[DevTools] Move CommandLineAPI.getEventListeners to native

third_party/WebKit/Source/platform/v8_inspector/InjectedScript.h

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 144 matching lines @@
         void findInjectedScript(V8InspectorSessionImpl*) override;
         String16 m_remoteCallFrameId;
         size_t m_frameOrdinal;
     };
 
 private:
     InjectedScript(InspectedContext*, v8::Local<v8::Object>, PassOwnPtr<InjectedScriptNative>);
     bool canAccessInspectedWindow() const;
     v8::Local<v8::Value> v8Value() const;
     v8::MaybeLocal<v8::Value> wrapValue(ErrorString*, v8::Local<v8::Value>, const String16& groupName, bool forceValueType, bool generatePreview) const;
-    v8::MaybeLocal<v8::Object> commandLineAPI(ErrorString*);
+    v8::Local<v8::Object> commandLineAPI();
 
     InspectedContext* m_context;
     v8::Global<v8::Value> m_value;
     v8::Global<v8::Value> m_lastEvaluationResult;
     OwnPtr<InjectedScriptNative> m_native;
     v8::Global<v8::Object> m_commandLineAPI;
 };
 
 } // namespace blink
 
 #endif