Don't populate GlyphBuffer in InlineTextBox::characterWidths

Source/core/rendering/InlineTextBox.cpp

Index: Source/core/rendering/InlineTextBox.cpp
diff --git a/Source/core/rendering/InlineTextBox.cpp b/Source/core/rendering/InlineTextBox.cpp
index 91a40b6194949653122f5f1b679477adcf0a77af..30ce5e0113a19ee27a1f26ba262bfddd4dca7653 100644
--- a/Source/core/rendering/InlineTextBox.cpp
+++ b/Source/core/rendering/InlineTextBox.cpp
@@ -1237,12 +1237,11 @@ void InlineTextBox::characterWidths(Vector<float>& widths) const
 
     TextRun textRun = constructTextRun(styleToUse, font);
 
-    GlyphBuffer glyphBuffer;
     SimpleShaper shaper(&font, textRun);
     float lastWidth = 0;
     widths.resize(m_len);
     for (unsigned i = 0; i < m_len; i++) {
-        shaper.advance(i + 1, &glyphBuffer);
+        shaper.advance(i + 1);
         widths[i] = shaper.m_runWidthSoFar - lastWidth;
         lastWidth = shaper.m_runWidthSoFar;
     }