Rebase oscillator tests for Windows

The expected sine result was way off for some reason. I compared this
new result with the linux version and they now differ by at most 1 ulp

The other tests just differ by at most 1 ulp too. I think these differences are due to the switch to SSE2 on windows.

BUG=309197,320099
TBR=scottmg@chromium.org

Review URL: https://codereview.chromium.org/380903002

git-svn-id: svn://svn.chromium.org/blink/trunk@177859 bbb929c8-8fbe-4397-9dbb-9b2b20218538