Add policy to use system default printer

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 9a1b589fade8884ad5afb339191b84713a886b4b..b98f5914951b3cdecb4ae5b990b7a88b65fb2ec6 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -1166,6 +1166,11 @@ bool PowerOverlayEnabled() {
 }
 #endif
 
+#if !defined(OS_CHROMEOS)
+// Uses the system default printer as the initially selected destination in
+// print preview, instead of the most recently used destination.
+const char kUseSystemDefaultPrinter[] = "use-system-default-printer";
+#endif
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR VERY NICE FLAGS TO THE BOTTOM OF THIS FILE.
 //