Add additional_jar_files to inputs for java_library targets.

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/sanitizers/sanitizers.gni")
 
 assert(is_android)
 
 # These identify targets that have .build_config files (except for android_apk,
@@ skipping 2031 matching lines @@
       }
       foreach(e, _provider_configurations) {
         args += [ "--provider-configuration=" + rebase_path(e, root_build_dir) ]
       }
       foreach(e, _processors) {
         args += [ "--processor=" + e ]
       }
       foreach(e, _processor_args) {
         args += [ "--processor-arg=" + e ]
       }
-      foreach(e, _additional_jar_files) {
-        args += [ "--additional-jar-file=" + e ]
+      foreach(file_tuple, _additional_jar_files) {
+        # Each element is of length two, [ path_to_file, path_to_put_in_jar ]
+        inputs += [ file_tuple[0] ]
+        args +=
+            [ "--additional-jar-file=" + file_tuple[0] + ":" + file_tuple[1] ]
       }
       if (invoker.java_files != []) {
         args += [ "@" + rebase_path(invoker.java_sources_file, root_build_dir) ]
       }
     }
 
     process_java_prebuilt(_process_prebuilt_target_name) {
       forward_variables_from(invoker, [ "jar_excluded_patterns" ])
       build_config = _build_config
       input_jar_path = _javac_jar_path
@@ skipping 553 matching lines @@
       outputs = [
         depfile,
         invoker.out_manifest,
       ]
       inputs = [
         invoker.main_manifest,
       ]
     }
   }
 }