Do not SendPasswordForms when LocalFrame is being detached

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

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 200 matching lines @@
   void scheduleVisualUpdateUnlessThrottled();
 
   bool isNavigationAllowed() const { return m_navigationDisableCount == 0; }
 
   InterfaceProvider* interfaceProvider() { return m_interfaceProvider; }
 
   FrameLoaderClient* client() const;
 
   PluginData* pluginData() const;
 
+  bool isFrameDetachedForSpecialOneOffStopTheCrashingHackBug561873() const {
+    return m_detached || !client();
+  }
+
  private:
   friend class FrameNavigationDisabler;
 
   LocalFrame(FrameLoaderClient*, FrameHost*, FrameOwner*, InterfaceProvider*);
 
   // Internal Frame helper overrides:
   WindowProxyManager* getWindowProxyManager() const override;
   // Intentionally private to prevent redundant checks when the type is
   // already LocalFrame.
   bool isLocalFrame() const override { return true; }
@@ skipping 19 matching lines @@
   const Member<EventHandler> m_eventHandler;
   const Member<FrameConsole> m_console;
   const Member<InputMethodController> m_inputMethodController;
 
   int m_navigationDisableCount;
 
   float m_pageZoomFactor;
   float m_textZoomFactor;
 
   bool m_inViewSourceMode;
+  bool m_detached = false;
 
   Member<InstrumentingAgents> m_instrumentingAgents;
 
   InterfaceProvider* const m_interfaceProvider;
 };
 
 inline void LocalFrame::init() {
   m_loader.init();
 }
 
@@ skipping 93 matching lines @@
   explicit ScopedFrameBlamer(LocalFrame*);
   ~ScopedFrameBlamer();
 
  private:
   Member<LocalFrame> m_frame;
 };
 
 }  // namespace blink
 
 #endif  // LocalFrame_h