Notify cacheinvalidations about network status

sync/notifier/gcm_network_channel.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 SYNC_NOTIFIER_GCM_NETWORK_CHANNEL_H_
 #define SYNC_NOTIFIER_GCM_NETWORK_CHANNEL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/base/backoff_entry.h"
+#include "net/base/network_change_notifier.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "sync/base/sync_export.h"
 #include "sync/notifier/gcm_network_channel_delegate.h"
 #include "sync/notifier/sync_system_resources.h"
 #include "url/gurl.h"
 
 class GoogleServiceAuthError;
 
 namespace syncer {
 class GCMNetworkChannel;
@@ skipping 16 matching lines @@
   std::string registration_id_;
   gcm::GCMClient::Result registration_result_;
   int sent_messages_count_;
 };
 
 // GCMNetworkChannel is an implementation of SyncNetworkChannel that routes
 // messages through GCMProfileService.
 class SYNC_EXPORT_PRIVATE GCMNetworkChannel
     : public SyncNetworkChannel,
       public net::URLFetcherDelegate,
+      public net::NetworkChangeNotifier::NetworkChangeObserver,
       public base::NonThreadSafe {
  public:
   GCMNetworkChannel(
       scoped_refptr<net::URLRequestContextGetter> request_context_getter,
       scoped_ptr<GCMNetworkChannelDelegate> delegate);
 
   virtual ~GCMNetworkChannel();
 
   // invalidation::NetworkChannel implementation.
   virtual void SendMessage(const std::string& message) OVERRIDE;
   virtual void SetMessageReceiver(
       invalidation::MessageCallback* incoming_receiver) OVERRIDE;
 
   // SyncNetworkChannel implementation.
   virtual void UpdateCredentials(const std::string& email,
                                  const std::string& token) OVERRIDE;
   virtual void RequestDetailedStatus(
       base::Callback<void(const base::DictionaryValue&)> callback) OVERRIDE;
 
   // URLFetcherDelegate implementation.
   virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
 
+  // NetworkChangeObserver implementation.
+  virtual void OnNetworkChanged(
+      net::NetworkChangeNotifier::ConnectionType connection_type) OVERRIDE;
+
  protected:
   void ResetRegisterBackoffEntryForTest(
       const net::BackoffEntry::Policy* policy);
 
   virtual GURL BuildUrl(const std::string& registration_id);
 
  private:
   friend class GCMNetworkChannelTest;
   void Register();
   void OnRegisterComplete(const std::string& registration_id,
@@ skipping 36 matching lines @@
   GCMNetworkChannelDiagnostic diagnostic_info_;
 
   base::WeakPtrFactory<GCMNetworkChannel> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMNetworkChannel);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_NOTIFIER_GCM_NETWORK_CHANNEL_H_