Ignore visibility when checking whether Position is editable or not at DeletetSelectionCommand

Source/core/editing/DeleteSelectionCommand.cpp

Index: Source/core/editing/DeleteSelectionCommand.cpp
diff --git a/Source/core/editing/DeleteSelectionCommand.cpp b/Source/core/editing/DeleteSelectionCommand.cpp
index 54e05ac2a2b48ce8c5839889b39347982957f06b..019429b337b019f8c99ffa10dff0e7911e47f957 100644
--- a/Source/core/editing/DeleteSelectionCommand.cpp
+++ b/Source/core/editing/DeleteSelectionCommand.cpp
@@ -166,7 +166,7 @@ void DeleteSelectionCommand::initializePositionData()
 
     ASSERT(isEditablePosition(start, ContentIsEditable, DoNotUpdateStyle));
     if (!isEditablePosition(end, ContentIsEditable, DoNotUpdateStyle))
-        end = lastEditableVisiblePositionBeforePositionInRoot(end, highestEditableRoot(start)).deepEquivalent();
+        end = lastEditablePositionBeforePositionInRoot(end, highestEditableRoot(start));
 
     m_upstreamStart = start.upstream();
     m_downstreamStart = start.downstream();