Reland 105087: PrintPreview: Fix printer color settings issues based on printer ppd/schema info.

chrome/browser/printing/print_system_task_proxy.h

+// Copyright (c) 2011 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 CHROME_BROWSER_PRINTING_PRINT_SYSTEM_TASK_PROXY_H_
+#define CHROME_BROWSER_PRINTING_PRINT_SYSTEM_TASK_PROXY_H_
+#pragma once
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "build/build_config.h"
+#include "chrome/browser/ui/webui/print_preview_handler.h"
+#include "content/browser/browser_thread.h"
+
+namespace base {
+class DictionaryValue;
+class FundamentalValue;
+class StringValue;
+}
+
+namespace printing {
+class PrintBackend;
+}
+
+#if defined(UNIT_TEST) && defined(USE_CUPS) && !defined(OS_MACOSX)
+typedef struct cups_option_s cups_option_t;
+
+namespace printing_internal {
+// Helper function to parse the lpoptions custom settings. |num_options| and
+// |options| will be updated if the custom settings for |printer_name| are
+// found, otherwise nothing is done.
+// NOTE: This function is declared here so it can be exposed for unit testing.
+void parse_lpoptions(const FilePath& filepath, const std::string& printer_name,
+    int* num_options, cups_option_t** options);
+}  // namespace printing_internal
+
+#endif
+
+class PrintSystemTaskProxy
+    : public base::RefCountedThreadSafe<PrintSystemTaskProxy,
+                                        BrowserThread::DeleteOnUIThread> {
+ public:
+  PrintSystemTaskProxy(const base::WeakPtr<PrintPreviewHandler>& handler,
+                       printing::PrintBackend* print_backend,
+                       bool has_logged_printers_count);
+
+  void GetDefaultPrinter();
+
+  void EnumeratePrinters();
+
+  void GetPrinterCapabilities(const std::string& printer_name);
+
+ private:
+  friend struct BrowserThread::DeleteOnThread<BrowserThread::UI>;
+  friend class DeleteTask<PrintSystemTaskProxy>;
+
+  void SendDefaultPrinter(const base::StringValue* default_printer,
+                          const base::StringValue* cloud_print_data);
+  void SetupPrinterList(base::ListValue* printers);
+  void SendPrinterCapabilities(base::DictionaryValue* settings_info);
+
+  ~PrintSystemTaskProxy();
+
+  base::WeakPtr<PrintPreviewHandler> handler_;
+
+  scoped_refptr<printing::PrintBackend> print_backend_;
+
+  bool has_logged_printers_count_;
+
+  DISALLOW_COPY_AND_ASSIGN(PrintSystemTaskProxy);
+};
+
+#endif  // CHROME_BROWSER_PRINTING_PRINT_SYSTEM_TASK_PROXY_H_