Throw in window.open() when an invalid URL is being passed

third_party/WebKit/Source/core/frame/LocalDOMWindow.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 36 matching lines @@
 class CSSRuleList;
 class CSSStyleDeclaration;
 class CustomElementRegistry;
 class Document;
 class DocumentInit;
 class DOMSelection;
 class DOMVisualViewport;
 class DOMWindowEventQueue;
 class Element;
 class EventQueue;
+class ExceptionState;
 class External;
 class FrameConsole;
 class FrameRequestCallback;
 class History;
 class IdleRequestCallback;
 class IdleRequestOptions;
 class MediaQueryList;
 class MessageEvent;
 class Navigator;
 class PostMessageTimer;
@@ skipping 198 matching lines @@
 
   bool AllowPopUp();  // Call on first window, not target window.
   static bool AllowPopUp(LocalFrame& first_frame);
 
   Element* frameElement() const;
 
   DOMWindow* open(const String& url_string,
                   const AtomicString& frame_name,
                   const String& window_features_string,
                   LocalDOMWindow* calling_window,
-                  LocalDOMWindow* entered_window);
+                  LocalDOMWindow* entered_window,
+                  ExceptionState&);
 
   FrameConsole* GetFrameConsole() const;
 
   void PrintErrorMessage(const String&) const;
 
   void PostMessageTimerFired(PostMessageTimer*);
   void RemovePostMessageTimer(PostMessageTimer*);
   void DispatchMessageEventWithOriginCheck(
       SecurityOrigin* intended_target_origin,
       Event*,
@@ skipping 96 matching lines @@
   return status_;
 }
 
 inline String LocalDOMWindow::defaultStatus() const {
   return default_status_;
 }
 
 }  // namespace blink
 
 #endif  // LocalDOMWindow_h