diff --git a/go.sum b/go.sum
index 0a00f26..156626d 100644
--- a/go.sum
+++ b/go.sum
@@ -25,6 +25,7 @@
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
 cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
+cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
 cloud.google.com/go/bigtable v1.0.0 h1:2DCxzxiuoWubL6J0yl4rUtFtIJAX566mcefQS3xy6us=
 cloud.google.com/go/bigtable v1.0.0/go.mod h1:N+NeT8ICfOM1Ek4CeP03mSESb2x+qLkSC0+CRBEsvAA=
 cloud.google.com/go/bigtable v1.2.0 h1:F4cCmA4nuV84V5zYQ3MKY+M1Cw1avHDuf3S/LcZPA9c=
@@ -133,6 +134,8 @@
 github.com/aws/aws-sdk-go v1.29.11/go.mod h1:1KvfttTE3SPKMpo8g2c6jL3ZKfXtFvKscTgahTma5Xg=
 github.com/aws/aws-sdk-go v1.29.12 h1:V2Z0/kQZsogK/KqkGkgcbcFh1pH7fhXWY+6aTty2G3k=
 github.com/aws/aws-sdk-go v1.29.12/go.mod h1:1KvfttTE3SPKMpo8g2c6jL3ZKfXtFvKscTgahTma5Xg=
+github.com/aws/aws-sdk-go v1.29.14 h1:NToqC5ZQ2RaxxSPp9szuQimWQWPG++ITwXbklq/FN7c=
+github.com/aws/aws-sdk-go v1.29.14/go.mod h1:1KvfttTE3SPKMpo8g2c6jL3ZKfXtFvKscTgahTma5Xg=
 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=
@@ -746,6 +749,8 @@
 go.skia.org/infra v0.0.0-20200228015416-23ac381019e1/go.mod h1:Q7VSR6HGfS4BYeYdcxK4h/2czesB1z172RRzOaAE72Y=
 go.skia.org/infra v0.0.0-20200229015409-9e1ef871a139 h1:y3S+8Eazyk8GGNUfvJlIygkGs5odKZ79rIkuMtGKuxo=
 go.skia.org/infra v0.0.0-20200229015409-9e1ef871a139/go.mod h1:wg6bqCJVfc9YVAYMmeDG/tKou7mansVTe7KmDVwWrlE=
+go.skia.org/infra v0.0.0-20200302052213-5f2f3e5ddd66 h1:v3cWcYYuHcVcUQp2ftd7j5OyipUDStNEL/7Wh27zbNM=
+go.skia.org/infra v0.0.0-20200302052213-5f2f3e5ddd66/go.mod h1:+7VADOAo2M20FUYdGF2utK5Yz40VdPRDLgJxoOTOtp0=
 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=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
@@ -860,6 +865,8 @@
 golang.org/x/net v0.0.0-20200225223329-5d076fcf07a8/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b h1:0mm1VjtFUOIlE1SbDlwjYaDxZVDP2S5ou6y0gSgXHu8=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200301022130-244492dfa37a h1:GuSPYbZzB5/dcLNCwLQLsg3obCJtX9IJhpXkvY7kzk0=
+golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181106182150-f42d05182288/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -920,6 +927,10 @@
 golang.org/x/sys v0.0.0-20200219091948-cb0a6d8edb6c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae h1:/WDfKMnPU+m5M4xB+6x4kaepxRw6jWvR5iDRdvjHgy8=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200301204400-5d559ad92b82 h1:lMQVwSjnOFtj3Ssuec21gK8stJac9xnIo2CjVk2cczw=
+golang.org/x/sys v0.0.0-20200301204400-5d559ad92b82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200302083256-062a44052db1 h1:trYYa2hBaTeei9Bq2uAXwsfNYW4r+xD/tztngRsT0cQ=
+golang.org/x/sys v0.0.0-20200302083256-062a44052db1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.0.0-20160726164857-2910a502d2bf/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -1016,6 +1027,8 @@
 golang.org/x/tools v0.0.0-20200227222343-706bc42d1f0d/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200228224639-71482053b885 h1:y09Juz/HD0YjGlyEd4bLUWG0s8Yx6iPniPqUGzUxNrU=
 golang.org/x/tools v0.0.0-20200228224639-71482053b885/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20200301222351-066e0c02454c h1:FD7jysxM+EJqg5UYYy3XYDsAiUickFsn4UiaanJkf8c=
+golang.org/x/tools v0.0.0-20200301222351-066e0c02454c/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=