Add rule to build nacl_helper_nonsfi for ARM

src/nonsfi/loader/loader.gyp

 # 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.
 
 {
   'includes': [
     '../../../build/common.gypi',
   ],
   'targets': [
     {
@@ skipping 26 matching lines @@
         'build_irt': 0,
         'build_pnacl_newlib': 0,
         'build_nonsfi_helper': 1,
         'conditions': [
           ['target_arch=="ia32" or target_arch=="x64"', {
             'extra_deps_newlib32_nonsfi': [
               '>(tc_lib_dir_nonsfi_helper32)/libgio.a',
               '>(tc_lib_dir_nonsfi_helper32)/libplatform.a',
             ],
           }],
+          ['target_arch=="arm"', {
+            'extra_deps_newlib_arm_nonsfi': [

[Mark Seaborn, 2014/12/15 03:16:32]

Will similar changes be needed on the Chromium side when rolling this into
Chromium?  If so, could you commit those changes before committing this?

[mazda, 2014/12/17 17:11:27]

Yes, similar changes like the following are needed on the Chromium.
https://codereview.chromium.org/794573002/diff/20001/components/nacl_nonsfi.gyp

Let me clarify the commit order of the related CLs.

1. The similar change on Chromium side
(https://codereview.chromium.org/794573002/diff/20001/components/nacl_nonsfi.gyp)
2. This CL
3. (After NaCl is rolled), Chrome side change
(https://codereview.chromium.org/794573002/) except the change hunk in 1.

Is my understanding correct?

+              '>(tc_lib_dir_nonsfi_helper_arm)/libgio.a',
+              '>(tc_lib_dir_nonsfi_helper_arm)/libplatform.a',
+            ],
+          }],
         ],
       },
       'sources': [
         'elf_loader_main.c',
       ],
       'link_flags': [
         '-lelf_loader',
         '-lplatform',
         '-lgio',
       ],
       'dependencies': [
         'elf_loader',
         '<(DEPTH)/native_client/src/nonsfi/irt/irt.gyp:nacl_sys_private',
         '<(DEPTH)/native_client/src/untrusted/nacl/nacl.gyp:nacl_lib_newlib',
         '<(DEPTH)/native_client/tools.gyp:prep_toolchain',
       ],
     },
   ],
 }