Remove -webkit-line-box-contain implementation.

Source/core/layout/LayoutText.cpp

Index: Source/core/layout/LayoutText.cpp
diff --git a/Source/core/layout/LayoutText.cpp b/Source/core/layout/LayoutText.cpp
index 438d88c07c78d4e4f1d2093ff74752d6ba115b99..ed1bb2720d05c38384c5fa95b1b3ac162f787d5b 100644
--- a/Source/core/layout/LayoutText.cpp
+++ b/Source/core/layout/LayoutText.cpp
@@ -1111,16 +1111,13 @@ void LayoutText::computePreferredLogicalWidths(float leadWidth, HashSet<const Si
         m_lastLineLineMinWidth = currMaxWidth;
     }
 
-    if (styleToUse.lineBoxContain() & LineBoxContainGlyphs) {
-        // We shouldn't change our mind once we "know".
-        ASSERT(!m_knownToHaveNoOverflowAndNoFallbackFonts);
-    } else {
-        GlyphOverflow glyphOverflow;
-        glyphOverflow.setFromBounds(glyphBounds, f.fontMetrics().floatAscent(), f.fontMetrics().floatDescent(), m_maxWidth);
-        // We shouldn't change our mind once we "know".
-        ASSERT(!m_knownToHaveNoOverflowAndNoFallbackFonts || (fallbackFonts.isEmpty() && glyphOverflow.isZero()));
-        m_knownToHaveNoOverflowAndNoFallbackFonts = fallbackFonts.isEmpty() && glyphOverflow.isZero();
-    }
+    // TODO(wkorman): Look into potentially removing GlyphOverflow or at least the
+    // computeBounds field as we no longer use it for line-box-contain implementation.
+    GlyphOverflow glyphOverflow;
+    glyphOverflow.setFromBounds(glyphBounds, f.fontMetrics().floatAscent(), f.fontMetrics().floatDescent(), m_maxWidth);
+    // We shouldn't change our mind once we "know".
+    ASSERT(!m_knownToHaveNoOverflowAndNoFallbackFonts || (fallbackFonts.isEmpty() && glyphOverflow.isZero()));
+    m_knownToHaveNoOverflowAndNoFallbackFonts = fallbackFonts.isEmpty() && glyphOverflow.isZero();
 
     clearPreferredLogicalWidthsDirty();
 }