Refactor LayoutInline::addOutlineRects to avoid tricky logic to avoid dups

Source/core/layout/LayoutBlock.cpp

Index: Source/core/layout/LayoutBlock.cpp
diff --git a/Source/core/layout/LayoutBlock.cpp b/Source/core/layout/LayoutBlock.cpp
index badc7785b8b72716b8de09760e668a4364650ef9..652b3174e6ab36212c53cce33965e20b9622c058 100644
--- a/Source/core/layout/LayoutBlock.cpp
+++ b/Source/core/layout/LayoutBlock.cpp
@@ -2597,12 +2597,8 @@ void LayoutBlock::addOutlineRects(Vector<LayoutRect>& rects, const LayoutPoint&
         }
     }
 
-    if (inlineElementContinuation) {
-        Vector<LayoutRect> inlineOutlineRects;
-        // We need to give the LayoutInline a clean vector to let it add focus ring rects of line boxes.
-        inlineElementContinuation->addOutlineRects(inlineOutlineRects, additionalOffset + (inlineElementContinuation->containingBlock()->location() - location()));
-        rects.appendVector(inlineOutlineRects);
-    }
+    if (inlineElementContinuation)
+        inlineElementContinuation->addOutlineRects(rects, additionalOffset + (inlineElementContinuation->containingBlock()->location() - location()));
 }
 
 void LayoutBlock::computeSelfHitTestRects(Vector<LayoutRect>& rects, const LayoutPoint& layerOffset) const