Send data back from service using IPC, not file.

cloud_print/service/win/service_controller.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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>
 
 #include "base/command_line.h"
@@ skipping 95 matching lines @@
           status.dwCurrentState > SERVICE_STOPPED) {
     Sleep(500);
     ::ControlService(service, SERVICE_CONTROL_STOP, &status);
   }
   return S_OK;
 }
 
 HRESULT ServiceController::InstallService(const string16& user,
                                           const string16& password,
                                           const std::string& run_switch,
-                                          const base::FilePath& user_data_dir) {
+                                          const base::FilePath& user_data_dir,
+                                          bool auto_start) {
   // TODO(vitalybuka): consider "lite" version if we don't want unregister
   // printers here.
   HRESULT hr = UninstallService();
   if (FAILED(hr))
     return hr;
 
   hr = UpdateRegistryAppId(true);
   if (FAILED(hr))
     return hr;
 
@@ skipping 17 matching lines @@
   }
 
   ServiceHandle scm;
   hr = OpenServiceManager(&scm);
   if (FAILED(hr))
     return hr;
 
   ServiceHandle service(
       ::CreateService(
           scm, name_.c_str(), name_.c_str(), SERVICE_ALL_ACCESS,
-          SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL,
-          command_line.GetCommandLineString().c_str(), NULL, NULL, NULL,
-          user.empty() ? NULL : user.c_str(),
+          SERVICE_WIN32_OWN_PROCESS,
+          auto_start ? SERVICE_AUTO_START : SERVICE_DEMAND_START,
+          SERVICE_ERROR_NORMAL, command_line.GetCommandLineString().c_str(),
+          NULL, NULL, NULL, user.empty() ? NULL : user.c_str(),
           password.empty() ? NULL : password.c_str()));
 
   if (!service.IsValid()) {
     LOG(ERROR) << "Failed to install service as " << user << ".";
     return HResultFromLastError();
   }
 
   return S_OK;
 }
 
 HRESULT ServiceController::UninstallService() {
   StopService();
 
   ServiceHandle service;
   OpenService(name_, SERVICE_STOP | DELETE, &service);
   HRESULT hr = S_FALSE;
   if (service) {
     if (!::DeleteService(service)) {
       LOG(ERROR) << "Failed to uninstall service";
       hr = HResultFromLastError();
     }
   }
   UpdateRegistryAppId(false);
   return hr;
 }