[GCM] Add ConnectionListener support, and hook up to debug page

google_apis/gcm/gcm_client_impl.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 GOOGLE_APIS_GCM_GCM_CLIENT_IMPL_H_
 #define GOOGLE_APIS_GCM_GCM_CLIENT_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 56 matching lines @@
       scoped_refptr<net::HttpNetworkSession> network_session,
       net::NetLog* net_log,
       GCMStatsRecorder* recorder);
 };
 
 // Implements the GCM Client. It is used to coordinate MCS Client (communication
 // with MCS) and other pieces of GCM infrastructure like Registration and
 // Checkins. It also allows for registering user delegates that host
 // applications that send and receive messages.
 class GCM_EXPORT GCMClientImpl
-    : public GCMClient, public GCMStatsRecorder::Delegate {
+    : public GCMClient, public GCMStatsRecorder::Delegate,
+      public ConnectionFactory::ConnectionListener {
  public:
   explicit GCMClientImpl(scoped_ptr<GCMInternalsBuilder> internals_builder);
   virtual ~GCMClientImpl();
 
-  // Overridden from GCMClient:
+  // GCMClient implementation.
   virtual void Initialize(
       const ChromeBuildInfo& chrome_build_info,
       const base::FilePath& store_path,
       const std::vector<std::string>& account_ids,
       const scoped_refptr<base::SequencedTaskRunner>& blocking_task_runner,
       const scoped_refptr<net::URLRequestContextGetter>&
           url_request_context_getter,
       scoped_ptr<Encryptor> encryptor,
       GCMClient::Delegate* delegate) OVERRIDE;
   virtual void Start() OVERRIDE;
   virtual void Stop() OVERRIDE;
   virtual void CheckOut() OVERRIDE;
   virtual void Register(const std::string& app_id,
                         const std::vector<std::string>& sender_ids) OVERRIDE;
   virtual void Unregister(const std::string& app_id) OVERRIDE;
   virtual void Send(const std::string& app_id,
                     const std::string& receiver_id,
                     const OutgoingMessage& message) OVERRIDE;
   virtual void SetRecording(bool recording) OVERRIDE;
   virtual void ClearActivityLogs() OVERRIDE;
   virtual GCMStatistics GetStatistics() const OVERRIDE;
+
+  // GCMStatsRecorder::Delegate implemenation.
   virtual void OnActivityRecorded() OVERRIDE;
 
+  // ConnectionFactory::ConnectionListener implementation.
+  virtual void OnConnected(const GURL& current_endpoint,
+                           const net::IPEndPoint& socket_ip) OVERRIDE;
+  virtual void OnDisconnected() OVERRIDE;
+
  private:
   // State representation of the GCMClient.
   // Any change made to this enum should have corresponding change in the
   // GetStateString(...) function.
   enum State {
     // Uninitialized.
     UNINITIALIZED,
     // Initialized,
     INITIALIZED,
     // GCM store loading is in progress.
@@ skipping 176 matching lines @@
 
   // Factory for creating references in callbacks.
   base::WeakPtrFactory<GCMClientImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMClientImpl);
 };
 
 }  // namespace gcm
 
 #endif  // GOOGLE_APIS_GCM_GCM_CLIENT_IMPL_H_