Include driver infor into PrinterBasicInfo.

printing/backend/win_helper.h

Index: printing/backend/win_helper.h
diff --git a/printing/backend/win_helper.h b/printing/backend/win_helper.h
index 667609d584c0b5fb6b09812647de3c7d2faba823..7c35cbeb579e4bdcd508de25f4ff5c4e0e28c237 100644
--- a/printing/backend/win_helper.h
+++ b/printing/backend/win_helper.h
@@ -11,6 +11,9 @@
 #include <prntvpt.h>
 #include <xpsprint.h>
 
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "base/win/scoped_handle.h"
 #include "printing/printing_export.h"
@@ -18,6 +21,8 @@
 // These are helper functions for dealing with Windows Printing.
 namespace printing {
 
+struct PRINTING_EXPORT PrinterBasicInfo;
+
 class PrinterHandleTraits {
  public:
   typedef HANDLE Handle;
@@ -120,6 +125,11 @@ class PRINTING_EXPORT XPSPrintModule {
   static bool InitImpl();
 };
 
+PRINTING_EXPORT bool InitBasicPrinterInfo(HANDLE printer,
+                                          PrinterBasicInfo* printer_info);
+
+PRINTING_EXPORT std::string GetDriverInfo(HANDLE printer);
+
 }  // namespace printing
 
 #endif  // PRINTING_BACKEND_WIN_HELPER_H_