Disable flaky CopyBetweenWindows/FileManagerBrowserTest.Test/4.

Disable flaky CopyBetweenWindows/FileManagerBrowserTest.Test/4.

Has been failing every 3rd or 4th pass on the waterfall.

BUG=380339
NOTRY=true
TBR=kinaba@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=274619

[Scott Hess - ex-Googler, 2014-06-03 20:43:23]

The CQ bit was checked by shess@chromium.org

[commit-bot: I haz the power, 2014-06-03 20:46:25]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/shess@chromium.org/310923002/1

[commit-bot: I haz the power, 2014-06-03 20:46:25]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-06-03 20:46:26]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[Scott Hess - ex-Googler, 2014-06-03 20:49:20]

The CQ bit was checked by shess@chromium.org

[commit-bot: I haz the power, 2014-06-03 20:50:49]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/shess@chromium.org/310923002/1

[Scott Hess - ex-Googler, 2014-06-03 20:56:09]

The CQ bit was unchecked by shess@chromium.org

[Scott Hess - ex-Googler, 2014-06-03 20:56:13]

The CQ bit was checked by shess@chromium.org

[commit-bot: I haz the power, 2014-06-03 20:57:02]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/shess@chromium.org/310923002/1

[commit-bot: I haz the power, 2014-06-03 20:58:44]

Change committed as 274619