Remove ClientSession::EventHandler::OnSessionSequenceNumber()

The callback was not used

Review URL: https://codereview.chromium.org/387123003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282782 0039d316-1c4b-4281-b951-d872f2087c98

remoting/host/chromoting_host.cc

@@ -263,11 +263,6 @@ void ChromotingHost::OnSessionClosed(ClientSession* client) {
   delete client;
 }
 
-void ChromotingHost::OnSessionSequenceNumber(ClientSession* session,
-                                             int64 sequence_number) {
-  DCHECK(CalledOnValidThread());
-}
-
 void ChromotingHost::OnSessionRouteChange(
     ClientSession* session,
     const std::string& channel_name,

remoting/host/chromoting_host.h

@@ -126,8 +126,6 @@ class ChromotingHost : public base::NonThreadSafe,
   virtual void OnSessionClientCapabilities(ClientSession* client) OVERRIDE;
   virtual void OnSessionAuthenticationFailed(ClientSession* client) OVERRIDE;
   virtual void OnSessionClosed(ClientSession* session) OVERRIDE;
-  virtual void OnSessionSequenceNumber(ClientSession* session,
-                                       int64 sequence_number) OVERRIDE;
   virtual void OnSessionRouteChange(
       ClientSession* session,
       const std::string& channel_name,

remoting/host/client_session.cc

@@ -424,8 +424,6 @@ void ClientSession::OnSequenceNumberUpdated(
 
   if (video_scheduler_.get())
     video_scheduler_->UpdateSequenceNumber(sequence_number);
-
-  event_handler_->OnSessionSequenceNumber(this, sequence_number);
 }
 
 void ClientSession::OnRouteChange(

remoting/host/client_session.h

@@ -78,11 +78,6 @@ class ClientSession
     // Called after connection has failed or after the client closed it.
     virtual void OnSessionClosed(ClientSession* client) = 0;
 
-    // Called to notify of each message's sequence number. The
-    // callback must not tear down this object.
-    virtual void OnSessionSequenceNumber(ClientSession* client,
-                                         int64 sequence_number) = 0;
-
     // Called on notification of a route change event, when a channel is
     // connected.
     virtual void OnSessionRouteChange(

remoting/host/host_mock_objects.h

@@ -74,8 +74,6 @@ class MockClientSessionEventHandler : public ClientSession::EventHandler {
   MOCK_METHOD1(OnSessionClientCapabilities, void(ClientSession* client));
   MOCK_METHOD1(OnSessionAuthenticationFailed, void(ClientSession* client));
   MOCK_METHOD1(OnSessionClosed, void(ClientSession* client));
-  MOCK_METHOD2(OnSessionSequenceNumber, void(ClientSession* client,
-                                             int64 sequence_number));
   MOCK_METHOD3(OnSessionRouteChange, void(
       ClientSession* client,
       const std::string& channel_name,