Remove obsolete HitTestResult.targetNode

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 96 matching lines @@
         position += numCharacters;
     }
     return [string autorelease];
 }
 
 namespace blink {
 
 NSAttributedString* WebSubstringUtil::attributedWordAtPoint(WebView* view, WebPoint point, WebPoint& baselinePoint)
 {
     HitTestResult result = static_cast<WebViewImpl*>(view)->coreHitTestResultAt(point);
-    if (!result.targetNode())
+    if (!result.innerNode())
       return nil;
-    LocalFrame* frame = result.targetNode()->document().frame();
+    LocalFrame* frame = result.innerNode()->document().frame();
     FrameView* frameView = frame->view();
 
     RefPtrWillBeRawPtr<Range> range = frame->rangeForPoint(result.roundedPointInInnerNodeFrame());
     if (!range)
         return nil;
 
     // Expand to word under point.
     VisibleSelection selection(range.get());
     selection.expandUsingGranularity(WordGranularity);
     RefPtrWillBeRawPtr<Range> wordRange = selection.toNormalizedRange();
@@ skipping 28 matching lines @@
     if (!editable)
         return nil;
     RefPtrWillBeRawPtr<Range> range(PlainTextRange(location, location + length).createRange(*editable));
     if (!range)
         return nil;
 
     return attributedSubstringFromRange(range.get());
 }
 
 } // namespace blink