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

chrome/browser/local_discovery/service_discovery_client_impl.h

 // Copyright 2014 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_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_
 #define CHROME_BROWSER_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 43 matching lines @@
  public:
   ServiceWatcherImpl(const std::string& service_type,
                      const ServiceWatcher::UpdatedCallback& callback,
                      net::MDnsClient* mdns_client);
   // Listening will automatically stop when the destructor is called.
   ~ServiceWatcherImpl() override;
 
   // ServiceWatcher implementation:
   void Start() override;
 
-  void DiscoverNewServices(bool force_update) override;
+  void DiscoverNewServices() override;
 
   void SetActivelyRefreshServices(bool actively_refresh_services) override;
 
   std::string GetServiceType() const override;
 
   void OnRecordUpdate(net::MDnsListener::UpdateType update,
                       const net::RecordParsed* record) override;
 
   void OnNsecRecord(const std::string& name, unsigned rrtype) override;
 
@@ skipping 48 matching lines @@
   using ServiceListenersMap =
       std::map<std::string, std::unique_ptr<ServiceListeners>>;
 
   void ReadCachedServices();
   void AddService(const std::string& service);
   void RemovePTR(const std::string& service);
   void RemoveSRV(const std::string& service);
   void AddSRV(const std::string& service);
   bool CreateTransaction(bool active,
                          bool alert_existing_services,
-                         bool force_refresh,
                          std::unique_ptr<net::MDnsTransaction>* transaction);
 
   void DeferUpdate(ServiceWatcher::UpdateType update_type,
                    const std::string& service_name);
   void DeliverDeferredUpdate(ServiceWatcher::UpdateType update_type,
                              const std::string& service_name);
 
   void ScheduleQuery(int timeout_seconds);
 
-  void SendQuery(int next_timeout_seconds, bool force_update);
+  void SendQuery(int next_timeout_seconds);
 
   const std::string service_type_;
   ServiceListenersMap services_;
   std::unique_ptr<net::MDnsTransaction> transaction_network_;
   std::unique_ptr<net::MDnsTransaction> transaction_cache_;
   std::unique_ptr<net::MDnsListener> listener_;
 
   ServiceWatcher::UpdatedCallback callback_;
   bool started_;
   bool actively_refresh_services_;
@@ skipping 109 matching lines @@
 
   base::CancelableCallback<void()> timeout_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalDomainResolverImpl);
 };
 
 
 }  // namespace local_discovery
 
 #endif  // CHROME_BROWSER_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_