Make Range.detach() a no-op

Source/core/editing/EditorCommand.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Igalia S.L.
  *
  * 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.
@@ skipping 198 matching lines @@
     return executeInsertFragment(frame, fragment.release());
 }
 
 static bool expandSelectionToGranularity(LocalFrame& frame, TextGranularity granularity)
 {
     VisibleSelection selection = frame.selection().selection();
     selection.expandUsingGranularity(granularity);
     RefPtrWillBeRawPtr<Range> newRange = selection.toNormalizedRange();
     if (!newRange)
         return false;
-    if (newRange->collapsed(IGNORE_EXCEPTION))
+    if (newRange->collapsed())
         return false;
     EAffinity affinity = frame.selection().affinity();
     frame.selection().setSelectedRange(newRange.get(), affinity, FrameSelection::CloseTyping);
     return true;
 }
 
 static TriState stateStyle(LocalFrame& frame, CSSPropertyID propertyID, const char* desiredValue)
 {
     if (frame.editor().behavior().shouldToggleStyleBasedOnStartOfSelection())
         return frame.editor().selectionStartHasStyle(propertyID, desiredValue) ? TrueTriState : FalseTriState;
@@ skipping 1504 matching lines @@
 {
     return m_command && m_command->isTextInsertion;
 }
 
 int Editor::Command::idForHistogram() const
 {
     return isSupported() ? m_command->idForUserMetrics : 0;
 }
 
 } // namespace WebCore