diff --git a/go.sum b/go.sum
index 9fa2bdb..3c51e7b 100644
--- a/go.sum
+++ b/go.sum
@@ -32,6 +32,7 @@
 cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
 cloud.google.com/go/bigquery v1.6.0 h1:ajp/DjpiCHO71SyIhwb83YsUGAyWuzVvMko+9xCsJLw=
 cloud.google.com/go/bigquery v1.6.0/go.mod h1:hyFDG0qSGdHNz8Q6nDN8rYIkld0q/+5uBZaelxiDLfE=
+cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
 cloud.google.com/go/bigtable v1.3.0 h1:PAplkJLXheOLlK5PPyy4/HXtPzHn+1/LaYDWIeGxnio=
 cloud.google.com/go/bigtable v1.3.0/go.mod h1:z5EyKrPE8OQmeg4h5MNdKvuSnI9CCT49Ki3f23aBzio=
 cloud.google.com/go/datastore v1.0.0 h1:Kt+gOPPp2LEPWp8CSfxhsM8ik9CcyE/gYu+0r+RnZvM=
@@ -123,6 +124,8 @@
 github.com/aws/aws-sdk-go v1.30.11/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
 github.com/aws/aws-sdk-go v1.30.21 h1:19EO1Jr80+jLwJyITzH8c79C/6EwY5mMyasqDbBiCuc=
 github.com/aws/aws-sdk-go v1.30.21/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
+github.com/aws/aws-sdk-go v1.30.22 h1:wImJ8jQrplgmxaTeUY7FrJFn4te/VtWq+mmmJ1TnWAg=
+github.com/aws/aws-sdk-go v1.30.22/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
@@ -725,6 +728,8 @@
 go.chromium.org/luci v0.0.0-20200506070131-472a6cc95073/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.chromium.org/luci v0.0.0-20200507011831-6268d5c70562 h1:Y6PX0bTwh3e+V9mEK5TRaizkPWpktGCKpW5d6Nlr0SE=
 go.chromium.org/luci v0.0.0-20200507011831-6268d5c70562/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
+go.chromium.org/luci v0.0.0-20200508033456-d92e37c72a39 h1:8bVDcgbgWctCfYjQEdTri9+7d2ASnraE6N+9NVlMdsI=
+go.chromium.org/luci v0.0.0-20200508033456-d92e37c72a39/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.mongodb.org/mongo-driver v1.1.0/go.mod h1:u7ryQJ+DOzQmeO7zB6MHyr8jkEQvC8vH7qLUO4lqsUM=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
@@ -759,6 +764,8 @@
 go.skia.org/infra v0.0.0-20200505190403-4f948f03bc1d/go.mod h1:gd0b6Q/5kysjM1NolzPHnccv4P4osplGQ2C21dsJuJc=
 go.skia.org/infra v0.0.0-20200506175242-54a7277fb8ba h1:vJpgc1XCNYHpKtzrc+aQAb5UKrnyeNAoVcJB6ZhGH5M=
 go.skia.org/infra v0.0.0-20200506175242-54a7277fb8ba/go.mod h1:6JuLy3GfEHbd0w7OY71clI/v95WahXNTUoIqoHzgz4E=
+go.skia.org/infra v0.0.0-20200507202525-244ffab1cfff h1:gFh9UAm+FIPtRaEoJJusKcZCRhSR1ivF53NnWhYgbO4=
+go.skia.org/infra v0.0.0-20200507202525-244ffab1cfff/go.mod h1:r7NNPvrakvWrvwjbahbnoAUe6ObgW+is42Jn5W/O3vs=
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
@@ -1057,6 +1064,8 @@
 golang.org/x/tools v0.0.0-20200505023115-26f46d2f7ef8/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20200507033352-be0c89d0d3ec h1:dDlhlZjimomZWexPwtmxHrAo2i0/WE86DxYyvtSQTwY=
 golang.org/x/tools v0.0.0-20200507033352-be0c89d0d3ec/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
+golang.org/x/tools v0.0.0-20200507205054-480da3ebd79c h1:TDspWmUQsjdWzrHnd5imfaJSfhR4AO/R7kG++T2cONw=
+golang.org/x/tools v0.0.0-20200507205054-480da3ebd79c/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -1154,6 +1163,8 @@
 google.golang.org/genproto v0.0.0-20200429120912-1f37eeb960b2/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200430143042-b979b6f78d84 h1:pSLkPbrjnPyLDYUO2VM9mDLqo2V6CFBY84lFSZAfoi4=
 google.golang.org/genproto v0.0.0-20200430143042-b979b6f78d84/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
+google.golang.org/genproto v0.0.0-20200507105951-43844f6eee31 h1:Bz1qTn2YRWV+9OKJtxHJiQKCiXIdf+kwuKXdt9cBxyU=
+google.golang.org/genproto v0.0.0-20200507105951-43844f6eee31/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1 h1:Hz2g2wirWK7H0qIIhGIqRGTuMwTE8HEKFnDZZ7lm9NU=