Fixs in perf.dart: strong-clean, avoid deprecated apis, minor output tweaks

Fixs in perf.dart: strong-clean, avoid deprecated apis, minor output tweaks

R=brianwilkerson@google.com, paulberry@google.com

Committed: https://github.com/dart-lang/sdk/commit/b9a5c7732122f3fa1a6639c3ea5bb7110275d549

[Siggi Cherem (dart-lang), 2016-09-16 16:33:46]

Description was changed from

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Fix warning in perf.dart, also do some minor tweaks to the output
==========

to

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Fixs in perf.dart: strong-clean, avoid deprecated apis, minor output tweaks
==========

[Siggi Cherem (dart-lang), 2016-09-16 16:33:51]

Patchset #1 (id:1) has been deleted

[Siggi Cherem (dart-lang), 2016-09-16 16:34:22]

sigmund@google.com changed reviewers:
+ brianwilkerson@google.com, paulberry@google.com

[Brian Wilkerson, 2016-09-16 16:35:43]

lgtm

[Paul Berry, 2016-09-16 16:37:43]

lgtm

[Siggi Cherem (dart-lang), 2016-09-16 16:57:10]

Description was changed from

==========
Fixs in perf.dart: strong-clean, avoid deprecated apis, minor output tweaks
==========

to

==========
Fixs in perf.dart: strong-clean, avoid deprecated apis, minor output tweaks

R=brianwilkerson@google.com, paulberry@google.com

Committed:
https://github.com/dart-lang/sdk/commit/b9a5c7732122f3fa1a6639c3ea5bb7110275d549
==========

[Siggi Cherem (dart-lang), 2016-09-16 16:57:11]

Committed patchset #1 (id:20001) manually as
b9a5c7732122f3fa1a6639c3ea5bb7110275d549 (presubmit successful).