Remove the (broken and unneeded) 'force_update' option from ServiceWatcher::DiscoverNewDevices.

chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.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 "chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.h"
 
+#include <memory>
 #include <set>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/user_metrics.h"
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
@@ skipping 149 matching lines @@
         cloud_print::PrivetHTTPAsynchronousFactory::CreateInstance(
             profile->GetRequestContext());
 
     SigninManagerBase* signin_manager =
         SigninManagerFactory::GetInstance()->GetForProfile(profile);
     if (signin_manager)
       signin_manager->AddObserver(this);
   }
 
   privet_lister_->Start();
-  privet_lister_->DiscoverNewDevices(false);
+  privet_lister_->DiscoverNewDevices();
 
 #if defined(CLOUD_PRINT_CONNECTOR_UI_AVAILABLE)
   StartCloudPrintConnector();
 #endif
 
   CheckUserLoggedIn();
 }
 
 void LocalDiscoveryUIHandler::HandleIsVisible(const base::ListValue* args) {
   bool is_visible = false;
@@ skipping 186 matching lines @@
   auto null_value = base::MakeUnique<base::Value>();
   base::Value name_value(kKeyPrefixMDns + name);
 
   web_ui()->CallJavascriptFunctionUnsafe(
       "local_discovery.onUnregisteredDeviceUpdate", name_value, *null_value);
 }
 
 void LocalDiscoveryUIHandler::DeviceCacheFlushed() {
   web_ui()->CallJavascriptFunctionUnsafe(
       "local_discovery.onDeviceCacheFlushed");
-  privet_lister_->DiscoverNewDevices(false);
+  privet_lister_->DiscoverNewDevices();
 }
 
 void LocalDiscoveryUIHandler::OnDeviceListReady(
     const CloudPrintPrinterList::DeviceList& devices) {
   cloud_devices_.insert(cloud_devices_.end(), devices.begin(), devices.end());
   ++succeded_list_count_;
   CheckListingDone();
 }
 
 void LocalDiscoveryUIHandler::OnDeviceListUnavailable() {
@@ skipping 15 matching lines @@
 
 void LocalDiscoveryUIHandler::SendRegisterError() {
   web_ui()->CallJavascriptFunctionUnsafe(
       "local_discovery.onRegistrationFailed");
 }
 
 void LocalDiscoveryUIHandler::SendRegisterDone(
     const std::string& service_name) {
   // HACK(noamsml): Generate network traffic so the Windows firewall doesn't
   // block the printer's announcement.
-  privet_lister_->DiscoverNewDevices(false);
+  privet_lister_->DiscoverNewDevices();
 
   DeviceDescriptionMap::iterator it = device_descriptions_.find(service_name);
 
   if (it == device_descriptions_.end()) {
     // TODO(noamsml): Handle the case where a printer's record is not present at
     // the end of registration.
     SendRegisterError();
     return;
   }
 
@@ skipping 180 matching lines @@
     service->RefreshStatusFromService();
 }
 
 CloudPrintProxyService* LocalDiscoveryUIHandler::GetCloudPrintProxyService() {
   return CloudPrintProxyServiceFactory::GetForProfile(
       Profile::FromWebUI(web_ui()));
 }
 #endif  // defined(CLOUD_PRINT_CONNECTOR_UI_AVAILABLE)
 
 }  // namespace local_discovery