end; ++iter) {
-        v8::Local<v8::Value> value = toV8(*iter, creationContext, isolate);
+        v8::Local<v8::Value> value = toV8(*iter, array, isolate);
         if (value.IsEmpty())
             value = v8::Undefined(isolate);
         if (!v8CallBoolean(array->Set(isolate->GetCurrentContext(), v8::Integer::New(isolate, index++), value)))
@@ -226,9 +230,13 @@ inline v8::Local<v8::Value> toV8(const HeapVector<T, inlineCapacity>& value, v8:
 template<typename T>
 inline v8::Local<v8::Value> toV8(const Vector<std::pair<String, T>>& value, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
 {
-    v8::Local<v8::Object> object = v8::Object::New(isolate);
+    v8::Local<v8::Object> object;
+    {
+        v8::Context::Scope contextScope(creationContext->CreationContext());
+        object = v8::Object::New(isolate);
+    }
     for (unsigned i = 0; i < value.size(); ++i) {
-        v8::Local<v8::Value> v8Value = toV8(value[i].second, creationContext, isolate);
+        v8::Local<v8::Value> v8Value = toV8(value[i].second, object, isolate);
         if (v8Value.IsEmpty())
             v8Value = v8::Undefined(isolate);
         if (!v8CallBoolean(object->Set(isolate->GetCurrentContext(), v8String(isolate, value[i].first), v8Value)))