Enable pairing registry in me2me native messaging host on Windows

remoting/host/pairing_registry_delegate_win.h

Index: remoting/host/pairing_registry_delegate_win.h
diff --git a/remoting/host/pairing_registry_delegate_win.h b/remoting/host/pairing_registry_delegate_win.h
index ecbd4a24b8cb56a030425c3183e12544d96e1bbf..93ce5cb4c9b2f889fafdd1b563471896ebf07945 100644
--- a/remoting/host/pairing_registry_delegate_win.h
+++ b/remoting/host/pairing_registry_delegate_win.h
@@ -19,6 +19,17 @@ class ListValue;
 
 namespace remoting {
 
+#if defined(OFFICIAL_BUILD)
+const wchar_t kPairingRegistryKeyName[] =
+    L"SOFTWARE\\Google\\Chrome Remote Desktop\\paired-clients";
+#else
+const wchar_t kPairingRegistryKeyName[] =
+    L"SOFTWARE\\Chromoting\\paired-clients";
+#endif
+
+const wchar_t kPairingRegistryClientsKeyName[] = L"secrets";
+const wchar_t kPairingRegistrySecretsKeyName[] = L"clients";
+
 // Stores client pairing information in Windows registry. Two separate registry
 // keys are used:
 //  - |privileged| - contains the shared secrets of all pairings. This key must