Merge branch 'stable-3.2'

* stable-3.2:
  Convert to Polymer 3

Change-Id: I66363b9759d83d9b8e5ee8a458c5cae0108fe0aa
diff --git a/BUILD b/BUILD
index 8616c3c..5e186ed 100644
--- a/BUILD
+++ b/BUILD
@@ -1,4 +1,4 @@
-load("@npm_bazel_rollup//:index.bzl", "rollup_bundle")
+load("@npm//@bazel/rollup:index.bzl", "rollup_bundle")
 load("@rules_java//java:defs.bzl", "java_library")
 load("//tools/bzl:junit.bzl", "junit_tests")
 load(