The tests are added at https://chromium.googlesource.com/chromium/src/+/232e21aa831d94dc0895f438018aaf53b8c51b02.

Add sheriffs to CC

Same errors on Linux https://build.chromium.org/p/chromium.linux/builders/Linux%20Tests%20%28dbg%29%281%29%2832%29/builds/43806

It looks like opening files failed:

[ RUN      ] SSLUIMITMSoftwareTest.EnterpriseManaged
[54990:57347:0829/213031.655541:WARNING:mac_util.mm(222)] Failed to set backup exclusion for file '/private/var/folders/9x/6c6sv3cj4j53wzpzthbp4ksm0000gm/T/.org.chromium.Chromium.g5oazj/dkoNSl7/Default/History': Error Domain=NSOSStatusErrorDomain Code=-50 "The operation couldn?t be completed. (OSStatus error -50.)" (paramErr: error in user parameter list) (-50)
[54990:13831:0829/213031.689167:WARNING:notification_platform_bridge_mac.mm(514)] AlertNotificationService: XPC connection invalidated.
[55012:771:0829/213031.955586:WARNING:vt_video_decode_accelerator_mac.cc(178)] Failed to create VTDecompressionSession: Error Domain=NSOSStatusErrorDomain Code=-8973 "The operation couldn?t be completed. (OSStatus error -8973.)" (codecOpenErr) (-8973)
[55012:771:0829/213031.957453:WARNING:vt_video_decode_accelerator_mac.cc(200)] Failed to create hardware VideoToolbox session
[55012:771:0829/213032.053562:ERROR:vt_video_encode_accelerator_mac.cc(495)]  VTCompressionSessionCreate failed: -12908
[54990:57347:0829/213032.174573:WARNING:mac_util.mm(222)] Failed to set backup exclusion for file '/private/var/folders/9x/6c6sv3cj4j53wzpzthbp4ksm0000gm/T/.org.chromium.Chromium.g5oazj/dkoNSl7/Default/Favicons': Error Domain=NSOSStatusErrorDomain Code=-50 "The operation couldn?t be completed. (OSStatus error -50.)" (paramErr: error in user parameter list) (-50)
[54990:55043:0829/213032.818128:WARNING:simple_synchronous_entry.cc(1105)] Could not open platform files for entry.
[54990:771:0829/213033.711466:FATAL:l10n_util.cc(733)] Check failed: std::string::npos == pos (18446744073709551615 vs. 155) Unexpectedly found a $2 placeholder in A root certificate for "$1" is required but isn?t installed. Your IT administrator should look at configuration instructions for "$1" to fix this problem. $2

Now disabling the tests https://bugs.chromium.org/p/chromium/issues/detail?id=760438

https://chromium-review.googlesource.com/c/chromium/src/+/641016

I confirmed that https://chromium-review.googlesource.com/c/chromium/src/+/636749 broke out/Debug/browser_tests.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c25f1aa4f7c5c0598c679b9383122789cd45f2b8

commit c25f1aa4f7c5c0598c679b9383122789cd45f2b8
Author: Hajime Hoshi <hajimehoshi@chromium.org>
Date: Wed Aug 30 06:48:38 2017

Disable tests of SSLUIMITMSoftwareTest that failed on some bots

TBR=hajimehoshi@chromium.org

Bug:  760438 
Change-Id: I234ec99d1440b64521e3a13f8b05c4c539c1a0fb
Reviewed-on: https://chromium-review.googlesource.com/641016
Reviewed-by: Hajime Hoshi <hajimehoshi@chromium.org>
Commit-Queue: Hajime Hoshi <hajimehoshi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#498384}
[modify] https://crrev.com/c25f1aa4f7c5c0598c679b9383122789cd45f2b8/chrome/browser/ssl/ssl_browser_tests.cc

CC the current sheriffs

Please triage.
Removing sheriff label since this is no longer causing bot failures, but the test should be re-enabled.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/972c76b69a7eb0bb02a6c051df1ce4b659b1e202

commit 972c76b69a7eb0bb02a6c051df1ce4b659b1e202
Author: Sasha Perigo <sperigo@chromium.org>
Date: Wed Aug 30 20:29:47 2017

Fix and re-enable broken SSLUIMITMSoftwareTest browser tests.

Bug:  crbug.com/760438 
Change-Id: I8470d74fbc68948167df5a06bc35d7048e3d1a79
Reviewed-on: https://chromium-review.googlesource.com/643343
Reviewed-by: Mustafa Emre Acer <meacer@chromium.org>
Commit-Queue: Sasha Perigo <sperigo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#498591}
[modify] https://crrev.com/972c76b69a7eb0bb02a6c051df1ce4b659b1e202/chrome/browser/ssl/ssl_browser_tests.cc
[modify] https://crrev.com/972c76b69a7eb0bb02a6c051df1ce4b659b1e202/components/security_interstitials_strings.grdp

I think this is fixed by sperigo@