All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=601798

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqLX3vgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6LzQsAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6LiFpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqMfFrgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqLWepwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqP_6ogsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6JqRoQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqJmYowoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqPr7vgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6NzHoQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqNWW9AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyOXxqAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6LjjtwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyOeDtAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6OznuQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6JqRoQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqP_64ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6LjUswkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6Or5qgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqN6XugsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqP-1qgkM


Bot(s) for this bug's original alert(s):

chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-nvidia
chromium-rel-win8-dual

Suspecting 587432023fe05823c2ecfbdc64d37657e76817f1 since it's the only thing touching media in the range. Bisect will confirm/deny.

alokp, can you take a look?

The patch referenced in comment #2 only touches chromecast files and that too is not enabled by default.

===== BISECT JOB RESULTS =====
Status: completed


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@385397         22.875595   0.596885    18          good
chromium@385402         22.708833   0.343519    18          bad

Bisect job ran on: win_8_perf_bisect
Bug ID: 601798

Test Command: .\src\out\Release\performance_browser_tests.exe --test-launcher-print-test-stdio=always --enable-gpu
Test Metric: TabCapturePerformance_comp_gpu_novsync_webrtc/CaptureSucceeded
Relative Change: 0.22%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_8_perf_bisect/builds/1907
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9015936723822581840


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=601798

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

This has gone green again.