Need to update first-line when font finish loading.

Source/core/layout/LayoutObject.cpp

Index: Source/core/layout/LayoutObject.cpp
diff --git a/Source/core/layout/LayoutObject.cpp b/Source/core/layout/LayoutObject.cpp
index abd4d61201124cc82585b605cd753adc344d9950..1a63e60998b9d83a5dfe3fdcfd9250ce2f83bdae 100644
--- a/Source/core/layout/LayoutObject.cpp
+++ b/Source/core/layout/LayoutObject.cpp
@@ -1944,6 +1944,17 @@ void LayoutObject::styleDidChange(StyleDifference diff, const ComputedStyle* old
     }
 }
 
+void LayoutObject::firstLineStyleDidChange(const ComputedStyle& oldStyle, const ComputedStyle& newStyle)
+{
+    StyleDifference diff = oldStyle.visualInvalidationDiff(newStyle);
+    if (diff.hasDifference()) {
+        // TODO(rune@opera.com): We should use the diff to determine whether a repaint vs. layout
+        // is needed, but for now just assume a layout will be required. The diff code
+        // in LayoutObject::setStyle would need to be factored out so that it could be reused.
+        setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(LayoutInvalidationReason::StyleChange);
+    }
+}
+
 void LayoutObject::propagateStyleToAnonymousChildren(bool blockChildrenOnly)
 {
     // FIXME: We could save this call when the change only affected non-inherited properties.