Merge Webkit at r58956: Initial merge by Git.

Change-Id: I1d9fb60ea2c3f2ddc04c17a871acdb39353be228

1 files changed, 12 insertions, 1 deletions

diff --git a/WebCore/platform/graphics/WidthIterator.h b/WebCore/platform/graphics/WidthIterator.h
index 7ca4198..d42a0c5 100644
--- a/WebCore/platform/graphics/WidthIterator.h
+++ b/WebCore/platform/graphics/WidthIterator.h
@@ -33,11 +33,16 @@ class SimpleFontData;
 class TextRun;
 
 struct WidthIterator {
-    WidthIterator(const Font*, const TextRun&, HashSet<const SimpleFontData*>* fallbackFonts = 0);
+    WidthIterator(const Font*, const TextRun&, HashSet<const SimpleFontData*>* fallbackFonts = 0, bool accountForGlyphBounds = false);
 
     void advance(int to, GlyphBuffer* = 0);
     bool advanceOneCharacter(float& width, GlyphBuffer* = 0);
 
+    float maxGlyphBoundingBoxY() const { ASSERT(m_accountForGlyphBounds); return m_maxGlyphBoundingBoxY; }
+    float minGlyphBoundingBoxY() const { ASSERT(m_accountForGlyphBounds); return m_minGlyphBoundingBoxY; }
+    float firstGlyphOverflow() const { ASSERT(m_accountForGlyphBounds); return m_firstGlyphOverflow; }
+    float lastGlyphOverflow() const { ASSERT(m_accountForGlyphBounds); return m_lastGlyphOverflow; }
+
     const Font* m_font;
 
     const TextRun& m_run;
@@ -51,7 +56,13 @@ struct WidthIterator {
 
 private:
     UChar32 normalizeVoicingMarks(int currentCharacter);
+
     HashSet<const SimpleFontData*>* m_fallbackFonts;
+    bool m_accountForGlyphBounds;
+    float m_maxGlyphBoundingBoxY;
+    float m_minGlyphBoundingBoxY;
+    float m_firstGlyphOverflow;
+    float m_lastGlyphOverflow;
 };
 
 }