Rework list marker spacing for better web compatibility.

third_party/WebKit/Source/core/layout/LayoutListMarker.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 22 matching lines @@
 
 // Used to layout the list item's marker.
 // The LayoutListMarker always has to be a child of a LayoutListItem.
 class LayoutListMarker final : public LayoutBox {
 public:
     static LayoutListMarker* createAnonymous(LayoutListItem*);
     ~LayoutListMarker() override;
 
     const String& text() const { return m_text; }
 
+    // A reduced set of list style categories allowing for more concise expression
+    // of list style specific logic.
+    enum SimplifiedListStyle {
+        NoneSimpleStyle,
+        SymbolSimpleStyle,
+        LanguageSimpleStyle
+    };
+
+    // Returns the list's style as one of a reduced high level categorical set of styles.
+    SimplifiedListStyle simplifiedListStyle() const;

[eae, 2015/10/12 06:02:01]

listStyleCategory might be a better name as simplified and list-style both have
very specific meanings. 

[wkorman, 2015/10/14 01:55:30]

Done.

     bool isInside() const;
 
     void updateMarginsAndContent();
 
     IntRect getRelativeMarkerRect() const;
     LayoutRect localSelectionRect() const;
     bool isImage() const override;
     const StyleImage* image() const { return m_image.get(); }
     const LayoutListItem* listItem() const { return m_listItem; }
 
@@ skipping 23 matching lines @@
 
     LayoutUnit lineHeight(bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const override;
     int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const override;
 
     bool isText() const { return !isImage(); }
 
     void setSelectionState(SelectionState) override;
     LayoutRect selectionRectForPaintInvalidation(const LayoutBoxModelObject* paintInvalidationContainer) const override;
     bool canBeSelectionLeaf() const override { return true; }
 
+    LayoutUnit getWidthOfTextWithSuffix(UChar* suffix, int suffixLength) const;
     void updateMargins();
     void updateContent();
 
     void styleWillChange(StyleDifference, const ComputedStyle& newStyle) override;
     void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override;
 
     String m_text;
     RefPtrWillBePersistent<StyleImage> m_image;
     LayoutListItem* m_listItem;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutListMarker, isListMarker());
 
 } // namespace blink
 
 #endif // LayoutListMarker_h