List marker pseudo elements.

Source/core/layout/LayoutObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1528 matching lines @@
         containingBlock()->showLineTreeAndMark(0, 0, 0, 0, this);
 }
 
 void LayoutObject::showLayoutObject() const
 {
     showLayoutObject(0);
 }
 
 void LayoutObject::showLayoutObject(int printedCharacters) const
 {
-    printedCharacters += fprintf(stderr, "%s %p", decoratedName().ascii().data(), this);
+    IntRect size = absoluteBoundingBoxRect();
+    printedCharacters += fprintf(stderr, "%s %p (%d,%d %dx%d)", decoratedName().ascii().data(), this, size.x(), size.y(), size.width(), size.height());
 
     if (isText() && toLayoutText(this)->isTextFragment())
         printedCharacters += fprintf(stderr, " \"%s\" ", toLayoutText(this)->text().ascii().data());
 
     if (node()) {
         if (printedCharacters)
             for (; printedCharacters < showTreeCharacterOffset; printedCharacters++)
                 fputc(' ', stderr);
         fputc('\t', stderr);
+        fputc('\t', stderr);
         node()->showNode();
     } else {
         fputc('\n', stderr);
     }
 }
 
 void LayoutObject::showLayoutTreeAndMark(const LayoutObject* markedObject1, const char* markedLabel1, const LayoutObject* markedObject2, const char* markedLabel2, int depth) const
 {
     int printedCharacters = 0;
     if (markedObject1 == this && markedLabel1)
@@ skipping 127 matching lines @@
     if (diff.needsPaintInvalidationLayer() && !hasLayer()) {
         diff.clearNeedsPaintInvalidation();
         diff.setNeedsPaintInvalidationObject();
     }
 
     return diff;
 }
 
 void LayoutObject::setPseudoStyle(PassRefPtr<ComputedStyle> pseudoStyle)
 {
-    ASSERT(pseudoStyle->styleType() == BEFORE || pseudoStyle->styleType() == AFTER || pseudoStyle->styleType() == FIRST_LETTER);
+    ASSERT(pseudoStyle->styleType() == BEFORE || pseudoStyle->styleType() == AFTER || pseudoStyle->styleType() == FIRST_LETTER
+        || (RuntimeEnabledFeatures::listMarkerPseudoElementEnabled() && pseudoStyle->styleType() == MARKER));
 
     // FIXME: We should consider just making all pseudo items use an inherited style.
 
     // Images are special and must inherit the pseudoStyle so the width and height of
     // the pseudo element doesn't change the size of the image. In all other cases we
     // can just share the style.
     //
     // Quotes are also LayoutInline, so we need to create an inherited style to avoid
     // getting an inline with positioning or an invalid display.
     //
@@ skipping 1593 matching lines @@
 {
     if (object1) {
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif