Move //remoting/remoting_host_win.gypi:* to GN

remoting/remoting_enable.gni

Index: remoting/remoting_enable.gni
diff --git a/remoting/remoting_enable.gni b/remoting/remoting_enable.gni
index f8c1b20db1b1f9b813e54cebe37127a6f3e0dd46..b213f677ee8bee75b119a2ed253242d3617b9a88 100644
--- a/remoting/remoting_enable.gni
+++ b/remoting/remoting_enable.gni
@@ -9,13 +9,13 @@ import("//build/config/ui.gni")
 enable_remoting_host = false
 enable_me2me_host = false
 
-# TODO(GYP) Make remoting hosts work on Windows and Mac.
-#if (is_win || is_mac) {
+# TODO(GYP) Make remoting hosts work on Mac.
+#if (is_mac) {
 #  enable_remoting_host = true
 #  enable_me2me_host = true
 #}
 
-if (is_linux && !is_chromeos && use_x11) {
+if (is_win || (is_linux && !is_chromeos && use_x11)) {
   enable_remoting_host = true
   enable_me2me_host = true
 }