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

chrome/browser/local_discovery/service_discovery_client.h

 // 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.
 
 #ifndef CHROME_BROWSER_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_H_
 #define CHROME_BROWSER_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 45 matching lines @@
   // Called when a service has been added or removed for a certain service name.
   typedef base::Callback<void(UpdateType, const std::string&)> UpdatedCallback;
 
   // Listening will automatically stop when the destructor is called.
   virtual ~ServiceWatcher() {}
 
   // Start the service type watcher.
   virtual void Start() = 0;
 
   // Probe for services of this type.
-  virtual void DiscoverNewServices(bool force_update) = 0;
+  virtual void DiscoverNewServices() = 0;
 
   virtual void SetActivelyRefreshServices(bool actively_refresh_services) = 0;
 
   virtual std::string GetServiceType() const = 0;
 };
 
 // Represents a service on the network and allows users to access the service's
 // address and metadata. See |ServiceDiscoveryClient::CreateServiceResolver|.
 class ServiceResolver {
  public:
@@ skipping 48 matching lines @@
   // Create a resolver for local domain, both ipv4 or ipv6.
   virtual std::unique_ptr<LocalDomainResolver> CreateLocalDomainResolver(
       const std::string& domain,
       net::AddressFamily address_family,
       const LocalDomainResolver::IPAddressCallback& callback) = 0;
 };
 
 }  // namespace local_discovery
 
 #endif  // CHROME_BROWSER_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_H_