Create a new print backend for the updated CUPS APIs

printing/backend/cups_deleters.h

Index: printing/backend/cups_deleters.h
diff --git a/printing/backend/cups_deleters.h b/printing/backend/cups_deleters.h
new file mode 100644
index 0000000000000000000000000000000000000000..ac4ef4df1626580a87a3ea704d8ddcc045c5bcb3
--- /dev/null
+++ b/printing/backend/cups_deleters.h
@@ -0,0 +1,29 @@
+// 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_CUPS_DELETERS_H_
+#define PRINTING_BACKEND_CUPS_DELETERS_H_
+
+#include <cups/cups.h>
+
+namespace printing {
+
+struct HttpDeleter {
+ public:
+  void operator()(http_t* http) const;
+};
+
+struct DestinationDeleter {
+ public:
+  void operator()(cups_dest_t* dest) const;
+};
+
+struct DestInfoDeleter {
+ public:
+  void operator()(cups_dinfo_t* info) const;
+};
+
+}  // namespace printing
+
+#endif  // PRINTING_BACKEND_CUPS_DELETERS_H_