Make InsertListCommand::selectionHasListOfType() to take Position objects

third_party/WebKit/Source/core/editing/commands/InsertListCommand.cpp

Index: third_party/WebKit/Source/core/editing/commands/InsertListCommand.cpp
diff --git a/third_party/WebKit/Source/core/editing/commands/InsertListCommand.cpp b/third_party/WebKit/Source/core/editing/commands/InsertListCommand.cpp
index bef69781f5aaa91504d976afe249e4422d3b5b11..c5bea18bc499cead96eb908dc5373a93a5d90df4 100644
--- a/third_party/WebKit/Source/core/editing/commands/InsertListCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/InsertListCommand.cpp
@@ -96,18 +96,20 @@ HTMLElement* InsertListCommand::mergeWithNeighboringLists(
 }
 
 bool InsertListCommand::selectionHasListOfType(
-    const VisibleSelection& selection,
+    const Position& selectionStart,
+    const Position& selectionEnd,
     const HTMLQualifiedName& listTag) {
+  DCHECK_LE(selectionStart, selectionEnd);
   DCHECK(!document().needsLayoutTreeUpdate());
   DocumentLifecycle::DisallowTransitionScope disallowTransition(
       document().lifecycle());
 
-  VisiblePosition start = selection.visibleStart();
+  VisiblePosition start = createVisiblePosition(selectionStart);
 
   if (!enclosingList(start.deepEquivalent().anchorNode()))
     return false;
 
-  VisiblePosition end = startOfParagraph(selection.visibleEnd());
+  VisiblePosition end = startOfParagraph(createVisiblePosition(selectionEnd));
   while (start.isNotNull() && start.deepEquivalent() != end.deepEquivalent()) {
     HTMLElement* listElement =
         enclosingList(start.deepEquivalent().anchorNode());
@@ -200,7 +202,8 @@ void InsertListCommand::doApply(EditingState* editingState) {
 
     if (startOfParagraph(visibleStartOfSelection, CanSkipOverEditingBoundary)
             .deepEquivalent() != startOfLastParagraph) {
-      forceListCreation = !selectionHasListOfType(selection, listTag);
+      forceListCreation =
+          !selectionHasListOfType(selection.start(), selection.end(), listTag);
 
       VisiblePosition startOfCurrentParagraph = visibleStartOfSelection;
       while (inSameTreeAndOrdered(startOfCurrentParagraph.deepEquivalent(),