Consolidate Font::codePath kerning & ligatures exceptions

Source/platform/fonts/Font.h

Index: Source/platform/fonts/Font.h
diff --git a/Source/platform/fonts/Font.h b/Source/platform/fonts/Font.h
index f80de989b2b1c0e4d464f03a8e21c07087bf2b79..77a14a0655108bf39685450a2a8faacd1395ef25 100644
--- a/Source/platform/fonts/Font.h
+++ b/Source/platform/fonts/Font.h
@@ -131,7 +131,8 @@ public:
     std::pair<GlyphData, GlyphPage*> glyphDataAndPageForCharacter(UChar32&, bool mirror, bool normalizeSpace = false, FontDataVariant = AutoVariant) const;
     bool primaryFontHasGlyphForCharacter(UChar32) const;
 
-    CodePath codePath(const TextRun&) const;
+    CodePath codePath(const TextRun& run) const { return codePath(run, 0, run.length()); }
+    CodePath codePath(const TextRun&, int from, int to) const;
 
     PassTextBlobPtr buildTextBlob(const TextRunPaintInfo&, const FloatPoint& textOrigin, bool couldUseLCDRenderedText, CustomFontNotReadyAction = DoNotPaintIfFontNotReady) const;
     void drawTextBlob(GraphicsContext*, const SkTextBlob*, const SkPoint& origin) const;
@@ -169,7 +170,6 @@ private:
 public:
     // Useful for debugging the different font rendering code paths.
     static void setCodePath(CodePath);
-    static CodePath codePath();
     static CodePath s_codePath;
 
     FontSelector* fontSelector() const;