When measuring text in kerning mode, we currently add the word spacing to every wordMeasurement. However, not all are actual word breaks.
Created attachment 193449 [details]
Created attachment 193461 [details]
The patch doesn't contain the test, only the ChangeLog for LayoutTests.
Created attachment 193602 [details]
Comment on attachment 193602 [details]
Looks good. Thanks for fixing this!
Committed r146087: <http://trac.webkit.org/changeset/146087>