Convert first letter into a pseudo element.

Source/core/rendering/RenderTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 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 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/rendering/RenderTreeAsText.h"
 
 #include "core/HTMLNames.h"
 #include "core/css/StylePropertySet.h"
 #include "core/dom/Document.h"
+#include "core/dom/PseudoElement.h"
 #include "core/editing/FrameSelection.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/HTMLElement.h"
 #include "core/page/PrintContext.h"
 #include "core/rendering/FlowThreadController.h"
 #include "core/rendering/InlineTextBox.h"
 #include "core/rendering/RenderBR.h"
 #include "core/rendering/RenderDetailsMarker.h"
 #include "core/rendering/RenderFileUploadControl.h"
@@ skipping 127 matching lines @@
 
     if (behavior & RenderAsTextShowAddresses)
         ts << " " << static_cast<const void*>(&o);
 
     if (o.style() && o.style()->zIndex())
         ts << " zI: " << o.style()->zIndex();
 
     if (o.node()) {
         String tagName = getTagName(o.node());
         // FIXME: Temporary hack to make tests pass by simulating the old generated content output.
-        if (o.isPseudoElement() || (o.parent() && o.parent()->isPseudoElement()))
+        if (o.isPseudoElement() || (o.parent() && o.parent()->isPseudoElement() && toPseudoElement(o.parent()->node())->pseudoId() != FIRST_LETTER))
             tagName = emptyAtom;
         if (!tagName.isEmpty()) {
             ts << " {" << tagName << "}";
             // flag empty or unstyled AppleStyleSpan because we never
             // want to leave them in the DOM
             if (isEmptyOrUnstyledAppleStyleSpan(o.node()))
                 ts << " *empty or unstyled AppleStyleSpan*";
         }
     }
 
@@ skipping 583 matching lines @@
     element->document().updateLayout();
 
     RenderObject* renderer = element->renderer();
     if (!renderer || !renderer->isListItem())
         return String();
 
     return toRenderListItem(renderer)->markerText();
 }
 
 } // namespace blink