Pass list of printers to chrome using file.

chrome/browser/printing/cloud_print/cloud_print_proxy_service.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 CHROME_BROWSER_PRINTING_CLOUD_PRINT_CLOUD_PRINT_PROXY_SERVICE_H_
 #define CHROME_BROWSER_PRINTING_CLOUD_PRINT_CLOUD_PRINT_PROXY_SERVICE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 42 matching lines @@
   // Disable the service if the policy to do so is set, and once the
   // disablement is verified, quit the browser. Returns true if the policy is
   // not set or the connector was not enabled.
   bool EnforceCloudPrintConnectorPolicyAndQuit();
 
   std::string proxy_id() const { return proxy_id_; }
 
   // CloudPrintSetupHandler::Delegate implementation.
   virtual void OnCloudPrintSetupClosed() OVERRIDE;
 
+  // Returns list of printer names available for registration.
+  static void GetPrintersAvalibleForRegistration(
+      std::vector<std::string>* printers);
+
  private:
   // NotificationDelegate implementation for the token expired notification.
   class TokenExpiredNotificationDelegate;
   friend class TokenExpiredNotificationDelegate;
 
   Profile* profile_;
   std::string proxy_id_;
 
   // Methods that send an IPC to the service.
   void RefreshCloudPrintProxyStatus();
@@ skipping 28 matching lines @@
   PrefChangeRegistrar pref_change_registrar_;
 
   // If set, continue trying to disable the connector, and quit the process
   // once successful.
   bool enforcing_connector_policy_;
 
   DISALLOW_COPY_AND_ASSIGN(CloudPrintProxyService);
 };
 
 #endif  // CHROME_BROWSER_PRINTING_CLOUD_PRINT_CLOUD_PRINT_PROXY_SERVICE_H_