Fix devtools bugs Fix a spurious layout test failure

Source/bindings/core/dart/DartInspectorRuntimeAgent.cpp

 #include "config.h"
 #include "bindings/core/dart/DartInspectorRuntimeAgent.h"
 
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/dart/DartInjectedScript.h"
 #include "bindings/core/dart/DartInjectedScriptManager.h"
+#include "bindings/core/dart/DartScriptState.h"
 #include "bindings/core/dart/DartScriptDebugServer.h"
 #include "core/inspector/InjectedScript.h"
 #include "core/inspector/InspectorState.h"
 #include "core/inspector/V8Debugger.h"
 #include "platform/JSONValues.h"
 
 using blink::TypeBuilder::Runtime::ExecutionContextDescription;
 
 namespace blink {
 
@@ skipping 126 matching lines @@
     DartInjectedScript* injectedScript = m_injectedScriptManager->injectedScriptForObjectId(objectId);
     if (injectedScript)
         injectedScript->releaseObject(objectId);
 }
 
 void DartInspectorRuntimeAgent::releaseObjectGroup(ErrorString*, const String& objectGroup)
 {
     m_injectedScriptManager->releaseObjectGroup(objectGroup);
 }
 
-int DartInspectorRuntimeAgent::addExecutionContextToFrontendHelper(DartScriptState* scriptState, bool isPageContext, const String& name, const String& frameId)
+void DartInspectorRuntimeAgent::addExecutionContextToFrontendHelper(DartScriptState* scriptState, bool isPageContext, const String& name, const String& frameId)
 {
-    return m_injectedScriptManager->injectedScriptIdFor(scriptState);
+    m_inspectorRuntimeAgent->addExecutionContextToFrontendDart(m_injectedScriptManager->injectedScriptIdFor(scriptState), "", "", name,  frameId, "Dart", scriptState->libraryId());
 }
 
 } // namespace blink