Easy Sign-in: Use TPM RSA key to sign nonce in sign-in protocol

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 f2aa09136f0fe1b508c160c85dfcb0bb992af596..520d7ec03851cfed1eb73bc5f7da7d5c5a1b2e09 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2281,6 +2281,10 @@ const char kBrowserAddPersonEnabled[] = "profile.add_person_enabled";
 // A dictionary that maps user id to hardlock state.
 const char kEasyUnlockHardlockState[] = "easy_unlock.hardlock_state";
 
+// A dictionary that maps user id to public part of RSA key pair used by
+// Easy Sign-in for the user.
+const char kEasyUnlockLocalStateTpmKeys[] = "easy_unlock.public_tpm_keys";
+
 // The beginning of time span when we count user's "Nope" for the password
 // bubble.
 const char kPasswordBubbleTimeStamp[] = "password_bubble.timestamp";