List marker pseudo elements.

Source/core/layout/LayoutObject.cpp

Index: Source/core/layout/LayoutObject.cpp
diff --git a/Source/core/layout/LayoutObject.cpp b/Source/core/layout/LayoutObject.cpp
index d1fc99c155c500d236098a2356efdef3c6bce94f..69b90b5c1ac44d0e606166d7a42bf92c3da806be 100644
--- a/Source/core/layout/LayoutObject.cpp
+++ b/Source/core/layout/LayoutObject.cpp
@@ -1518,7 +1518,8 @@ void LayoutObject::showLayoutObject() const
 
 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());
@@ -1528,6 +1529,7 @@ void LayoutObject::showLayoutObject(int printedCharacters) const
             for (; printedCharacters < showTreeCharacterOffset; printedCharacters++)
                 fputc(' ', stderr);
         fputc('\t', stderr);
+        fputc('\t', stderr);
         node()->showNode();
     } else {
         fputc('\n', stderr);
@@ -1675,7 +1677,8 @@ StyleDifference LayoutObject::adjustStyleDifference(StyleDifference diff) const
 
 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.
 
@@ -2743,7 +2746,8 @@ ComputedStyle* LayoutObject::cachedFirstLineStyle() const
 
 ComputedStyle* LayoutObject::getCachedPseudoStyle(PseudoId pseudo, const ComputedStyle* 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;
 
     ComputedStyle* cachedStyle = style()->getCachedPseudoStyle(pseudo);
@@ -3057,8 +3061,6 @@ PositionWithAffinity LayoutObject::createPositionWithAffinity(const Position& po
 {
     if (position.isNotNull())
         return PositionWithAffinity(position);
-
-    ASSERT(!node());
     return createPositionWithAffinity(0, DOWNSTREAM);
 }