[webaudio-tests] WebAudio: Fix for WaveShaper "huge curve" test (#1048)

The test previously had an even number of elements so the centre of the
curve was actually mid-way between 2 elements (so I was using the wrong
value used as the centre).  I have now changed the curve to be an odd
number of elements.

Firefox nightly now has 100% passes.

This Pull Request replaces #1041.  @chrislo requested that I spin-up a new branch and pull just a single commit.

View on GitHub: https://github.com/w3c/web-platform-tests/pull/1048

Received on Saturday, 7 June 2014 11:10:59 UTC