GN: Mark run_findbugs as used in java_library_impl

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")
 import("//build/config/zip.gni")
 import("//third_party/ijar/ijar.gni")
 
 assert(is_android)
 
@@ skipping 471 matching lines @@
 template("package_apk") {
   action(target_name) {
     forward_variables_from(invoker,
                            [
                              "deps",
                              "public_deps",
                              "testonly",
                            ])
     script = "//build/android/gyp/apkbuilder.py"
     depfile = "$target_gen_dir/$target_name.d"
-    data_deps = [ "//tools/android/md5sum" ]  # Used when deploying APKs
+    data_deps = [
+      "//tools/android/md5sum",
+    ]  # Used when deploying APKs
 
     inputs = [
       invoker.resource_packaged_apk_path,
     ]
     if (defined(invoker.dex_path)) {
       inputs += [ invoker.dex_path ]
     }
 
     outputs = [
       depfile,
@@ skipping 673 matching lines @@
   _final_datadeps = []
   if (defined(invoker.datadeps)) {
     _final_datadeps = invoker.datadeps
   }
 
   _supports_android =
       defined(invoker.supports_android) && invoker.supports_android
   _requires_android =
       defined(invoker.requires_android) && invoker.requires_android
   assert(_requires_android || true)  # Mark as used.
+  _run_findbugs = defined(invoker.run_findbugs) && invoker.run_findbugs
+  assert(_run_findbugs || true)  # Mark as used.
 
   if (_supports_android) {
     _dex_path = _base_path + ".dex.jar"
     if (defined(invoker.dex_path)) {
       _dex_path = invoker.dex_path
     }
   }
 
   # Define build_config_deps which will be a list of targets required to
   # build the _build_config.
@@ skipping 119 matching lines @@
         jar_path = _jar_path
         java_files = _java_files
         deps = [
           ":$_compile_java_target",
         ]
         if (defined(invoker.deps)) {
           deps += invoker.deps
         }
       }
 
-      if (defined(invoker.run_findbugs)) {
-        run_findbugs = invoker.run_findbugs
-      }
-      if (run_findbugs) {
+      if (_run_findbugs) {
         _final_datadeps += [ ":${_template_name}__findbugs" ]
         findbugs("${_template_name}__findbugs") {
           build_config = _build_config
           jar_path = _jar_path
           deps = [
             ":$_compile_java_target",
           ]
         }
       }
     }
@@ skipping 296 matching lines @@
     ]
     args = [
       "--depfile",
       rebase_path(depfile, root_build_dir),
       "--script-output-path",
       rebase_path(generated_script, root_build_dir),
     ]
     args += test_runner_args
   }
 }