List marker pseudo elements.

Source/core/rendering/RenderObject.cpp

Index: Source/core/rendering/RenderObject.cpp
diff --git a/Source/core/rendering/RenderObject.cpp b/Source/core/rendering/RenderObject.cpp
index 31af4831809b877d358fd986377c006044705af9..7ff52f3daa1ef3b96eb2b8e64055292139872f69 100644
--- a/Source/core/rendering/RenderObject.cpp
+++ b/Source/core/rendering/RenderObject.cpp
@@ -1440,7 +1440,8 @@ void RenderObject::showRenderObject() const
 
 void RenderObject::showRenderObject(int printedCharacters) const
 {
-    printedCharacters += fprintf(stderr, "%s %p", renderName(), this);
+    IntRect size = absoluteBoundingBoxRect();
+    printedCharacters += fprintf(stderr, "%s %p (%d,%d %dx%d)", renderName(), this, size.x(), size.y(), size.width(), size.height());
 
     if (isText() && toRenderText(this)->isTextFragment())
         printedCharacters += fprintf(stderr, " \"%s\" ", toRenderText(this)->text().ascii().data());
@@ -1450,6 +1451,7 @@ void RenderObject::showRenderObject(int printedCharacters) const
             for (; printedCharacters < showTreeCharacterOffset; printedCharacters++)
                 fputc(' ', stderr);
         fputc('\t', stderr);
+        fputc('\t', stderr);
         node()->showNode();
     } else
         fputc('\n', stderr);
@@ -1593,7 +1595,8 @@ StyleDifference RenderObject::adjustStyleDifference(StyleDifference diff) const
 
 void RenderObject::setPseudoStyle(PassRefPtr<RenderStyle> 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.
 
@@ -2674,7 +2677,8 @@ RenderStyle* RenderObject::cachedFirstLineStyle() const
 
 RenderStyle* RenderObject::getCachedPseudoStyle(PseudoId pseudo, RenderStyle* parentStyle) const
 {
-    if (pseudo < FIRST_INTERNAL_PSEUDOID && !style()->hasPseudoStyle(pseudo))
+    // FIXME: adding display != LIST_ITEM seems wrong ... wrap in method?
+    if (pseudo < FIRST_INTERNAL_PSEUDOID && !style()->hasPseudoStyle(pseudo) && style()->display() != LIST_ITEM)
         return 0;
 
     RenderStyle* cachedStyle = style()->getCachedPseudoStyle(pseudo);