Added code in the browser process to display a Cloud Print token expired desk...

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
===================================================================
--- chrome/common/chrome_switches.cc	(revision 59251)
+++ chrome/common/chrome_switches.cc	(working copy)
@@ -781,6 +781,10 @@
 // Chrome for the purpose of hosting background apps).
 const char kNoStartupWindow[]               = "no-startup-window";
 
+// Show a desktop notification that the cloud print token has expired and
+// that user needs to re-authenticate.
+const char kNotifyCloudPrintTokenExpired[] = "notify-cp-token-expired";
+
 // Don't use TopSites; use old ThumbnailDatabase code instead.
 const char kNoTopSites[]                    = "no-top-sites";