              '<(blink_core_output_dir)/events/EventInit.h',
              '<(blink_core_output_dir)/events/EventListenerOptions.cpp',
 diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp
-index f8d81f7..9de6a55 100644
+index f8d81f7..42cea0d 100644
 --- a/third_party/WebKit/Source/core/dom/Document.cpp
 +++ b/third_party/WebKit/Source/core/dom/Document.cpp
 @@ -26,6 +26,7 @@

+    DOMString message;
+};
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index c3f496da..f3117a3 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -41,6 +41,7 @@

 template<unsigned type>
 bool shouldInvalidateNodeListCachesForAttr(const HeapHashSet<WeakMember<const LiveNodeListBase>> nodeLists[], const QualifiedName& attrName)
 {
@@ -6002,6 +6160,7 @@ DEFINE_TRACE(Document)
     visitor->trace(m_intersectionObserverData);
     visitor->trace(m_snapCoordinator);
     visitor->trace(m_resizeObserverController);
