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

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 186 matching lines @@
   return client;
 }
 
 EditorClient& Editor::client() const {
   if (Page* page = frame().page())
     return page->editorClient();
   return emptyEditorClient();
 }
 
 static bool isCaretAtStartOfWrappedLine(const FrameSelection& selection) {
-  if (!selection.isCaret())
+  if (!selection.computeVisibleSelectionInDOMTreeDeprecated().isCaret())
     return false;
   if (selection.affinity() != TextAffinity::Downstream)
     return false;
   const Position& position = selection.start();
   return !inSameLine(PositionWithAffinity(position, TextAffinity::Upstream),
                      PositionWithAffinity(position, TextAffinity::Downstream));
 }
 
 bool Editor::handleTextEvent(TextEvent* event) {
   // Default event handling for Drag and Drop will be handled by DragController
@@ skipping 1507 matching lines @@
 
 DEFINE_TRACE(Editor) {
   visitor->trace(m_frame);
   visitor->trace(m_lastEditCommand);
   visitor->trace(m_undoStack);
   visitor->trace(m_mark);
   visitor->trace(m_typingStyle);
 }
 
 }  // namespace blink