Added cache flush on network change to ServiceDiscoveryHostClient

chrome/common/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_COMMON_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_H_
 #define CHROME_COMMON_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 33 matching lines @@
 };
 
 // Lets users browse the network for services of interest or listen for changes
 // in the services they are interested in. See
 // |ServiceDiscoveryClient::CreateServiceWatcher|.
 class ServiceWatcher {
  public:
   enum UpdateType {
     UPDATE_ADDED,
     UPDATE_CHANGED,
-    UPDATE_REMOVED
+    UPDATE_REMOVED,
+    UPDATE_INVALIDATED
   };
 
   // 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;
@@ skipping 58 matching lines @@
   // Create a resolver for local domain, both ipv4 or ipv6.
   virtual scoped_ptr<LocalDomainResolver> CreateLocalDomainResolver(
       const std::string& domain,
       net::AddressFamily address_family,
       const LocalDomainResolver::IPAddressCallback& callback) = 0;
 };
 
 }  // namespace local_discovery
 
 #endif  // CHROME_COMMON_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_H_