Update Go deps

Change-Id: I6d6da06249927fc6fc579e44e4a3f3a82806d1b4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/227376
Reviewed-by: <skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com>
Commit-Queue: <skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com>
diff --git a/go.sum b/go.sum
index ff2451a..65163aa 100644
--- a/go.sum
+++ b/go.sum
@@ -691,6 +691,8 @@
 golang.org/x/tools v0.0.0-20190711191110-9a621aea19f8/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
 golang.org/x/tools v0.0.0-20190712213246-8b927904ee0d h1:JZPFnINSinLUdC0BJDoKhrky8niIzXMPIY2oR07+I+E=
 golang.org/x/tools v0.0.0-20190712213246-8b927904ee0d/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
+golang.org/x/tools v0.0.0-20190715044752-607ca053a137 h1:66qBt03VVO7qHSq0eBAYy9iD1y2EbXU09A+F5dZ0j8s=
+golang.org/x/tools v0.0.0-20190715044752-607ca053a137/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
 golang.org/x/tools/gopls v0.1.0/go.mod h1:p8Q0IUu6EEeGxqmoN/g6Et3gReLCGA7PtNRdyOxcWJE=
 golang.org/x/tools/gopls v0.1.1/go.mod h1:RYlHDmWjvTa1HuWNyEKa6/zzI2ums47cfsozmM0466w=
 golang.org/x/tools/gopls v0.1.3/go.mod h1:vrCQzOKxvuiZLjCKSmbbov04oeBQQOb4VQqwYK2PWIY=