Make RenderedRectsForMarkers() to ignore disconnected nodes.

third_party/WebKit/Source/core/dom/Range.h

Index: third_party/WebKit/Source/core/dom/Range.h
diff --git a/third_party/WebKit/Source/core/dom/Range.h b/third_party/WebKit/Source/core/dom/Range.h
index 295565840782f37a5314ca24455dd1d6858f541e..75fc4813ea2a8634c2730336af420c1d62ed7356 100644
--- a/third_party/WebKit/Source/core/dom/Range.h
+++ b/third_party/WebKit/Source/core/dom/Range.h
@@ -30,6 +30,7 @@
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/CoreExport.h"
 #include "core/dom/RangeBoundaryPoint.h"
+#include "core/editing/EphemeralRange.h"
 #include "platform/geometry/FloatRect.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/heap/Handle.h"
@@ -140,8 +141,8 @@ class CORE_EXPORT Range final : public GarbageCollected<Range>,
   Node* pastLastNode() const;
 
   // Not transform-friendly
-  void textRects(Vector<IntRect>&, bool useSelectionHeight = false) const;
   IntRect boundingBox() const;
+  IntRect computeBoundingBox(const EphemeralRange&) const;

[yosin_UTC9, 2017/04/07 04:48:10]

No need to introduce |computeBondingBox()| in this patch.
This patch is just replace |textRects| to |computeTextRects(const
EphemeralRange&)|.

[Hwanseung Lee, 2017/04/07 17:55:53]

Done.

 
   // Transform-friendly
   void textQuads(Vector<FloatQuad>&, bool useSelectionHeight = false) const;