Remove incorrect dependency from chromeos.gyp

chromeos/chromeos.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.
 
 {
   'variables': {
     'chromium_code': 1,
     # These files lists are shared with the GN build.
     'chromeos_sources': [
       'accelerometer/accelerometer_reader.cc',
@@ skipping 580 matching lines @@
     {
       # GN version: //chromeos:chromeos_unittests
       'target_name': 'chromeos_unittests',
       'type': 'executable',
       'dependencies': [
         '../base/base.gyp:run_all_unittests',
         '../base/base.gyp:test_support_base',
         '../build/linux/system.gyp:dbus',
         '../build/linux/system.gyp:ssl',
         '../components/components.gyp:onc_component',
-        '../content/content_shell_and_tests.gyp:test_support_content',
         '../crypto/crypto.gyp:crypto',
         '../crypto/crypto.gyp:crypto_test_support',
         '../dbus/dbus.gyp:dbus_test_support',
         '../google_apis/google_apis.gyp:google_apis',
         '../net/net.gyp:net',
         '../net/net.gyp:net_test_support',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
         '../url/url.gyp:url_lib',
         'chromeos_test_support',
@@ skipping 60 matching lines @@
         '../third_party/cros_system_api/dbus/cryptohome/signed_secret.proto',
       ],
       'variables': {
         'proto_in_dir': '../third_party/cros_system_api/dbus/cryptohome',
         'proto_out_dir': 'chromeos/cryptohome',
       },
       'includes': ['../build/protoc.gypi'],
     },
   ],
 }