Print Preview: Change getPrinterCapabilities to cr.sendWithPromise

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

 // 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.
 
 #include "chrome/browser/ui/webui/print_preview/extension_printer_handler.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 155 matching lines @@
 }
 
 void ExtensionPrinterHandler::StartGetCapability(
     const std::string& destination_id,
     const PrinterHandler::GetCapabilityCallback& callback) {
   extensions::PrinterProviderAPIFactory::GetInstance()
       ->GetForBrowserContext(browser_context_)
       ->DispatchGetCapabilityRequested(
           destination_id,
           base::Bind(&ExtensionPrinterHandler::WrapGetCapabilityCallback,
-                     weak_ptr_factory_.GetWeakPtr(), callback, destination_id));
+                     weak_ptr_factory_.GetWeakPtr(), callback));
 }
 
 void ExtensionPrinterHandler::StartPrint(
     const std::string& destination_id,
     const std::string& capability,
     const base::string16& job_title,
     const std::string& ticket_json,
     const gfx::Size& page_size,
     const scoped_refptr<base::RefCountedMemory>& print_data,
     const PrinterHandler::PrintCallback& callback) {
@@ skipping 106 matching lines @@
     bool done) {
   DCHECK_GT(pending_enumeration_count_, 0);
   if (done)
     pending_enumeration_count_--;
 
   callback.Run(printers, pending_enumeration_count_ == 0);
 }
 
 void ExtensionPrinterHandler::WrapGetCapabilityCallback(
     const PrinterHandler::GetCapabilityCallback& callback,
-    const std::string& destination_id,
     const base::DictionaryValue& capability) {
-  callback.Run(destination_id, capability);
+  callback.Run(capability);
 }
 
 void ExtensionPrinterHandler::WrapPrintCallback(
     const PrinterHandler::PrintCallback& callback,
     bool success,
     const std::string& status) {
   callback.Run(success, status);
 }
 
 void ExtensionPrinterHandler::WrapGetPrinterInfoCallback(
@@ skipping 45 matching lines @@
                 .Set("provisional", true)
                 .Build());
       }
     }
   }
 
   DCHECK_GT(pending_enumeration_count_, 0);
   pending_enumeration_count_--;
   callback.Run(*printer_list.Build().get(), pending_enumeration_count_ == 0);
 }