Remove duplicate Enum Font Pitch

Source/platform/fonts/SimpleFontData.h

Index: Source/platform/fonts/SimpleFontData.h
diff --git a/Source/platform/fonts/SimpleFontData.h b/Source/platform/fonts/SimpleFontData.h
index 2084209c073b84b8844138dc1c8ba84c16b17337..0983426a86b5aa3c0d7afc81744ace5b1a9cb8b4 100644
--- a/Source/platform/fonts/SimpleFontData.h
+++ b/Source/platform/fonts/SimpleFontData.h
@@ -26,6 +26,7 @@
 
 #include "platform/PlatformExport.h"
 #include "platform/fonts/CustomFontData.h"
+#include "platform/fonts/FixedPitchFontType.h"
 #include "platform/fonts/FontBaseline.h"
 #include "platform/fonts/FontData.h"
 #include "platform/fonts/FontMetrics.h"
@@ -48,7 +49,6 @@ namespace blink {
 class FontDescription;
 
 enum FontDataVariant { AutoVariant, NormalVariant, SmallCapsVariant, EmphasisMarkVariant, BrokenIdeographVariant };
-enum Pitch { UnknownPitch, FixedPitch, VariablePitch };
 
 class PLATFORM_EXPORT SimpleFontData : public FontData {
 public:
@@ -121,7 +121,7 @@ public:
     Glyph glyphForCharacter(UChar32) const;
 
     void determinePitch();
-    Pitch pitch() const { return m_treatAsFixedPitch ? FixedPitch : VariablePitch; }
+    FixedPitchFontType pitch() const { return m_pitch; }
 
     virtual bool isCustomFont() const override { return m_customFontData; }
     virtual bool isLoading() const override { return m_customFontData ? m_customFontData->isLoading() : false; }
@@ -164,7 +164,7 @@ private:
     mutable OwnPtr<GlyphMetricsMap<FloatRect>> m_glyphToBoundsMap;
     mutable GlyphMetricsMap<float> m_glyphToWidthMap;
 
-    bool m_treatAsFixedPitch;
+    FixedPitchFontType m_pitch;
 
     bool m_isTextOrientationFallback;
     bool m_isBrokenIdeographFallback;