arc-bridge: Add the ARC Bridge Service

chromeos/arc/bridge/common/arc_host_messages.h

Index: chromeos/arc/bridge/common/arc_host_messages.h
diff --git a/chromeos/arc/bridge/common/arc_host_messages.h b/chromeos/arc/bridge/common/arc_host_messages.h
index a04efd20ea568acf5f27e17c9694ec26bf9bd043..daf3857c41bbab4195f1fbdc14d77a581abd45dd 100644
--- a/chromeos/arc/bridge/common/arc_host_messages.h
+++ b/chromeos/arc/bridge/common/arc_host_messages.h
@@ -2,11 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Messages sent from the host to the ARC instance
+// Messages sent from the ARC instance to the host.
 // Multiply-included message file, hence no include guard.
 
+#include "chromeos/chromeos_export.h"
 #include "ipc/ipc_message_macros.h"
 
+// Export IPC messages.
+#undef IPC_MESSAGE_EXPORT
+#define IPC_MESSAGE_EXPORT CHROMEOS_EXPORT
+
 #define IPC_MESSAGE_START ArcInstanceHostMsgStart
 
 IPC_MESSAGE_CONTROL0(ArcInstanceHostMsg_InstanceReady)