[Mac] Properly show and hide the avatar button for the one-profile case.

chrome/test/base/testing_profile_manager.cc

Index: chrome/test/base/testing_profile_manager.cc
diff --git a/chrome/test/base/testing_profile_manager.cc b/chrome/test/base/testing_profile_manager.cc
index e96f2a54799495f914989a39211c50ae9ef55033..f8273ee41819ce33fed3dc4ec82545188b5ba22e 100644
--- a/chrome/test/base/testing_profile_manager.cc
+++ b/chrome/test/base/testing_profile_manager.cc
@@ -79,12 +79,12 @@ void TestingProfileManager::DeleteTestingProfile(const std::string& name) {
   TestingProfilesMap::iterator it = testing_profiles_.find(name);
   DCHECK(it != testing_profiles_.end());
 
-  scoped_ptr<TestingProfile> profile(it->second);
-
-  profile_manager_->profiles_info_.erase(profile->GetPath());
+  TestingProfile* profile = it->second;
 
   ProfileInfoCache& cache = profile_manager_->GetProfileInfoCache();
   cache.DeleteProfileFromCache(profile->GetPath());
+
+  profile_manager_->profiles_info_.erase(profile->GetPath());
 }
 
 ProfileManager* TestingProfileManager::profile_manager() {