Add cloud_print to the GN build.

cloud_print/service/win/service_controller.cc

 // Copyright 2013 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 "cloud_print/service/win/service_controller.h"
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <atlctl.h>
 
@@ skipping 282 matching lines @@
   }
 
   DWORD config_size = 0;
   ::QueryServiceConfig(service.Get(), NULL, 0, &config_size);
   if (!config_size)
     return;
 
   std::vector<uint8> buffer(config_size, 0);
   QUERY_SERVICE_CONFIG* config =
       reinterpret_cast<QUERY_SERVICE_CONFIG*>(&buffer[0]);
-  if (!::QueryServiceConfig(service.Get(), config, buffer.size(),
+  if (!::QueryServiceConfig(service.Get(), config,
+                            static_cast<DWORD>(buffer.size()),
                             &config_size) ||
       config_size != buffer.size()) {
     return;
   }
 
   command_line_ = base::CommandLine::FromString(config->lpBinaryPathName);
   if (!command_line_.HasSwitch(kServiceSwitch)) {
     state_ = STATE_NOT_FOUND;
     return;
   }
   is_logging_enabled_ = command_line_.HasSwitch(switches::kEnableLogging);
   user_ = config->lpServiceStartName;
 }
 
 bool ServiceController::is_logging_enabled() const {
   return command_line_.HasSwitch(switches::kEnableLogging);
 }