Update errorprone to fix java 8 issues.

build/config/android/rules.gni

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//base/android/linker/config.gni")
 import("//build/config/android/config.gni")
 import("//build/config/android/internal_rules.gni")
 import("//third_party/android_platform/config.gni")
 import("//tools/grit/grit_rule.gni")
 
@@ skipping 1097 matching lines @@
     }
     if (defined(invoker.data_deps)) {
       data_deps = invoker.data_deps
     }
     if (defined(invoker.proguard_config)) {
       proguard_config = invoker.proguard_config
     }
     if (defined(invoker.proguard_preprocess)) {
       proguard_preprocess = invoker.proguard_preprocess
     }
+    if (defined(invoker.main_class)) {
+      main_class = invoker.main_class
+    }
   }
 }
 
 # Declare an Android library target
 #
 # This target creates an Android library containing java code and Android
 # resources.
 #
 # Variables
 #   deps: Specifies the dependencies of this target. Java targets in this list
@@ skipping 1097 matching lines @@
 template("uiautomator_test") {
   set_sources_assignment_filter([])
   if (defined(invoker.testonly)) {
     testonly = invoker.testonly
   }
   assert(target_name != "")
   assert(invoker.deps != [] || true)
   group(target_name) {
   }
 }