Fixing crash when executing ApplyStyle command.

Source/core/editing/InsertListCommand.cpp

Index: Source/core/editing/InsertListCommand.cpp
diff --git a/Source/core/editing/InsertListCommand.cpp b/Source/core/editing/InsertListCommand.cpp
index 15ea47e3d99d2463f155f9cea796339351bc8784..db335739342f7ba9bc16c2b89b3d3c675d0dc041 100644
--- a/Source/core/editing/InsertListCommand.cpp
+++ b/Source/core/editing/InsertListCommand.cpp
@@ -174,13 +174,10 @@ void InsertListCommand::doApply()
                 startOfCurrentParagraph = startOfNextParagraph(endingSelection().visibleStart());
             }
             setEndingSelection(endOfSelection);
+            currentSelection = endingSelection().firstRange();
             doApplyForSingleParagraph(forceCreateList, listTag, currentSelection.get());
             // Fetch the end of the selection, for the reason mentioned above.
-            if (endOfSelection.isNull() || endOfSelection.isOrphan()) {
-                endOfSelection = visiblePositionForIndex(indexForEndOfSelection, scope.get());
-                if (endOfSelection.isNull())
-                    return;
-            }
+            endOfSelection = endingSelection().visibleEnd();
             setEndingSelection(VisibleSelection(startOfSelection, endOfSelection, endingSelection().isDirectional()));
             return;
         }