Add support for multiple allowed domains

remoting/host/it2me/it2me_host.h

Index: remoting/host/it2me/it2me_host.h
diff --git a/remoting/host/it2me/it2me_host.h b/remoting/host/it2me/it2me_host.h
index 964f911eb6179c222b853d14e5671126607d643f..6305574ed34a114742689ef41f0eee7ffa6e7c73 100644
--- a/remoting/host/it2me/it2me_host.h
+++ b/remoting/host/it2me/it2me_host.h
@@ -7,6 +7,7 @@
 
 #include <memory>
 #include <string>
+#include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ -143,7 +144,10 @@ class It2MeHost : public base::RefCountedThreadSafe<It2MeHost>,
   // Handlers for NAT traversal and domain policies.
   void UpdateNatPolicy(bool nat_traversal_enabled);
   void UpdateHostDomainPolicy(const std::string& host_domain);
+  void UpdateHostDomainListPolicy(std::vector<std::string> host_domain_list);
   void UpdateClientDomainPolicy(const std::string& client_domain);
+  void UpdateClientDomainListPolicy(
+      std::vector<std::string> client_domain_list);
 
   void DisconnectOnNetworkThread();
 
@@ -180,7 +184,9 @@ class It2MeHost : public base::RefCountedThreadSafe<It2MeHost>,
 
   // The client and host domain policy setting.
   std::string required_client_domain_;
+  std::vector<std::string> required_client_domain_list_;
   std::string required_host_domain_;
+  std::vector<std::string> required_host_domain_list_;
 
   // Indicates whether or not a policy has ever been read. This is to ensure
   // that on startup, we do not accidentally start a connection before we have