Perform printer setup on Chrome OS before selecting printer.

chrome/browser/ui/webui/print_preview/print_preview_handler.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_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 137 matching lines @@
   // Handles the request to cancel the pending print request. |args| is unused.
   void HandleCancelPendingPrintRequest(const base::ListValue* args);
 
   // Handles a request to store data that the web ui wishes to persist.
   // First element of |args| is the data to persist.
   void HandleSaveAppState(const base::ListValue* args);
 
   // Gets the printer capabilities. First element of |args| is the printer name.
   void HandleGetPrinterCapabilities(const base::ListValue* args);
 
+  // Performs printer setup. First element of |args| is the printer name.
+  void HandlePrinterSetup(const base::ListValue* args);
+
 #if BUILDFLAG(ENABLE_BASIC_PRINT_DIALOG)
   // Asks the initiator renderer to show the native print system dialog. |args|
   // is unused.
   void HandleShowSystemDialog(const base::ListValue* args);
 #endif
 
   // Callback for the signin dialog to call once signin is complete.
   void OnSigninComplete();
 
   // Brings up a dialog to allow the user to sign into cloud print.
@@ skipping 44 matching lines @@
   void SendAccessToken(const std::string& type,
                        const std::string& access_token);
 
   // Sends the printer capabilities to the Web UI. |settings_info| contains
   // printer capabilities information. If |settings_info| is empty, sends
   // error notification to the Web UI instead.
   void SendPrinterCapabilities(
       const std::string& printer_name,
       std::unique_ptr<base::DictionaryValue> settings_info);
 
+  // Send the result of performing printer setup. |settings_info| contains
+  // printer capabilities.
+  void SendPrinterSetup(const std::string& callback_id,
+                        const std::string& printer_name,
+                        std::unique_ptr<base::DictionaryValue> settings_info);
+
   // Send the list of printers to the Web UI.
   void SetupPrinterList(const printing::PrinterList& printer_list);
 
   // Send whether cloud print integration should be enabled.
   void SendCloudPrintEnabled();
 
   // Send the PDF data to the cloud to print.
   void SendCloudPrintJob(const base::RefCountedBytes* data);
 
   // Handles printing to PDF.
@@ skipping 157 matching lines @@
   // Proxy for calls to the print backend.  Lazily initialized since web_ui() is
   // not available at construction time.
   std::unique_ptr<printing::PrinterBackendProxy> printer_backend_proxy_;
 
   base::WeakPtrFactory<PrintPreviewHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_