Add policy to use system default printer

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 5385bdb974add5212b6885e8d05c93027ba0e837..132bf069d52a4685d64571dbaf5b728bf7f2500c 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -1241,6 +1241,13 @@ const char kPrintPreviewDisabled[] = "printing.print_preview_disabled";
 const char kPrintPreviewDefaultDestinationSelectionRules[] =
     "printing.default_destination_selection_rules";
 
+#if !defined(OS_CHROMEOS)
+// A pref that sets the default destination in Print Preview to always be the
+// OS default printer instead of the most recently used destination.
+const char kPrintPreviewUseSystemDefaultPrinter[] =
+    "printing.use_system_default_printer";
+#endif  // !OS_CHROMEOS
+
 #if defined(OS_CHROMEOS)
 // List of all printers that the user has configured.
 const char kPrintingDevices[] = "printing.devices";