Use _target_name instead of package_name for java*.gypi

third_party/jsr-305/jsr-305.gyp

 # Copyright (c) 2012 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.
 
 {
   'targets': [
     {
       'target_name': 'jsr_305_javalib',
       'type': 'none',
       'variables': {
-        'package_name': '<(_target_name)',
         # The sources are not located in a folder that is called src/, so we
         # need to set it in additional_src_dirs parameter instead.
         'java_in_dir': '../../build/android/empty',
         'additional_src_dirs': [ 'src/ri/' ],
       },
       'includes': [ '../../build/java.gypi' ],
     },
   ]
 }