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

Source/core/rendering/RenderFlexibleBox.cpp

Index: Source/core/rendering/RenderFlexibleBox.cpp
diff --git a/Source/core/rendering/RenderFlexibleBox.cpp b/Source/core/rendering/RenderFlexibleBox.cpp
index 3f8b11f277a7e2958ce106052f8679f2fd632936..400c1c17f6d29a77aad1993679e05608b770bb5e 100644
--- a/Source/core/rendering/RenderFlexibleBox.cpp
+++ b/Source/core/rendering/RenderFlexibleBox.cpp
@@ -135,7 +135,7 @@ static int synthesizedBaselineFromContentBox(const RenderBox* box, LineDirection
     return direction == HorizontalLine ? box->borderTop() + box->paddingTop() + box->contentHeight() : box->borderRight() + box->paddingRight() + box->contentWidth();
 }
 
-int RenderFlexibleBox::baselinePosition(FontBaseline, bool, LineDirectionMode direction, LinePositionMode mode) const
+int RenderFlexibleBox::baselinePosition(FontBaseline, OwnOrFirstLineStyle, LineDirectionMode direction, LinePositionMode mode) const
 {
     ASSERT(mode == PositionOnContainingLine);
     int baseline = firstLineBoxBaseline();
@@ -665,7 +665,7 @@ void RenderFlexibleBox::layoutFlexItems(bool relayoutChildren)
         // Instead of just checking if we have a line, make sure the flexbox
         // has at least a line's worth of height to cover this case.
         LayoutUnit minHeight = borderAndPaddingLogicalHeight()
-            + lineHeight(true, isHorizontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes)
+            + lineHeight(FirstLineStyle, isHorizontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes)
             + scrollbarLogicalHeight();
         if (height() < minHeight)
             setLogicalHeight(minHeight);