[Chromoting] Hook up host talkgadget policy checks.

remoting/host/constants.h

Index: remoting/host/constants.h
diff --git a/remoting/host/constants.h b/remoting/host/constants.h
index 54aa2280c657a5ec1fdc210838a88f1c20071179..9bf4714640f91a70e151d55de70a63880a4b1eed 100644
--- a/remoting/host/constants.h
+++ b/remoting/host/constants.h
@@ -9,10 +9,13 @@
 
 namespace remoting {
 
-// This is the default prefix that is prepended to ".talkgadget.google.com"
-// to form the complete talkgadget domain name. Policy settings allow admins
+// This is the default prefix that is prepended to the kTalkGadgetUrl to form
+// the complete talkgadget URL used by the host. Policy settings allow admins
 // to change the prefix that is used.
-extern const char kDefaultTalkGadgetPrefix[];
+extern const char kDefaultHostTalkGadgetPrefix[];
+
+// The base talkgadget URL.
+extern const char kTalkGadgetUrl[];
 
 // Known host exit codes.
 // Please keep this enum in sync with: