Update errorprone to fix java 8 issues.

build/config/android/rules.gni

Index: build/config/android/rules.gni
diff --git a/build/config/android/rules.gni b/build/config/android/rules.gni
index f627e43699ec53c375921868f619e07dd789f2cf..4358972db213d41a7fc3b687a5a973ee305a65e1 100644
--- a/build/config/android/rules.gni
+++ b/build/config/android/rules.gni
@@ -1116,6 +1116,9 @@ template("java_prebuilt") {
     if (defined(invoker.proguard_preprocess)) {
       proguard_preprocess = invoker.proguard_preprocess
     }
+    if (defined(invoker.main_class)) {

[jbudorick, 2015/08/23 02:56:08]

This will definitely need a rebase, and you'll probably be adding "main_class"
to a forward_variables_from call.

[mikecase (-- gone --), 2015/08/24 17:16:21]

It seems I can get rid of changing this file since java_prebuilt now just
forwards all of the variables.

+      main_class = invoker.main_class
+    }
   }
 }