Add missing rules_java loads (bazelbuild#670)

Author: gkdn

closure/stylesheets/BUILD

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
+load("@rules_java//java:defs.bzl", "java_binary")
 
 package(default_visibility = ["//visibility:public"])
 

javatests/io/bazel/rules/closure/webfiles/BUILD

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-load("@rules_java//java:defs.bzl", "java_test")
+load("@rules_java//java:defs.bzl", "java_library", "java_test")
 
 licenses(["notice"])