1 files changed, 30 insertions, 23 deletions

diff --git a/Source/WebCore/rendering/RenderRubyRun.h b/Source/WebCore/rendering/RenderRubyRun.h
index 1fe20821c..c6677ec6f 100644
--- a/Source/WebCore/rendering/RenderRubyRun.h
+++ b/Source/WebCore/rendering/RenderRubyRun.h
@@ -28,8 +28,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef RenderRubyRun_h
-#define RenderRubyRun_h
+#pragma once
 
 #include "RenderBlockFlow.h"
 
@@ -38,49 +37,57 @@ namespace WebCore {
 class RenderRubyBase;
 class RenderRubyText;
 
-// RenderRubyRun are 'inline-block/table' like objects,and wrap a single pairing of a ruby base with its ruby text(s).
+// RenderRubyRuns are 'inline-block/table' like objects, and wrap a single pairing of a ruby base with its ruby text(s).
 // See RenderRuby.h for further comments on the structure
 
 class RenderRubyRun final : public RenderBlockFlow {
 public:
-    RenderRubyRun(Document&, PassRef<RenderStyle>);
+    RenderRubyRun(Document&, RenderStyle&&);
     virtual ~RenderRubyRun();
 
     bool hasRubyText() const;
     bool hasRubyBase() const;
-    bool isEmpty() const;
     RenderRubyText* rubyText() const;
     RenderRubyBase* rubyBase() const;
     RenderRubyBase* rubyBaseSafe(); // creates the base if it doesn't already exist
 
-    virtual RenderObject* layoutSpecialExcludedChild(bool relayoutChildren);
-    virtual void layout();
+    RenderObject* layoutSpecialExcludedChild(bool relayoutChildren) override;
+    void layout() override;
+    void layoutBlock(bool relayoutChildren, LayoutUnit pageHeight = 0) override;
 
-    virtual bool isChildAllowed(const RenderObject&, const RenderStyle&) const;
-    virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0);
-    virtual void removeChild(RenderObject&) override;
+    bool isChildAllowed(const RenderObject&, const RenderStyle&) const override;
+    void addChild(RenderObject* child, RenderObject* beforeChild = 0) override;
+    void removeChild(RenderObject&) override;
 
-    virtual RenderBlock* firstLineBlock() const;
-    virtual void updateFirstLetter();
+    RenderBlock* firstLineBlock() const override;
+    void updateFirstLetter(RenderTreeMutationIsAllowed = RenderTreeMutationIsAllowed::Yes) override;
 
-    void getOverhang(bool firstLine, RenderObject* startRenderer, RenderObject* endRenderer, int& startOverhang, int& endOverhang) const;
+    void getOverhang(bool firstLine, RenderObject* startRenderer, RenderObject* endRenderer, float& startOverhang, float& endOverhang) const;
 
     static RenderRubyRun* staticCreateRubyRun(const RenderObject* parentRuby);
-
+    
+    void updatePriorContextFromCachedBreakIterator(LazyLineBreakIterator&) const;
+    void setCachedPriorCharacters(UChar last, UChar secondToLast)
+    {
+        m_lastCharacter = last;
+        m_secondToLastCharacter = secondToLast;
+    }
+    bool canBreakBefore(const LazyLineBreakIterator&) const;
+    
 protected:
     RenderRubyBase* createRubyBase() const;
 
 private:
-    virtual bool isRubyRun() const { return true; }
-    virtual const char* renderName() const { return "RenderRubyRun (anonymous)"; }
-    virtual bool createsAnonymousWrapper() const { return true; }
-    virtual void removeLeftoverAnonymousBlock(RenderBlock*) { }
-};
-
-template<> inline bool isRendererOfType<const RenderRubyRun>(const RenderObject& renderer) { return renderer.isRubyRun(); }
+    bool isRubyRun() const override { return true; }
+    const char* renderName() const override { return "RenderRubyRun (anonymous)"; }
+    bool createsAnonymousWrapper() const override { return true; }
+    void removeLeftoverAnonymousBlock(RenderBlock*) override { }
 
-RENDER_OBJECT_TYPE_CASTS(RenderRubyRun, isRubyRun())
+private:
+    UChar m_lastCharacter;
+    UChar m_secondToLastCharacter;
+};
 
 } // namespace WebCore
 
-#endif // RenderRubyRun_h
+SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderRubyRun, isRubyRun())