[Sync] Display the client server traffic log in about:sync.

sync/sessions/sync_session_context.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.
 
 // SyncSessionContext encapsulates the contextual information and engine
 // components specific to a SyncSession. A context is accessible via
 // a SyncSession so that session SyncerCommands and parts of the engine have
 // a convenient way to access other parts. In this way it can be thought of as
 // the surrounding environment for the SyncSession. The components of this
 // environment are either valid or not valid for the entire context lifetime,
@@ skipping 38 matching lines @@
 struct SyncSessionSnapshot;
 class TestScopedSessionEventListener;
 
 class SyncSessionContext {
  public:
   SyncSessionContext(ServerConnectionManager* connection_manager,
                      syncable::Directory* directory,
                      ModelSafeWorkerRegistrar* model_safe_worker_registrar,
                      ExtensionsActivityMonitor* extensions_activity_monitor,
                      const std::vector<SyncEngineEventListener*>& listeners,
-                     DebugInfoGetter* debug_info_getter);
+                     DebugInfoGetter* debug_info_getter,
+                     browser_sync::TrafficRecorder* traffic_recorder);
 
   // Empty constructor for unit tests.
   SyncSessionContext();
   virtual ~SyncSessionContext();
 
   ConflictResolver* resolver() { return resolver_; }
   ServerConnectionManager* connection_manager() {
     return connection_manager_;
   }
   syncable::Directory* directory() {
@@ skipping 48 matching lines @@
 
   // This prunes the |unthrottle_time_| map based on the |time| passed in. This
   // is called by syncer at the SYNCER_BEGIN stage.
   void PruneUnthrottledTypes(const base::TimeTicks& time);
 
   // This returns the list of currently throttled types. Unless server returns
   // new throttled types this will remain constant through out the sync cycle.
   syncable::ModelTypeSet GetThrottledTypes() const;
 
   browser_sync::TrafficRecorder* traffic_recorder() {
-    return &traffic_recorder_;
+    return traffic_recorder_;
   }
 
  private:
   typedef std::map<syncable::ModelType, base::TimeTicks> UnthrottleTimes;
 
   FRIEND_TEST_ALL_PREFIXES(SyncSessionContextTest, AddUnthrottleTimeTest);
   FRIEND_TEST_ALL_PREFIXES(SyncSessionContextTest,
                            GetCurrentlyThrottledTypesTest);
 
   // Rather than force clients to set and null-out various context members, we
@@ skipping 36 matching lines @@
   scoped_ptr<sessions::SyncSessionSnapshot> previous_session_snapshot_;
 
   // We use this to get debug info to send to the server for debugging
   // client behavior on server side.
   DebugInfoGetter* const debug_info_getter_;
 
   // This is a map from throttled data types to the time at which they can be
   // unthrottled.
   UnthrottleTimes unthrottle_times_;
 
-  // TODO(lipalani): Move the creation of this to |SyncManager|.
-  browser_sync::TrafficRecorder traffic_recorder_;
+  browser_sync::TrafficRecorder* traffic_recorder_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSessionContext);
 };
 
 // Installs a ConflictResolver to a given session context for the lifetime of
 // the ScopedSessionContextConflictResolver.  There should never be more than
 // one ConflictResolver in the system, so it is an error to use this if the
 // context already has a resolver.
 class ScopedSessionContextConflictResolver {
  public:
@@ skipping 10 matching lines @@
  private:
   SyncSessionContext* context_;
   ConflictResolver* resolver_;
   DISALLOW_COPY_AND_ASSIGN(ScopedSessionContextConflictResolver);
 };
 
 }  // namespace sessions
 }  // namespace browser_sync
 
 #endif  // SYNC_SESSIONS_SYNC_SESSION_CONTEXT_H_