--- a/editor/libeditor/EditAction.h
+++ b/editor/libeditor/EditAction.h
@@ -81,17 +81,19 @@ enum class EditSubAction : int32_t
   // eSetOrClearAlignment aligns content or clears alignment with align
   // attribute or text-align.
   eSetOrClearAlignment,
 
   // eCreateOrRemoveBlock creates new block or removes existing block and
   // move its descendants to where the block was.
   eCreateOrRemoveBlock,
 
-  removeList,
+  // eRemoveList removes specific type of list but keep its content.
+  eRemoveList,
+
   makeDefListItem,
   insertElement,
   insertQuotation,
 
   htmlPaste = 3012,
   loadHTML,
   resetTextProperties,
   setAbsolutePosition,

--- a/editor/libeditor/HTMLEditRules.cpp
+++ b/editor/libeditor/HTMLEditRules.cpp
@@ -86,17 +86,17 @@ IsStyleCachePreservingSubAction(EditSubA
 {
   return aEditSubAction == EditSubAction::eDeleteSelectedContent ||
          aEditSubAction == EditSubAction::eInsertParagraphSeparator ||
          aEditSubAction == EditSubAction::eCreateOrChangeList ||
          aEditSubAction == EditSubAction::eIndent ||
          aEditSubAction == EditSubAction::eOutdent ||
          aEditSubAction == EditSubAction::eSetOrClearAlignment ||
          aEditSubAction == EditSubAction::eCreateOrRemoveBlock ||
-         aEditSubAction == EditSubAction::removeList ||
+         aEditSubAction == EditSubAction::eRemoveList ||
          aEditSubAction == EditSubAction::makeDefListItem ||
          aEditSubAction == EditSubAction::insertElement ||
          aEditSubAction == EditSubAction::insertQuotation;
 }
 
 static nsAtom&
 ParagraphSeparatorElement(ParagraphSeparator separator)
 {
@@ -705,17 +705,17 @@ HTMLEditRules::WillDoAction(Selection* a
     case EditSubAction::setAbsolutePosition:
       return WillAbsolutePosition(aCancel, aHandled);
     case EditSubAction::removeAbsolutePosition:
       return WillRemoveAbsolutePosition(aCancel, aHandled);
     case EditSubAction::eSetOrClearAlignment:
       return WillAlign(*aInfo.alignType, aCancel, aHandled);
     case EditSubAction::eCreateOrRemoveBlock:
       return WillMakeBasicBlock(*aInfo.blockType, aCancel, aHandled);
-    case EditSubAction::removeList: {
+    case EditSubAction::eRemoveList: {
       nsresult rv = WillRemoveList(aCancel, aHandled);
       if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED) ||
           NS_WARN_IF(!CanHandleEditAction())) {
         return NS_ERROR_EDITOR_DESTROYED;
       }
       if (NS_WARN_IF(NS_FAILED(rv))) {
         return rv;
       }

--- a/editor/libeditor/HTMLEditor.cpp
+++ b/editor/libeditor/HTMLEditor.cpp
@@ -2112,24 +2112,24 @@ HTMLEditor::RemoveList(const nsAString& 
 
   // Protect the edit rules object from dying
   RefPtr<TextEditRules> rules(mRules);
 
   bool cancel, handled;
 
   AutoPlaceholderBatch beginBatching(this);
   AutoTopLevelEditSubActionNotifier maybeTopLevelEditSubAction(
-                                      *this, EditSubAction::removeList,
+                                      *this, EditSubAction::eRemoveList,
                                       nsIEditor::eNext);
 
   // pre-process
   RefPtr<Selection> selection = GetSelection();
   NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
 
-  EditSubActionInfo subActionInfo(EditSubAction::removeList);
+  EditSubActionInfo subActionInfo(EditSubAction::eRemoveList);
   if (aListType.LowerCaseEqualsLiteral("ol")) {
     subActionInfo.bOrdered = true;
   } else {
     subActionInfo.bOrdered = false;
   }
   nsresult rv =
     rules->WillDoAction(selection, subActionInfo, &cancel, &handled);
   if (cancel || NS_FAILED(rv)) {

--- a/editor/libeditor/TextEditRules.h
+++ b/editor/libeditor/TextEditRules.h
@@ -543,17 +543,17 @@ public:
 
   // EditSubAction::eComputeTextToOutput
   uint32_t flags;
 
   // EditSubAction::eDeleteSelectedContent
   nsIEditor::EDirection collapsedAction;
   nsIEditor::EStripWrappers stripWrappers;
 
-  // EditSubAction::removeList
+  // EditSubAction::eRemoveList
   bool bOrdered;
 
   // EditSubAction::eCreateOrChangeList
   bool entireList;
   const nsAString* bulletType;
 
   // EditSubAction::eSetOrClearAlignment
   const nsAString* alignType;