AddMergeSessionObserver   53 components/signin/core/browser/account_reconcilor.h   void AddMergeSessionObserver(MergeSessionHelper::Observer* observer);
AddMergeSessionObserver  132 components/signin/core/browser/signin_manager.h   void AddMergeSessionObserver(MergeSessionHelper::Observer* observer);
AddMergeSessionObserver   53 components/signin/core/browser/signin_tracker.cc     account_reconcilor_->AddMergeSessionObserver(this);
AddMergeSessionObserver   57 components/signin/core/browser/signin_tracker.cc     manager->AddMergeSessionObserver(this);