List marker pseudo elements.

Source/core/rendering/TextAutosizer.cpp

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (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/TextAutosizer.h"
 
 #include "core/dom/Document.h"
+#include "core/dom/PseudoElement.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/PinchViewport.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLTextAreaElement.h"
 #include "core/layout/LayoutTableCell.h"
 #include "core/page/Page.h"
 #include "core/rendering/InlineIterator.h"
 #include "core/rendering/RenderBlock.h"
@@ skipping 407 matching lines @@
         if (child->isText()) {
             hasTextChild = true;
             // We only calculate this multiplier on-demand to ensure the parent block of this text
             // has entered layout.
             if (!multiplier)
                 multiplier = cluster->m_flags & SUPPRESSING ? 1.0f : clusterMultiplier(cluster);
             applyMultiplier(child, multiplier);
             // FIXME: Investigate why MarkOnlyThis is sufficient.
             if (parent->isRenderInline())
                 child->setPreferredLogicalWidthsDirty(MarkOnlyThis);
+
         } else if (child->isRenderInline()) {
             multiplier = inflate(child, behavior, multiplier);
+
         } else if (child->isRenderBlock() && behavior == DescendToInnerBlocks
             && !classifyBlock(child, INDEPENDENT | EXPLICIT_WIDTH | SUPPRESSING)) {
             multiplier = inflate(child, behavior, multiplier);
         }
         child = child->nextSibling();
     }
 
     if (hasTextChild) {
         applyMultiplier(parent, multiplier); // Parent handles line spacing.
+
     } else if (!parent->isListItem()) {
         // For consistency, a block with no immediate text child should always have a
         // multiplier of 1 (except for list items which are handled in inflateListItem).
         applyMultiplier(parent, 1);
     }
+
+    if (RuntimeEnabledFeatures::listMarkerPseudoElementEnabled() && parent->isListItem()) {
+        if (PseudoElement* element = toElement(parent->node())->pseudoElement(MARKER)) {
+            inflateListItem(toRenderListItem(parent), toRenderListMarker(element->renderer()));
+            element->renderer()->setPreferredLogicalWidthsDirty(MarkOnlyThis);
+        }
+    }
+
     return multiplier;
 }
 
 bool TextAutosizer::shouldHandleLayout() const
 {
     return m_pageInfo.m_settingEnabled && m_pageInfo.m_pageNeedsAutosizing && !m_updatePageInfoDeferred;
 }
 
 void TextAutosizer::updatePageInfoInAllFrames()
 {
@@ skipping 681 matching lines @@
     }
     return computedSize;
 }
 
 void TextAutosizer::trace(Visitor* visitor)
 {
     visitor->trace(m_document);
 }
 
 } // namespace blink