Reduce dependency of TiclInvalidationService on Profile

sync/tools/null_invalidation_state_tracker.h

Index: sync/tools/null_invalidation_state_tracker.h
diff --git a/sync/tools/null_invalidation_state_tracker.h b/sync/tools/null_invalidation_state_tracker.h
index a12844c3d06259a8b005768f0b58b6618e09197d..a54051af76887de5d18c693b948877f6799e32f1 100644
--- a/sync/tools/null_invalidation_state_tracker.h
+++ b/sync/tools/null_invalidation_state_tracker.h
@@ -6,19 +6,16 @@
 #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;