[telemetry] Disable IPPET on Windows 7.

[telemetry] Disable IPPET on Windows 7.

It's flaky on Windows 7, but appears to be okay on Windows 8.


BUG=336558
TEST=None.
TBR=tonyg

Committed: https://crrev.com/bd05f75db5f6982fe489b5264e5c1b53629d9b4b
Cr-Commit-Position: refs/heads/master@{#292339}

[dtu, 2014-08-28 05:16:28]

The CQ bit was checked by dtu@chromium.org

[commit-bot: I haz the power, 2014-08-28 05:17:40]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/dtu@chromium.org/510263002/1

[commit-bot: I haz the power, 2014-08-28 06:19:33]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_gpu on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/linux_gpu/builds/...)
  android_aosp on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_aosp/bu...)
  android_arm64_dbg_recipe on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_arm64_d...)
  android_chromium_gn_compile_rel on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_chromiu...)
  android_clang_dbg_recipe on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_clang_d...)
  chromium_presubmit on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)
  linux_chromium_chromeos_rel_swarming on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_gn_rel on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_rel_swarming on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  win_chromium_compile_dbg on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_comp...)

[commit-bot: I haz the power, 2014-08-28 07:10:32]

Committed patchset #1 (id:1) as a058ebbb40b3bd89355cd2c315585fda4b7284b9

[commit-bot: I haz the power, 2014-09-10 02:58:10]

Patchset 1 (id:??) landed as
https://crrev.com/bd05f75db5f6982fe489b5264e5c1b53629d9b4b
Cr-Commit-Position: refs/heads/master@{#292339}