Include driver infor into PrinterBasicInfo.

printing/backend/win_helper.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PRINTING_BACKEND_WIN_HELPER_H_
 #define PRINTING_BACKEND_WIN_HELPER_H_
 #pragma once
 
 #include <objidl.h>
 #include <winspool.h>
 #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"
 
 // These are helper functions for dealing with Windows Printing.
 namespace printing {
 
+struct PRINTING_EXPORT PrinterBasicInfo;
+
 class PrinterHandleTraits {
  public:
   typedef HANDLE Handle;
 
   static bool CloseHandle(HANDLE handle) {
     return ::ClosePrinter(handle) != FALSE;
   }
 
   static bool IsHandleValid(HANDLE handle) {
     return handle != NULL;
@@ skipping 82 matching lines @@
       UINT8 *printable_pages_on,
       UINT32 printable_pages_on_count,
       IXpsPrintJob **xps_print_job,
       IXpsPrintJobStream **document_stream,
       IXpsPrintJobStream **print_ticket_stream);
  private:
   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_