Change the way _EXPORT macros look.

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,
   },
   'targets': [
     {
       'target_name': 'chromeos',
       'type': '<(component)',
       'dependencies': [
         '../base/base.gyp:base',
         '../build/linux/system.gyp:dbus',
         '../dbus/dbus.gyp:dbus',
         '../net/net.gyp:net',
         'power_state_control_proto',
         'power_supply_properties_proto',
       ],
+      'defines': [
+        'CHROMEOS_IMPLEMENTATION',
+      ],
       'sources': [
         'chromeos_export.h',
         'chromeos_switches.cc',
         'chromeos_switches.h',
         'dbus/blocking_method_caller.cc',
         'dbus/blocking_method_caller.h',
         'dbus/bluetooth_adapter_client.cc',
         'dbus/bluetooth_adapter_client.h',
         'dbus/bluetooth_agent_service_provider.cc',
         'dbus/bluetooth_agent_service_provider.h',
@@ skipping 178 matching lines @@
         '../third_party/cros_system_api/dbus/power_supply_properties.proto',
       ],
       'variables': {
         'proto_in_dir': '../third_party/cros_system_api/dbus/',
         'proto_out_dir': 'chromeos/dbus',
       },
       'includes': ['../build/protoc.gypi'],
     },
   ],
 }