text-combine should scale rather than fall back to none when wide

Source/core/rendering/RenderCombineText.h

Index: Source/core/rendering/RenderCombineText.h
diff --git a/Source/core/rendering/RenderCombineText.h b/Source/core/rendering/RenderCombineText.h
index c1fc771a767cfc4b3ad552ef8369b86b775a56e5..87d64726d288ab010cbc1fa5b7b5e8d03fad95fb 100644
--- a/Source/core/rendering/RenderCombineText.h
+++ b/Source/core/rendering/RenderCombineText.h
@@ -30,8 +30,10 @@ class RenderCombineText final : public RenderText {
 public:
     RenderCombineText(Node*, PassRefPtr<StringImpl>);
 
-    void combineText();
+    void updateFont();
     void adjustTextOrigin(FloatPoint& textOrigin, const FloatRect& boxRect) const;
+    bool isTransformNeeded() const { return m_scaleX < 1.0f; }

[kouhei (in TOK), 2015/01/21 18:05:54]

Not sure here, if m_scaleX > 1.0f, wouldn't it still need transform?

+    void transform(GraphicsContext&, const FloatRect& boxRect) const;
     void getStringToRender(int, StringView&, int& length) const;
     bool isCombined() const { return m_isCombined; }
     float combinedTextWidth(const Font& font) const { return font.fontDescription().computedSize(); }
@@ -43,8 +45,10 @@ private:
     virtual const char* renderName() const override { return "RenderCombineText"; }
     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
     virtual void setTextInternal(PassRefPtr<StringImpl>) override;
+    void updateIsCombinedAndText();
 
     float m_combinedTextWidth;
+    float m_scaleX;
     String m_renderingText;
     bool m_isCombined : 1;
     bool m_needsFontUpdate : 1;