pub/oauth2 flake on pub windows bot

[ricowind]

This test flaked on the windows builder:
http://build.chromium.org/p/client.dart/builders/pub-win/builds/856/steps/pub%20tests%20failures/logs/stdio

Bob: Could you take a look.

[munificent]

Will do, thanks!

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Added this to the M2 milestone.
Added Accepted label.

[munificent]

Added Started label.

[munificent]

Added Duplicate label.
Marked as being merged into #7016.

[DartBot]

This issue has been moved to dart-lang/pub#330.