Make sure the last selection gets spell checked when focusing different frame.

Source/core/editing/FrameSelection.cpp

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 Apple 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 1716 matching lines @@
         element->setNeedsStyleRecalc();
         if (RenderObject* renderer = element->renderer()) {
             if (renderer && renderer->style()->hasAppearance())
                 renderer->theme()->stateChanged(renderer, FocusState);
         }
     }
 
     // Secure keyboard entry is set by the active frame.
     if (m_frame->document()->useSecureKeyboardEntryWhenActive())
         setUseSecureKeyboardEntry(activeAndFocused);
+
+    m_frame->editor()->respondToChangedFocusedOrActiveState(activeAndFocused);
 }
 
 void FrameSelection::pageActivationChanged()
 {
     focusedOrActiveStateChanged();
 }
 
 void FrameSelection::updateSecureKeyboardEntryIfActive()
 {
     if (m_frame->document() && isFocusedAndActive())
@@ skipping 379 matching lines @@
     sel.showTreeForThis();
 }
 
 void showTree(const WebCore::FrameSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
 }
 
 #endif