Simplify document title for Windows printing.

printing/backend/print_backend.h

Index: printing/backend/print_backend.h
diff --git a/printing/backend/print_backend.h b/printing/backend/print_backend.h
index 3cbf162fce158bb9df2106ae6bde170754fe4af1..9c73ae710a8dac97caa54f453b5193a1de9c7dfd 100644
--- a/printing/backend/print_backend.h
+++ b/printing/backend/print_backend.h
@@ -10,6 +10,7 @@
 #include <vector>
 
 #include "base/memory/ref_counted.h"
+#include "base/string16.h"
 #include "printing/print_job_constants.h"
 #include "printing/printing_export.h"
 
@@ -92,6 +93,9 @@ class PRINTING_EXPORT PrintBackend
   // Returns true if printer_name points to a valid printer.
   virtual bool IsValidPrinter(const std::string& printer_name) = 0;
 
+  // Simplify title to resolve issue with some drivers on Windows.

[Albert Bodenhamer, 2012/09/20 00:25:20]

nit: Change is no longer Win specific.

[Vitaly Buka (NO REVIEWS), 2012/09/20 00:28:44]

Done.

+  static string16 SimplifyDocumentTitle(const string16& title);
+
   // Allocate a print backend. If |print_backend_settings| is NULL, default
   // settings will be used.
   // Return NULL if no print backend available.