Get semantic capabilities from Print Backend.

printing/backend/print_backend_cups.cc

Index: printing/backend/print_backend_cups.cc
===================================================================
--- printing/backend/print_backend_cups.cc	(revision 153539)
+++ printing/backend/print_backend_cups.cc	(working copy)
@@ -108,6 +108,9 @@
   // PrintBackend implementation.
   virtual bool EnumeratePrinters(PrinterList* printer_list) OVERRIDE;
   virtual std::string GetDefaultPrinterName() OVERRIDE;
+  virtual bool GetPrinterSemanticCapsAndDefaults(
+      const std::string& printer_name,
+      PrinterSemanticCapsAndDefaults* printer_info) OVERRIDE;
   virtual bool GetPrinterCapsAndDefaults(
       const std::string& printer_name,
       PrinterCapsAndDefaults* printer_info) OVERRIDE;
@@ -210,6 +213,17 @@
   return dest ? std::string(dest->name) : std::string();
 }
 
+bool PrintBackendCUPS::GetPrinterSemanticCapsAndDefaults(
+    const std::string& printer_name,
+    PrinterSemanticCapsAndDefaults* printer_info) {
+  PrinterCapsAndDefaults info;
+  if (!GetPrinterCapsAndDefaults(printer_name, &info) )
+    return false;
+
+  return parsePpdCapabilities(
+      printer_name, info.printer_capabilities, printer_info);
+}
+
 bool PrintBackendCUPS::GetPrinterCapsAndDefaults(
     const std::string& printer_name,
     PrinterCapsAndDefaults* printer_info) {