Upgrade gerrit_api and gerrit_polymer to 3.8.0

3.8.0 uses a new version of rules_nodejs.

Change-Id: Ib69eda763e0a0ae6bbdc739b82595072df51524d
diff --git a/gerrit_api.bzl b/gerrit_api.bzl
index 9f53466..9191c37 100644
--- a/gerrit_api.bzl
+++ b/gerrit_api.bzl
@@ -7,9 +7,9 @@
 gerrit_api is rule for fetching Gerrit plugin API using Bazel.
 """
 
-def gerrit_api(version = "3.7.0",
-               plugin_api_sha1 = "95ceafdaea39b21b0998d5b9109a2aaf4d4be83b",
-               acceptance_framework_sha1 = "1546658913a21996b7635f832aac44a7ca3554c6"):
+def gerrit_api(version = "3.8.0",
+               plugin_api_sha1 = "a62bffd9170d4550ada2f7b75e0bfa6de0ced441",
+               acceptance_framework_sha1 = "20f1f514e6a9d52c2132a2e220928629a38abab1"):
     gerrit_api_version(
         name = "gerrit_api_version",
         version = version,
diff --git a/gerrit_polymer.bzl b/gerrit_polymer.bzl
index b6baa60..883f519 100644
--- a/gerrit_polymer.bzl
+++ b/gerrit_polymer.bzl
@@ -3,6 +3,6 @@
 def gerrit_polymer():
     http_archive(
         name = "build_bazel_rules_nodejs",
-        sha256 = "0fad45a9bda7dc1990c47b002fd64f55041ea751fafc00cd34efb96107675778",
-        urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/5.5.0/rules_nodejs-5.5.0.tar.gz"],
+        sha256 = "c29944ba9b0b430aadcaf3bf2570fece6fc5ebfb76df145c6cdad40d65c20811",
+        urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/5.7.0/rules_nodejs-5.7.0.tar.gz"],
     )