Do not treat '0' as 'none' for font-size-adjust

Source/platform/fonts/FontDescription.h

Index: Source/platform/fonts/FontDescription.h
diff --git a/Source/platform/fonts/FontDescription.h b/Source/platform/fonts/FontDescription.h
index 9abb94e1c70b8af63885652803bb7fe3ebc16ba8..feddc4e6a37b1d59beacdb003462e90808d85547 100644
--- a/Source/platform/fonts/FontDescription.h
+++ b/Source/platform/fonts/FontDescription.h
@@ -47,6 +47,7 @@ namespace blink {
 
 class PLATFORM_EXPORT FontDescription {
 public:
+    enum SizeAdjust { SizeAdjustNone = -1 };

[dstockwell, 2015/03/20 03:24:29]

This should be a const, not an enum.

[changseok, 2015/03/20 08:29:39]

Done.

     enum GenericFamilyType { NoFamily, StandardFamily, SerifFamily, SansSerifFamily,
                              MonospaceFamily, CursiveFamily, FantasyFamily, PictographFamily };
 
@@ -58,7 +59,7 @@ public:
         : m_specifiedSize(0)
         , m_computedSize(0)
         , m_adjustedSize(0)
-        , m_sizeAdjust(0)
+        , m_sizeAdjust(SizeAdjustNone)
         , m_letterSpacing(0)
         , m_wordSpacing(0)
         , m_orientation(Horizontal)
@@ -135,6 +136,7 @@ public:
     float computedSize() const { return m_computedSize; }
     float adjustedSize() const { return m_adjustedSize; }
     float sizeAdjust() const { return m_sizeAdjust; }
+    bool hasSizeAdjust() const { return m_sizeAdjust >= 0; }

[dstockwell, 2015/03/20 03:24:29]

Should be != SizeAdjustNone.

[changseok, 2015/03/20 08:29:39]

Done.

     FontStyle style() const { return static_cast<FontStyle>(m_style); }
     int computedPixelSize() const { return int(m_computedSize + 0.5f); }
     FontVariant variant() const { return static_cast<FontVariant>(m_variant); }