[InputEvent] Support |deleteByCut|&|insertFromPaste| with |dataTransfer| field

third_party/WebKit/Source/core/editing/EditingUtilities.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 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 1873 matching lines @@
 DispatchEventResult dispatchBeforeInputEditorCommand(EventTarget* target, InputEvent::InputType inputType, const String& data, const RangeVector* ranges)
 {
     if (!RuntimeEnabledFeatures::inputEventEnabled())
         return DispatchEventResult::NotCanceled;
     if (!target)
         return DispatchEventResult::NotCanceled;
     InputEvent* beforeInputEvent = InputEvent::createBeforeInput(inputType, data, InputEvent::EventCancelable::IsCancelable, InputEvent::EventIsComposing::NotComposing, ranges);
     return target->dispatchEvent(beforeInputEvent);
 }
 
+DispatchEventResult dispatchBeforeInputDataTransfer(EventTarget* target, InputEvent::InputType inputType, DataTransfer* dataTransfer, const RangeVector* ranges)
+{
+    if (!RuntimeEnabledFeatures::inputEventEnabled())
+        return DispatchEventResult::NotCanceled;
+    if (!target)
+        return DispatchEventResult::NotCanceled;
+    InputEvent* beforeInputEvent = InputEvent::createBeforeInput(inputType, dataTransfer, InputEvent::EventCancelable::IsCancelable, InputEvent::EventIsComposing::NotComposing, ranges);
+    return target->dispatchEvent(beforeInputEvent);
+}
+
 InputEvent::InputType deletionInputTypeFromTextGranularity(DeleteDirection direction, TextGranularity granularity)
 {
     using InputType = InputEvent::InputType;
     switch (direction) {
     case DeleteDirection::Forward:
         if (granularity == WordGranularity)
             return InputType::DeleteWordForward;
         if (granularity == LineBoundary)
             return InputType::DeleteLineForward;
         return InputType::DeleteContentForward;
     case DeleteDirection::Backward:
         if (granularity == WordGranularity)
             return InputType::DeleteWordBackward;
         if (granularity == LineBoundary)
             return InputType::DeleteLineBackward;
         return InputType::DeleteContentBackward;
     default:
         return InputType::None;
     }
 }
 
 } // namespace blink