Convert chrome_elf_unittests to run exclusively on Swarming

chrome_elf/chrome_elf.gyp

 # Copyright 2013 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': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/util/version.gypi',
     '../build/win_precompile.gypi',
@@ skipping 128 matching lines @@
         'breakpad.cc',
         'breakpad.h',
       ],
       'dependencies': [
         'chrome_elf_common',
         '../breakpad/breakpad.gyp:breakpad_handler',
         '../chrome/common_constants.gyp:version_header',
       ],
     },
   ], # targets
+  'conditions': [
+    ['test_isolation_mode != "noop"', {
+      'targets': [
+        {
+          'target_name': 'chrome_elf_unittests_run',
+          'type': 'none',
+          'dependencies': [
+            'chrome_elf_unittests',
+          ],
+          'includes': [ '../build/isolate.gypi' ],
+          'sources': [ 'chrome_elf_unittests.isolate' ],
+        },
+      ],
+    }],
+  ],
 }