Move useful printing backend code from chrome/service/cloud_print to printing...

chrome/service/cloud_print/cloud_print_proxy_backend.h

 // Copyright (c) 2010 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_SERVICE_CLOUD_PRINT_CLOUD_PRINT_PROXY_BACKEND_H_
 #define CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_PROXY_BACKEND_H_
 #pragma once
 
 #include <string>
 
 #include "base/thread.h"
-#include "chrome/service/cloud_print/print_system.h"
 #include "chrome/common/net/url_fetcher.h"
 #include "googleurl/src/gurl.h"
+#include "printing/backend/print_backend.h"
 
 class CloudPrintProxyService;
 class DictionaryValue;
 
 // CloudPrintProxyFrontend is the interface used by CloudPrintProxyBackend to
 // communicate with the entity that created it and, presumably, is interested in
 // cloud print proxy related activity.
 // NOTE: All methods will be invoked by a CloudPrintProxyBackend on the same
 // thread used to create that CloudPrintProxyBackend.
 class CloudPrintProxyFrontend {
  public:
   CloudPrintProxyFrontend() {}
 
   // There is a list of printers available that can be registered.
   virtual void OnPrinterListAvailable(
-      const cloud_print::PrinterList& printer_list) = 0;
+      const printing::PrinterList& printer_list) = 0;
   // We successfully authenticated with the cloud print server. This callback
   // allows the frontend to persist the tokens.
   virtual void OnAuthenticated(const std::string& cloud_print_token,
                                const std::string& cloud_print_xmpp_token,
                                const std::string& email) = 0;
   // We have invalid/expired credentials.
   virtual void OnAuthenticationFailed() = 0;
 
  protected:
   // Don't delete through SyncFrontend interface.
@@ skipping 11 matching lines @@
                                   const GURL& cloud_print_server_url,
                                   const DictionaryValue* print_sys_settings);
   ~CloudPrintProxyBackend();
 
   bool InitializeWithLsid(const std::string& lsid, const std::string& proxy_id);
   bool InitializeWithToken(const std::string cloud_print_token,
                            const std::string cloud_print_xmpp_token,
                            const std::string email,
                            const std::string& proxy_id);
   void Shutdown();
-  void RegisterPrinters(const cloud_print::PrinterList& printer_list);
+  void RegisterPrinters(const printing::PrinterList& printer_list);
 
  private:
   // The real guts of SyncBackendHost, to keep the public client API clean.
   class Core;
   // A thread we dedicate for use to perform initialization and
   // authentication.
   base::Thread core_thread_;
   // Our core, which communicates with AuthWatcher for GAIA authentication and
   // which contains printer registration code.
   scoped_refptr<Core> core_;
   // A reference to the MessageLoop used to construct |this|, so we know how
   // to safely talk back to the SyncFrontend.
   MessageLoop* const frontend_loop_;
   // The frontend which is responsible for displaying UI and updating Prefs
   CloudPrintProxyFrontend* frontend_;
 
   friend class base::RefCountedThreadSafe<CloudPrintProxyBackend::Core>;
 
   DISALLOW_COPY_AND_ASSIGN(CloudPrintProxyBackend);
 };
 
 #endif  // CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_PROXY_BACKEND_H_
-