Trim code from sync's ServerConnectionManager

sync/engine/sync_scheduler.h

 // Copyright (c) 2012 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.
 //
 // A class to schedule syncer tasks intelligently.
 #ifndef SYNC_ENGINE_SYNC_SCHEDULER_H_
 #define SYNC_ENGINE_SYNC_SCHEDULER_H_
 #pragma once
 
 #include <string>
@@ skipping 328 matching lines @@
 
   // Creates a session for a poll and performs the sync.
   void PollTimerCallback();
 
   // Assign |start| and |end| to appropriate SyncerStep values for the
   // specified |purpose|.
   void SetSyncerStepsForPurpose(SyncSessionJob::SyncSessionJobPurpose purpose,
                                 SyncerStep* start,
                                 SyncerStep* end);
 
-  // Used to update |server_connection_ok_|, see below.
+  // Used to update |connection_code_|, see below.
   void UpdateServerConnectionManagerStatus(
       HttpResponse::ServerConnectionCode code);
 
   // Called once the first time thread_ is started to broadcast an initial
   // session snapshot containing data like initial_sync_ended.  Important when
   // the client starts up and does not need to perform an initial sync.
   void SendInitialSnapshot();
 
   virtual void OnActionableError(const sessions::SyncSessionSnapshot& snapshot);
 
@@ skipping 27 matching lines @@
   // Periodic timer for polling.  See AdjustPolling.
   base::RepeatingTimer<SyncScheduler> poll_timer_;
 
   // The mode of operation.
   Mode mode_;
 
   // TODO(tim): Bug 26339. This needs to track more than just time I think,
   // since the nudges could be for different types. Current impl doesn't care.
   base::TimeTicks last_sync_session_end_time_;
 
-  // Have we observed a valid server connection?
-  bool server_connection_ok_;
-
   // The latest connection code we got while trying to connect.
   HttpResponse::ServerConnectionCode connection_code_;
 
   // Tracks in-flight nudges so we can coalesce.
   scoped_ptr<SyncSessionJob> pending_nudge_;
 
   // Current wait state.  Null if we're not in backoff and not throttled.
   scoped_ptr<WaitInterval> wait_interval_;
 
   scoped_ptr<DelayProvider> delay_provider_;
 
   // Invoked to run through the sync cycle.
   scoped_ptr<Syncer> syncer_;
 
   scoped_ptr<sessions::SyncSessionContext> session_context_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncScheduler);
 };
 
 }  // namespace browser_sync
 
 #endif  // SYNC_ENGINE_SYNC_SCHEDULER_H_