WTF::notFound looks too much like a local variable.

Source/web/WebFrameImpl.cpp

Index: Source/web/WebFrameImpl.cpp
diff --git a/Source/web/WebFrameImpl.cpp b/Source/web/WebFrameImpl.cpp
index 6cfb39d7ab9b68c61ccfe700216627a9f822023a..05aeeb77bab41411be8defa6d70162471c2228cf 100644
--- a/Source/web/WebFrameImpl.cpp
+++ b/Source/web/WebFrameImpl.cpp
@@ -1126,13 +1126,13 @@ bool WebFrameImpl::firstRectForCharacterRange(unsigned location, unsigned length
 size_t WebFrameImpl::characterIndexForPoint(const WebPoint& webPoint) const
 {
     if (!frame())
-        return notFound;
+        return kNotFound;
 
     IntPoint point = frame()->view()->windowToContents(webPoint);
     HitTestResult result = frame()->eventHandler()->hitTestResultAtPoint(point, HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::DisallowShadowContent);
     RefPtr<Range> range = frame()->rangeForPoint(result.roundedPointInInnerNodeFrame());
     if (!range)
-        return notFound;
+        return kNotFound;
 
     size_t location, length;
     TextIterator::getLocationAndLengthFromRange(frame()->selection().rootEditableElementOrDocumentElement(), range.get(), location, length);