Prevent ONC-pushed certificates from being used with multiprofiles.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 931efc837dcedcd9ad6c9b3502b1036119c746d6..f7f79c704c91260510f230915f086ce6858bf91c 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2259,6 +2259,10 @@ const char kOobeComplete[] = "OobeComplete";
 // A boolean pref of the device registered flag (second part after first login).
 const char kDeviceRegistered[] = "DeviceRegistered";
 
+// List of usernames that used certificates pushed by policy before.
+// This is used to prevent these users from joining multiprofile sessions.
+const char kUsedPolicyCertificates[] = "policy.used_policy_certificates";
+
 #endif
 
 // Whether there is a Flash version installed that supports clearing LSO data.