fix bug 28151, change password when no password established should establish new password

extensions/wallet/src/wallet.cpp

@@ -2863,10 +2863,16 @@ extern int SI_LoadSignonData(PRBool fullLoad);
 PUBLIC
 void WLLT_ChangePassword() {
 
-  /* do nothing if password was never set */
   if (Wallet_KeySize() < 0) {
-    PRUnichar * message = Wallet_Localize("noPasswordToChange");
-    Wallet_Alert(message);
+
+    /* have user create database key if one was never created */
+    PRUnichar * message = Wallet_Localize("IncorrectKey_TryAgain?");
+    while (!Wallet_SetKey(PR_FALSE)) {
+      if (Wallet_CancelKey() || (Wallet_KeySize() < 0) || !Wallet_Confirm(message)) {
+        Recycle(message);
+        return;
+      }
+    }
     Recycle(message);
     return;
   }

extensions/wallet/src/wallet.properties

@@ -28,7 +28,6 @@ newPassword = Select a new master password.#(Leave fields blank if you don't wan
 enterPassword = Enter a master password
 confirmPassword = Retype the master password
 confirmFailed_TryAgain? = The two master passwords were not identical.  Please enter the same master password in both fields.
-noPasswordToChange = There is no master password to change.
 SelectUser = Select a username to be entered on this form.
 SelectUserWhosePasswordIsBeingChanged = Select the user whose password is being changed.
 PasswordNotification = For your convenience, the browser can remember your user names and passwords so you won't have to re-type them in the future.  Your passwords will be obscured before being saved on your hard drive.  Do you want this feature enabled?