Disable flaky telemetry_unittest - InspectorNetworkTabTest.testHTTPResponseTimelineRecorder

Disable flaky telemetry_unittest - InspectorNetworkTabTest.testHTTPResponseTimelineRecorder

InspectorNetworkTabTest.testHTTPResponseTimelineRecorder is flaky on
Win 7 Tests, it fails 11 out of the last 14 runs.  Disabling for now.

BUG=455269
TBR=bolian
NOTRY=true

Committed: https://crrev.com/3197f15cab79f95db67aad31cf60980639743c0b
Cr-Commit-Position: refs/heads/master@{#314578}

[kelvinp, 2015-02-04 17:45:51]

The CQ bit was checked by kelvinp@chromium.org

[commit-bot: I haz the power, 2015-02-04 17:46:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/898903003/1

[kelvinp, 2015-02-04 17:48:58]

The CQ bit was unchecked by kelvinp@chromium.org

[kelvinp, 2015-02-04 17:49:15]

The CQ bit was checked by kelvinp@chromium.org

[commit-bot: I haz the power, 2015-02-04 17:50:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/898903003/1

[commit-bot: I haz the power, 2015-02-04 17:56:34]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-04 17:58:43]

Patchset 1 (id:??) landed as
https://crrev.com/3197f15cab79f95db67aad31cf60980639743c0b
Cr-Commit-Position: refs/heads/master@{#314578}