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 823076281e68d95a577143c4c6d326aeb310b0c5..7a9dc976e43a824c9e31632d66d37a617178241a 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2247,6 +2247,10 @@ 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.