[pointerevents-tests] PointerEvents: update touch-action tests to be more reliable (#1299)

This change (committing on behalf of @EvgenyAgafonchikov ) updates the remaining touch-action tests that were using event counts to try to surmise scroll attempts in regions where touch actions are prohibited. These now use the "Complete" button approach, which makes them much more reliable than a magic number for expected event counts.  

View on GitHub: https://github.com/w3c/web-platform-tests/pull/1299

Received on Tuesday, 21 October 2014 00:42:43 UTC