Get semantic capabilities from Print Backend.

printing/backend/cups_helper.h

Index: printing/backend/cups_helper.h
===================================================================
--- printing/backend/cups_helper.h	(revision 153539)
+++ printing/backend/cups_helper.h	(working copy)
@@ -7,6 +7,8 @@
 
 #include <cups/cups.h>
 
+#include <string>
+
 #include "printing/printing_export.h"
 
 class GURL;
@@ -14,6 +16,8 @@
 // These are helper functions for dealing with CUPS.
 namespace printing {
 
+struct PrinterSemanticCapsAndDefaults;
+
 // Helper wrapper around http_t structure, with connection and cleanup
 // functionality.
 class PRINTING_EXPORT HttpConnectionCUPS {
@@ -30,6 +34,13 @@
   http_t* http_;
 };
 
+// Helper function to parse and convert PPD capabilitites to
+// semantic options.
+PRINTING_EXPORT bool parsePpdCapabilities(
+    const std::string& printer_name,
+    const std::string& printer_capabilities,
+    PrinterSemanticCapsAndDefaults* printer_info);
+
 }  // namespace printing
 
 #endif  // PRINTING_BACKEND_CUPS_HELPER_H_