[InputEvent] Support |deleteByDrag|, |insertFromDrop| and fire in sequential order

third_party/WebKit/Source/core/editing/commands/DeleteSelectionCommand.h

 /*
  * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 
 #include "core/editing/commands/CompositeEditCommand.h"
 
 namespace blink {
 
 class EditingStyle;
 class HTMLTableRowElement;
 
 class DeleteSelectionCommand final : public CompositeEditCommand {
 public:
-    static DeleteSelectionCommand* create(Document& document, bool smartDelete = false, bool mergeBlocksAfterDelete = true, bool expandForSpecialElements = false, bool sanitizeMarkup = true, InputEvent::InputType inputType = InputEvent::InputType::None)
+    static DeleteSelectionCommand* create(Document& document, bool smartDelete = false, bool mergeBlocksAfterDelete = true, bool expandForSpecialElements = false, bool sanitizeMarkup = true, InputEvent::InputType inputType = InputEvent::InputType::None, const Position& referenceMovePosition = Position())
     {
-        return new DeleteSelectionCommand(document, smartDelete, mergeBlocksAfterDelete, expandForSpecialElements, sanitizeMarkup, inputType);
+        return new DeleteSelectionCommand(document, smartDelete, mergeBlocksAfterDelete, expandForSpecialElements, sanitizeMarkup, inputType, referenceMovePosition);
     }
     static DeleteSelectionCommand* create(const VisibleSelection& selection, bool smartDelete = false, bool mergeBlocksAfterDelete = true, bool expandForSpecialElements = false, bool sanitizeMarkup = true, InputEvent::InputType inputType = InputEvent::InputType::None)
     {
         return new DeleteSelectionCommand(selection, smartDelete, mergeBlocksAfterDelete, expandForSpecialElements, sanitizeMarkup, inputType);
     }
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
-    DeleteSelectionCommand(Document&, bool smartDelete, bool mergeBlocksAfterDelete, bool expandForSpecialElements, bool santizeMarkup, InputEvent::InputType);
+    DeleteSelectionCommand(Document&, bool smartDelete, bool mergeBlocksAfterDelete, bool expandForSpecialElements, bool santizeMarkup, InputEvent::InputType, const Position& referenceMovePosition);
     DeleteSelectionCommand(const VisibleSelection&, bool smartDelete, bool mergeBlocksAfterDelete, bool expandForSpecialElements, bool sanitizeMarkup, InputEvent::InputType);
 
     void doApply(EditingState*) override;
     InputEvent::InputType inputType() const override;
 
     bool preservesTypingStyle() const override;
 
     void initializeStartEnd(Position&, Position&);
     void setStartingSelectionOnSmartDelete(const Position&, const Position&);
     void initializePositionData(EditingState*);
@@ skipping 22 matching lines @@
 
     // This data is transient and should be cleared at the end of the doApply function.
     VisibleSelection m_selectionToDelete;
     Position m_upstreamStart;
     Position m_downstreamStart;
     Position m_upstreamEnd;
     Position m_downstreamEnd;
     Position m_endingPosition;
     Position m_leadingWhitespace;
     Position m_trailingWhitespace;
+    Position m_referenceMovePosition;
     Member<Node> m_startBlock;
     Member<Node> m_endBlock;
     Member<EditingStyle> m_typingStyle;
     Member<EditingStyle> m_deleteIntoBlockquoteStyle;
     Member<Element> m_startRoot;
     Member<Element> m_endRoot;
     Member<HTMLTableRowElement> m_startTableRow;
     Member<HTMLTableRowElement> m_endTableRow;
     Member<Node> m_temporaryPlaceholder;
 };
 
 } // namespace blink
 
 #endif // DeleteSelectionCommand_h