Dispatching errors across iframes don't match webplatform tests

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

Index: third_party/WebKit/Source/bindings/core/v8/ScriptState.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptState.cpp b/third_party/WebKit/Source/bindings/core/v8/ScriptState.cpp
index ad5ca71890b36167e71eb14e29d247bfaedb597c..41eea215dc4996d2929366ece7f75ec996082549 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptState.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/ScriptState.cpp
@@ -103,4 +103,25 @@ ScriptState* ScriptState::forWorld(LocalFrame* frame, DOMWrapperWorld& world) {
   return scriptState;
 }
 
+ScriptStateForErrorEvent::Scope::Scope(ScriptState* scriptState,
+                                       v8::Local<v8::Context> context)
+    : m_scriptState(scriptState) {
+  ExecutionContext* executionContext = m_scriptState->getExecutionContext();
+  RefPtr<ScriptStateForErrorEvent> scriptStateForErrorEvent =
+      ScriptStateForErrorEvent::create(context);
+  executionContext->setErrorEventScriptState(scriptStateForErrorEvent);
+}
+
+ScriptStateForErrorEvent::Scope::~Scope() {
+  ExecutionContext* executionContext = m_scriptState->getExecutionContext();
+  executionContext->clearErrorEventScriptState();
+}
+
+PassRefPtr<ScriptStateForErrorEvent> ScriptStateForErrorEvent::create(
+    v8::Local<v8::Context> context) {
+  RefPtr<ScriptStateForErrorEvent> scriptState =
+      adoptRef(new ScriptStateForErrorEvent(context));
+  return scriptState;
+}
+
 }  // namespace blink