Make non-null VisibleSelections creatable only by createVisibleSelection[Deprecated]

third_party/WebKit/Source/web/mac/WebSubstringUtil.mm

 /*
  * Copyright (C) 2005, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2011 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.
@@ skipping 131 matching lines @@
     HitTestResult result = static_cast<WebFrameWidgetBase*>(frameWidget)->coreHitTestResultAt(point);
 
     if (!result.innerNode())
         return nil;
     LocalFrame* frame = result.innerNode()->document().frame();
     EphemeralRange range = frame->rangeForPoint(result.roundedPointInInnerNodeFrame());
     if (range.isNull())
         return nil;
 
     // Expand to word under point.
-    VisibleSelection selection(range);
+    VisibleSelection selection = createVisibleSelectionDeprecated(range);
     selection.expandUsingGranularity(WordGranularity);
     const EphemeralRange wordRange = selection.toNormalizedEphemeralRange();
 
     // Convert to NSAttributedString.
     NSAttributedString* string = attributedSubstringFromRange(wordRange);
     baselinePoint = getBaselinePoint(frame->view(), wordRange, string);
     return string;
 }
 
 NSAttributedString* WebSubstringUtil::attributedSubstringInRange(WebLocalFrame* webFrame, size_t location, size_t length)
@@ skipping 14 matching lines @@
     if (ephemeralRange.isNull())
         return nil;
 
     NSAttributedString* result = attributedSubstringFromRange(ephemeralRange);
     if (baselinePoint)
         *baselinePoint = getBaselinePoint(frame->view(), ephemeralRange, result);
     return result;
 }
 
 } // namespace blink