[telemetry] Change WinRing0 calling convention.

[telemetry] Change WinRing0 calling convention.

To fix the Windows XP perf bots specifically.


BUG=336558
TEST=None.
TBR=tonyg
NOTRY=True

Committed: https://crrev.com/6dcf1db7a5d260c17b172bc745b89184617ef53f
Cr-Commit-Position: refs/heads/master@{#293284}

[dtu, 2014-09-04 09:38:41]

The CQ bit was checked by dtu@chromium.org

[commit-bot: I haz the power, 2014-09-04 09:40:14]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/dtu@chromium.org/537213004/1

[commit-bot: I haz the power, 2014-09-04 09:42:15]

Committed patchset #1 (id:1) as d6fccba18f7ea6064355d7c424f09cf722d3b432

[commit-bot: I haz the power, 2014-09-10 03:30:53]

Patchset 1 (id:??) landed as
https://crrev.com/6dcf1db7a5d260c17b172bc745b89184617ef53f
Cr-Commit-Position: refs/heads/master@{#293284}