Android: remove x86 from sandbox/linux once again.

sandbox/linux/sandbox_linux.gypi

 # 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.
 
 {
   'variables': {
     'conditions': [
       ['OS=="linux"', {
         'compile_suid_client': 1,
       }, {
         'compile_suid_client': 0,
       }],
-      ['((OS=="linux" or OS=="android") and '
+      ['((OS=="linux" or (OS=="android" and target_arch=="arm")) and '
              '(target_arch=="ia32" or target_arch=="x64" or '
               'target_arch=="arm"))', {
         'compile_seccomp_bpf': 1,
       }, {
         'compile_seccomp_bpf': 0,
       }],
     ],
   },
   'target_defaults': {
     'target_conditions': [
@@ skipping 191 matching lines @@
           'input_shlib_path':
               '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)sandbox_linux_unittests'
               '<(SHARED_LIB_SUFFIX)',
         },
         'includes': [ '../../build/apk_test.gypi' ],
         }
       ],
     }],
   ],
 }