Create a new print backend for the updated CUPS APIs

printing/backend/print_backend_cups_ipp.h

Index: printing/backend/print_backend_cups_ipp.h
diff --git a/printing/backend/print_backend_cups_ipp.h b/printing/backend/print_backend_cups_ipp.h
new file mode 100644
index 0000000000000000000000000000000000000000..06cc73dcac6d4fd63f29067b9ddfc76323130c13
--- /dev/null
+++ b/printing/backend/print_backend_cups_ipp.h
@@ -0,0 +1,42 @@
+// Copyright 2016 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_PRINT_BACKEND_CUPS_IPP_H_
+#define PRINTING_BACKEND_PRINT_BACKEND_CUPS_IPP_H_
+
+#include <memory>
+#include <string>
+
+#include "printing/backend/cups_connection.h"
+#include "printing/backend/print_backend.h"
+#include "url/gurl.h"
+
+namespace printing {
+
+class PrintBackendCupsIpp : public PrintBackend {
+ public:
+  explicit PrintBackendCupsIpp(std::unique_ptr<CupsConnection> connection);
+
+ private:
+  ~PrintBackendCupsIpp() override;
+
+  // PrintBackend implementation.
+  bool EnumeratePrinters(PrinterList* printer_list) override;
+  std::string GetDefaultPrinterName() override;
+  bool GetPrinterBasicInfo(const std::string& printer_name,
+                           PrinterBasicInfo* printer_info) override;
+  bool GetPrinterSemanticCapsAndDefaults(
+      const std::string& printer_name,
+      PrinterSemanticCapsAndDefaults* printer_info) override;
+  bool GetPrinterCapsAndDefaults(const std::string& printer_name,
+                                 PrinterCapsAndDefaults* printer_info) override;
+  std::string GetPrinterDriverInfo(const std::string& printer_name) override;
+  bool IsValidPrinter(const std::string& printer_name) override;
+
+  std::unique_ptr<CupsConnection> cups_connection_;
+};
+
+}  // namespace printing
+
+#endif  // PRINTING_BACKEND_PRINT_BACKEND_CUPS_IPP_H_