Expand FrameSeleciton::isRange() to increase chances of hoisting update layout

third_party/WebKit/Source/core/page/DragController.cpp

 /*
  * Copyright (C) 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Google Inc.
  *
  * 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
@@ skipping 181 matching lines @@
     dragSourceType = DragSourceType::PlainTextSource;
     return createFragmentFromText(EphemeralRange(context),
                                   dragData->asPlainText());
   }
 
   return nullptr;
 }
 
 bool DragController::dragIsMove(FrameSelection& selection, DragData* dragData) {
   return m_documentUnderMouse == m_dragInitiator &&
-         selection.isContentEditable() && selection.isRange() &&
+         selection.isContentEditable() &&
+         selection.computeVisibleSelectionInDOMTreeDeprecated().isRange() &&
          !isCopyKeyDown(dragData);
 }
 
 // FIXME: This method is poorly named.  We're just clearing the selection from
 // the document this drag is exiting.
 void DragController::cancelDrag() {
   m_page->dragCaret().clear();
 }
 
 void DragController::dragEnded() {
@@ skipping 1030 matching lines @@
 
 DEFINE_TRACE(DragController) {
   visitor->trace(m_page);
   visitor->trace(m_documentUnderMouse);
   visitor->trace(m_dragInitiator);
   visitor->trace(m_dragState);
   visitor->trace(m_fileInputElementUnderMouse);
 }
 
 }  // namespace blink