Use the Errorprone Compiler

build/config/android/internal_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("//build/config/android/config.gni")
 
 assert(is_android)
 
 rebased_android_sdk = rebase_path(android_sdk, root_build_dir)
 rebased_android_sdk_root = rebase_path(android_sdk_root, root_build_dir)
@@ skipping 891 matching lines @@
 
   _jar_excluded_patterns = []
   if (defined(invoker.jar_excluded_patterns)) {
     _jar_excluded_patterns += invoker.jar_excluded_patterns
   }
 
   _chromium_code = false
   if (defined(invoker.chromium_code)) {
     _chromium_code = invoker.chromium_code
   }
+
+  _enable_errorprone = use_errorprone_java_compiler
+  if (defined(invoker.enable_errorprone)) {
+    _enable_errorprone = invoker.enable_errorprone
+  }
+
   _manifest_entries = []
   if (defined(invoker.manifest_entries)) {
     _manifest_entries = invoker.manifest_entries
   }
 
   _srcjar_deps = []
   if (defined(invoker.srcjar_deps)) {
     _srcjar_deps += invoker.srcjar_deps
   }
 
@@ skipping 49 matching lines @@
       "--java-srcjars=$_rebased_java_srcjars",
       "--java-srcjars=@FileArg($_rebased_build_config:javac:srcjars)",
       "--jar-excluded-classes=$_jar_excluded_patterns",
     ]
     foreach(e, _manifest_entries) {
       args += [ "--manifest-entry=" + e ]
     }
     if (_chromium_code) {
       args += [ "--chromium-code=1" ]
     }
-
+    if (_enable_errorprone) {
+      deps += [ "//third_party/errorprone:chromium_errorprone" ]
+      args += [
+        "--use-errorprone-path",
+        "bin/chromium_errorprone",
+      ]
+    }
     args += rebase_path(_java_files, root_build_dir)
   }
 
   process_java_prebuilt(finish_target_name) {
     visibility = [ ":$final_target_name" ]
 
     build_config = _build_config
     input_jar_path = _intermediate_jar_path
     output_jar_path = _final_jar_path
     if (defined(invoker.proguard_preprocess) && invoker.proguard_preprocess) {
@@ skipping 129 matching lines @@
   _final_deps += [ ":$_compile_java_target" ]
   compile_java(_compile_java_target) {
     jar_path = _jar_path
     build_config = _build_config
     java_files = _java_files
     srcjar_deps = _srcjar_deps
     srcjars = _srcjars
     chromium_code = _chromium_code
     android = _requires_android
 
+    if (defined(invoker.enable_errorprone)) {
+      _enable_errorprone = invoker.enable_errorprone
+    }
     if (defined(invoker.jar_excluded_patterns)) {
       jar_excluded_patterns = invoker.jar_excluded_patterns
     }
     if (defined(invoker.proguard_preprocess)) {
       proguard_preprocess = invoker.proguard_preprocess
     }
     if (defined(invoker.proguard_config)) {
       proguard_config = invoker.proguard_config
     }
     if (defined(invoker.dist_jar_path)) {
@@ skipping 375 matching lines @@
     ]
     args = [
       "--depfile",
       rebase_path(depfile, root_build_dir),
       "--script-output-path",
       rebase_path(generated_script, root_build_dir),
     ]
     args += test_runner_args
   }
 }