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

third_party/WebKit/Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1068 matching lines @@
 void WebLocalFrameImpl::removeSpellingMarkers() {
   frame()->spellChecker().removeSpellingMarkers();
 }
 
 bool WebLocalFrameImpl::hasSelection() const {
   WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame());
   if (pluginContainer)
     return pluginContainer->plugin()->hasSelection();
 
   // frame()->selection()->isNone() never returns true.
-  return frame()->selection().start() !=
+  return frame()
+             ->selection()
+             .computeVisibleSelectionInDOMTreeDeprecated()
+             .start() !=
          frame()
              ->selection()
              .computeVisibleSelectionInDOMTreeDeprecated()
              .end();
 }
 
 WebRange WebLocalFrameImpl::selectionRange() const {
   // TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
   // needs to be audited.  See http://crbug.com/590369 for more details.
   frame()->document()->updateStyleAndLayoutIgnorePendingStylesheets();
@@ skipping 1340 matching lines @@
         createMarkup(startPosition, endPosition, AnnotateForInterchange,
                      ConvertBlocksToInlines::NotConvert, ResolveNonLocalURLs);
   } else {
     clipHtml =
         createMarkup(endPosition, startPosition, AnnotateForInterchange,
                      ConvertBlocksToInlines::NotConvert, ResolveNonLocalURLs);
   }
 }
 
 }  // namespace blink