Fix remoting_unittests that are failing on 32-bit linux

remoting/host/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/manifest.gni")
 import("//build/util/version.gni")
 import("//remoting/remoting_enable.gni")
 import("//remoting/remoting_locales.gni")
@@ skipping 314 matching lines @@
       "policy_watcher_unittest.cc",
       "register_support_host_request_unittest.cc",
       "remote_input_filter_unittest.cc",
       "resizing_host_observer_unittest.cc",
       "resources_unittest.cc",
       "screen_resolution_unittest.cc",
       "security_key/gnubby_auth_handler_linux_unittest.cc",
       "security_key/gnubby_auth_handler_win_unittest.cc",
       "security_key/gnubby_extension_session_unittest.cc",
       "security_key/remote_security_key_ipc_client_unittest.cc",
+      "security_key/remote_security_key_ipc_constants.cc",

[Dirk Pranke, 2016/05/20 23:03:06]

you don't need to add the ipc_constants.cc file here, because it should already
be being
pulled into the :host target via the list of sources in the gypi file, above
(line 73).

       "security_key/remote_security_key_ipc_server_unittest.cc",
       "security_key/remote_security_key_message_handler_unittest.cc",
       "security_key/remote_security_key_message_reader_impl_unittest.cc",
       "security_key/remote_security_key_message_writer_impl_unittest.cc",
       "server_log_entry_host_unittest.cc",
       "setup/me2me_native_messaging_host_unittest.cc",
       "setup/oauth_helper_unittest.cc",
       "setup/pin_validator_unittest.cc",
       "third_party_auth_config_unittest.cc",
       "token_validator_factory_impl_unittest.cc",
@@ skipping 811 matching lines @@
           "--target_arch",
           msi_script_arch,
           rebase_path("$root_out_dir/remoting-me2me-host-$current_os.zip",
                       root_build_dir),
           rebase_path(outputs[0], root_build_dir),
         ]
       }
     }
   }
 }