Change RenderObject::style(bool) to accept an enum instead

Source/core/rendering/RenderDeprecatedFlexibleBox.cpp

Index: Source/core/rendering/RenderDeprecatedFlexibleBox.cpp
diff --git a/Source/core/rendering/RenderDeprecatedFlexibleBox.cpp b/Source/core/rendering/RenderDeprecatedFlexibleBox.cpp
index 0e8c492832e24ee0c77f761db697db881847e010..4c11eef5b2ec8d4b7ef827e78c3799322f7297c7 100644
--- a/Source/core/rendering/RenderDeprecatedFlexibleBox.cpp
+++ b/Source/core/rendering/RenderDeprecatedFlexibleBox.cpp
@@ -401,7 +401,7 @@ void RenderDeprecatedFlexibleBox::layoutHorizontalBox(bool relayoutChildren)
         }
 
         if (!iterator.first() && hasLineIfEmpty())
-            setHeight(height() + lineHeight(true, style()->isHorizontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes));
+            setHeight(height() + lineHeight(FirstLineStyle, style()->isHorizontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes));
 
         setHeight(height() + toAdd);
 
@@ -717,7 +717,7 @@ void RenderDeprecatedFlexibleBox::layoutVerticalBox(bool relayoutChildren)
         yPos = height();
 
         if (!iterator.first() && hasLineIfEmpty())
-            setHeight(height() + lineHeight(true, style()->isHorizontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes));
+            setHeight(height() + lineHeight(FirstLineStyle, style()->isHorizontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes));
 
         setHeight(height() + toAdd);
 
@@ -934,7 +934,7 @@ void RenderDeprecatedFlexibleBox::applyLineClamp(FlexBoxIterator& iterator, bool
         const UChar ellipsisAndSpace[2] = { horizontalEllipsis, ' ' };
         DEFINE_STATIC_LOCAL(AtomicString, ellipsisAndSpaceStr, (ellipsisAndSpace, 2));
         DEFINE_STATIC_LOCAL(AtomicString, ellipsisStr, (&horizontalEllipsis, 1));
-        const Font& font = style(numVisibleLines == 1)->font();
+        const Font& font = style(numVisibleLines == 1 ? FirstLineStyle : OwnStyle)->font();
 
         // Get ellipsis width, and if the last child is an anchor, it will go after the ellipsis, so add in a space and the anchor width too
         float totalWidth;