Reduce dependency of TiclInvalidationService on Profile

sync/tools/null_invalidation_state_tracker.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.
 
 #ifndef SYNC_TOOLS_NULL_INVALIDATION_STATE_TRACKER_H_
 #define SYNC_TOOLS_NULL_INVALIDATION_STATE_TRACKER_H_
 
 #include "base/compiler_specific.h"
-#include "base/memory/weak_ptr.h"
 #include "sync/notifier/invalidation_state_tracker.h"
 
 namespace syncer {
 
-class NullInvalidationStateTracker
-    : public base::SupportsWeakPtr<NullInvalidationStateTracker>,
-      public InvalidationStateTracker {
+class NullInvalidationStateTracker : public InvalidationStateTracker {
  public:
   NullInvalidationStateTracker();
   virtual ~NullInvalidationStateTracker();
 
-  virtual void SetInvalidatorClientId(const std::string& data) OVERRIDE;
+  virtual void ClearAndSetNewClientId(const std::string& data) OVERRIDE;
   virtual std::string GetInvalidatorClientId() const OVERRIDE;
 
   virtual std::string GetBootstrapData() const OVERRIDE;
   virtual void SetBootstrapData(const std::string& data) OVERRIDE;
 
   virtual void SetSavedInvalidations(
       const UnackedInvalidationsMap& states) OVERRIDE;
   virtual UnackedInvalidationsMap GetSavedInvalidations() const OVERRIDE;
 
   virtual void Clear() OVERRIDE;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_TOOLS_NULL_INVALIDATION_STATE_TRACKER_H_