Print Preview: Change getPrinterCapabilities to cr.sendWithPromise

chrome/browser/ui/webui/print_preview/extension_printer_handler.h

 // Copyright 2015 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_EXTENSION_PRINTER_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_EXTENSION_PRINTER_HANDLER_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 84 matching lines @@
 
   // Methods used as wrappers to callbacks for extensions::PrinterProviderAPI
   // methods, primarily so the callbacks can be bound to this class' weak ptr.
   // They just propagate results to callbacks passed to them.
   void WrapGetPrintersCallback(
       const PrinterHandler::GetPrintersCallback& callback,
       const base::ListValue& printers,
       bool done);
   void WrapGetCapabilityCallback(
       const PrinterHandler::GetCapabilityCallback& callback,
-      const std::string& destination_id,
       const base::DictionaryValue& capability);
   void WrapPrintCallback(const PrinterHandler::PrintCallback& callback,
                          bool success,
                          const std::string& status);
   void WrapGetPrinterInfoCallback(const GetPrinterInfoCallback& callback,
                                   const base::DictionaryValue& printer_info);
 
   void OnUsbDevicesEnumerated(
       const PrinterHandler::GetPrintersCallback& callback,
       const std::vector<scoped_refptr<device::UsbDevice>>& devices);
 
   content::BrowserContext* browser_context_;
 
   std::unique_ptr<printing::PWGRasterConverter> pwg_raster_converter_;
   int pending_enumeration_count_ = 0;
 
   base::WeakPtrFactory<ExtensionPrinterHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPrinterHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_EXTENSION_PRINTER_HANDLER_H_