Fallback to CDD/CJT if connector can't initialize XPS API.

chrome/service/cloud_print/print_system_cups.cc

Index: chrome/service/cloud_print/print_system_cups.cc
diff --git a/chrome/service/cloud_print/print_system_cups.cc b/chrome/service/cloud_print/print_system_cups.cc
index 9b148617a2d6e84c8b538ed9ce383f0f56859c8b..b043357dce8d2585520e5b6bb76987503a9465b7 100644
--- a/chrome/service/cloud_print/print_system_cups.cc
+++ b/chrome/service/cloud_print/print_system_cups.cc
@@ -96,6 +96,7 @@ class PrintSystemCUPS : public PrintSystem {
   virtual PrintSystem::PrinterWatcher* CreatePrinterWatcher(
       const std::string& printer_name) OVERRIDE;
   virtual PrintSystem::JobSpooler* CreateJobSpooler() OVERRIDE;
+  virtual bool UseCddAndCjt() OVERRIDE;
   virtual std::string GetSupportedMimeTypes() OVERRIDE;
 
   // Helper functions.
@@ -728,6 +729,10 @@ PrintSystem::JobSpooler* PrintSystemCUPS::CreateJobSpooler() {
   return new JobSpoolerCUPS(this);
 }
 
+bool PrintSystemCUPS::UseCddAndCjt() OVERRIDE {
+  return false;
+}
+
 std::string PrintSystemCUPS::GetSupportedMimeTypes() {
   return supported_mime_types_;
 }