Don't drop debug_info when posting to sync server fails

sync/sessions/debug_info_getter.h

 // Copyright 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.
 
 #ifndef SYNC_SESSIONS_DEBUG_INFO_GETTER_H_
 #define SYNC_SESSIONS_DEBUG_INFO_GETTER_H_
 
 #include "sync/base/sync_export.h"
 #include "sync/protocol/sync.pb.h"
 
 namespace syncer {
 namespace sessions {
 
 // This is the interface that needs to be implemented by the event listener
 // to communicate the debug info data to the syncer.
 class SYNC_EXPORT_PRIVATE DebugInfoGetter {
  public:
-  // Gets the client debug info and clears the state so the same data is not
-  // sent again.
-  virtual void GetAndClearDebugInfo(sync_pb::DebugInfo* debug_info) = 0;
+  // Gets the client debug info. Be sure to clear the info to ensure the data
+  // isn't sent multiple times.
+  virtual void GetDebugInfo(sync_pb::DebugInfo* debug_info) = 0;
+
+  // Clears the debug info.
+  virtual void ClearDebugInfo() = 0;
+
   virtual ~DebugInfoGetter() {}
 };
 
 }  // namespace sessions
 }  // namespace syncer
 
 #endif  // SYNC_SESSIONS_DEBUG_INFO_GETTER_H_
-