All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=627527

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZymAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImpDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0Jsb2dnZXJfcmVmDAsSDVN0b3BwYWdlQWxlcnQYi9IYDA,agxzfmNocm9tZXBlcmZyrAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50In5DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0RvY3MgICgxIG9wZW4gZG9jdW1lbnQgdGFiKV9yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZylQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImdDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0VTUE5fcmVmDAsSDVN0b3BwYWdlQWxlcnQYi9IYDA,agxzfmNocm9tZXBlcmZymQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImtDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0ZhY2Vib29rX3JlZgwLEg1TdG9wcGFnZUFsZXJ0GIvSGAw,agxzfmNocm9tZXBlcmZymQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImtDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0xpbmtlZEluX3JlZgwLEg1TdG9wcGFnZUFsZXJ0GIvSGAw,agxzfmNocm9tZXBlcmZymgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImxDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1BpbnRlcmVzdF9yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZymAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImpDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1R3aXR0ZXJfcmVmDAsSDVN0b3BwYWdlQWxlcnQYi9IYDA,agxzfmNocm9tZXBlcmZynAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im5DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1dlYXRoZXIuY29tX3JlZgwLEg1TdG9wcGFnZUFsZXJ0GIvSGAw,agxzfmNocm9tZXBlcmZyogELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InRDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1dpa2lwZWRpYSAoMSB0YWIpX3JlZgwLEg1TdG9wcGFnZUFsZXJ0GIvSGAw,agxzfmNocm9tZXBlcmZymgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImxDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1dvcmRwcmVzc19yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZyqQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IntDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19hbnN3ZXJzLnlhaG9vLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZyowELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InVDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19ib29raW5nLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZypwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InlDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19nYW1lcy55YWhvby5jb21fcmVmDAsSDVN0b3BwYWdlQWxlcnQYi9IYDA,agxzfmNocm9tZXBlcmZypgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InhDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19uZXdzLnlhaG9vLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZyqQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IntDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19zcG9ydHMueWFob28uY29tX19yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZypgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InhDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX190ZWNoY3J1bmNoLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZypgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InhDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX193d3cuYW1hem9uLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZypAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InZDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX193d3cuZWJheS5jb21fcmVmDAsSDVN0b3BwYWdlQWxlcnQYi9IYDA,agxzfmNocm9tZXBlcmZypwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InlDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX193d3cueW91dHViZS5jb21fcmVmDAsSDVN0b3BwYWdlQWxlcnQYi9IYDA,agxzfmNocm9tZXBlcmZyrwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoABQ2hyb21pdW1QZXJmL2Nocm9taXVtLXJlbC1tYWMtaGRkL3Ntb290aG5lc3MudG9wXzI1X3Ntb290aC9maXJzdF9nZXN0dXJlX3Njcm9sbF91cGRhdGVfbGF0ZW5jeS9odHRwc19fX21haWwuZ29vZ2xlLmNvbV9tYWlsX19yZWYMCxINU3RvcHBhZ2VBbGVydBiL0hgM,agxzfmNocm9tZXBlcmZyxQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IpYBQ2hyb21pdW1QZXJmL2Nocm9taXVtLXJlbC1tYWMtaGRkL3Ntb290aG5lc3MudG9wXzI1X3Ntb290aC9maXJzdF9nZXN0dXJlX3Njcm9sbF91cGRhdGVfbGF0ZW5jeS9odHRwc19fX3BsdXMuZ29vZ2xlLmNvbV8xMTAwMzE1MzUwMjAwNTE3Nzg5ODlfcG9zdHNfcmVmDAsSDVN0b3BwYWdlQWxlcnQYi9IYDA


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

chromium-rel-mac-hdd

We have no ScrollUpdate slices for the failing pages:
e.g., failing: https://00e9e64bac63fcecf71d46fca31ddb629d550413cad717413e-apidata.googleusercontent.com/download/storage/v1_internal/b/chrome-telemetry-output/o/trace-file-id_12-2016-07-12_08-25-06-15788.html?qk=AD5uMEu7xKd8_W9P3BGx6WsFmezxfSEO6166rnVToF7Iqo-YL0pzwDZ6iybkslAzv8CT3Xz-OwmiGQlO4K_yC837AJSSe1qlE8XQIdWNbEevkI6LUSHPOJ7kn47IfAqhB0GU1Vpr26Zaf-TBnbgvdIys6e43UODKMwe5uFT3qcfh2_zP7kzmA3-qy7eqLxhUGo66eQ9SrTtOcT0nzmsGeS1Vo56GPTDDEPz1kbPQKV6ubX2mfr3dnLYrBxZYoQWAJBl_bl5BM0tfqSDstI3gfymF5-Qpmq5RcyCBXZEh1H3mHb2YWyt8NTQQoGhhyDW6-N7SlAGZmDd9FZVKxtw4-pSsgMEebA_FnpvZdSqqEY_QnJxtQmbyDd0LPualrW48h2-qjOqrwRQteCv3wSBrjd-iYOPG-q6eP73xeYbpc0nbgCMIRSeSaNqmg1n4Ip7vJXlSev47_lgWgurv95ee5ulTLRPZiFWJOrNmfmx5CQ4ajdagDugIYn9MEXZHZXjcZHZMIBeiqnD-yzyzWwdm1GIUewEhjYaSHx0FP1_bKRwoybjBagEHDrtLIaXqtk4mSELtwzCanoyHOkHj9UpnED0n2zgfOX4hDxth4nz7xIIj9xkU97Io2hn2PWZ9VhznB5CxxZ6RaFfcgdv1d2Dp8AtLO0gH-Z0c_A8GztmWHVOw51aey7CC5RfVq2ynTaYASjoj-mT764Yo7f52UHv8ye970Feoif3DXoOp7vW5M6kLhkIZ7qhx28WJmmjWLDpHtriDZ5QT1enkPWp9nWQL-nLIB0KT92HpCN6i7JOIesmU6eM8I2PGUFvYXSSKFeqXBT-t-TS6kM3_fwSYpNqvUV1JO1aDtamvaEP8tWvNYXgAdBsYzQRsP75zh-K7eBF22v0Db5a_PRD0

Passing:
https://00e9e64baceb74133be680a67408a1a21e4b1ca5177212570a-apidata.googleusercontent.com/download/storage/v1_internal/b/chrome-telemetry-output/o/trace-file-id_7-2016-07-12_08-24-59-34487.html?qk=AD5uMEuMQiJU9tzRtQ1zfXa4PbcmJuThr2tAL7RUye50SUHDVmXtOyrqk0kdKfcEnVq4MFwNgLvyTFY8TLChLq_0xa6yAl-SQWiKH2OirrCNHJvO3aLf64bRg5HA3X_ps2pkPrSf_p9vzDvsYCjEYroTBtWK_GWOupA62TOuYPvdk5IVhEh_6wDjEhxyWJhn7MSDV80pKU3XinA2vcbyv52uQDn8b6GIyK9kDIYwYhxmrUk8pvZ9DKH2QTVmKwt9XyC-z88mdMqgMTSsEMDfdxnFdyTb0VQs7oOY8h__Fz4SNvLRc4K59Jgac2imsTveeQnxI6BkhMqD88U2i9yi9Xs1_jXJSTRgDARd1aMb3INkQlN3Qu6d89HNq4SLjDlL_lVTLmH8yj_V7ZheSjwR5giquSWmGAakXO0ARVhNGNmPeTIytUo_szVNEcc8NVuOqlOKP7vwH1O1OevIm9TgIVCsQfGoMKXfoJHIMGEtR_CQnXqsE09yXrKuwHF_BIwhjM1t5TPQoojRItJeh_s-oQ2Ia626YwPiOr6Mx7h7Kbos_716SjJMwsmLneEBaUFgXkihovoptU3yUtOGhfUBP-MadpbTX9qBv4Wgatlp4VdxT6nSyfOa2fHAJlR6u_IGb680JF1relhaNHtpMZMNSKNfSZEh9KFiTousXLi0I9Tzs_G3HiESOG7fs76oxrtThnOPnyYlV0eT_2X3OmP0Y-jJQMe535PE27pkSbbOTMzUFdDXJSJ-QOUP4sjpyJ0IfvfpWOu-DrQR6yE1EBXbSjfdQd6sw7JgN4sINJkI2H8lWuyhAboXH7G8InYXth0u62lnAi1FOzBpMf4JKtrEGfRvH3rgBUF75rq9fAydSzrBDCrza2nO4ZAcsunMBhvOjFkrDauZG7KL

Unfortunately, this can't be bisected, as it's on the ref builds.

This has recovered.

It might have been related to the root scroller intervention?