sync: Remove TrafficRecorder

sync/sessions/sync_session_context.h

Index: sync/sessions/sync_session_context.h
diff --git a/sync/sessions/sync_session_context.h b/sync/sessions/sync_session_context.h
index c7661ce036c7874d3351187cc3b26151cfb1c0a3..7fa417359ad23020afce3f43d26a46599c519de3 100644
--- a/sync/sessions/sync_session_context.h
+++ b/sync/sessions/sync_session_context.h
@@ -19,7 +19,6 @@
 
 #include "sync/base/sync_export.h"
 #include "sync/engine/sync_engine_event_listener.h"
-#include "sync/engine/traffic_recorder.h"
 #include "sync/sessions/debug_info_getter.h"
 #include "sync/sessions/model_type_registry.h"
 
@@ -47,7 +46,6 @@ class SYNC_EXPORT_PRIVATE SyncSessionContext {
       ExtensionsActivity* extensions_activity,
       const std::vector<SyncEngineEventListener*>& listeners,
       DebugInfoGetter* debug_info_getter,
-      TrafficRecorder* traffic_recorder,
       ModelTypeRegistry* model_type_registry,
       bool keystore_encryption_enabled,
       bool client_enabled_pre_commit_update_avoidance,
@@ -96,10 +94,6 @@ class SYNC_EXPORT_PRIVATE SyncSessionContext {
     return &listeners_;
   }
 
-  TrafficRecorder* traffic_recorder() {
-    return traffic_recorder_;
-  }
-
   bool keystore_encryption_enabled() const {
     return keystore_encryption_enabled_;
   }
@@ -158,8 +152,6 @@ class SYNC_EXPORT_PRIVATE SyncSessionContext {
   // client behavior on server side.
   DebugInfoGetter* const debug_info_getter_;
 
-  TrafficRecorder* traffic_recorder_;
-
   ModelTypeRegistry* model_type_registry_;
 
   // Satus information to be sent up to the server.