Revert of Clear GCM data when the user clears cookies and other site data

chrome/browser/services/gcm/gcm_profile_service.cc

Index: chrome/browser/services/gcm/gcm_profile_service.cc
diff --git a/chrome/browser/services/gcm/gcm_profile_service.cc b/chrome/browser/services/gcm/gcm_profile_service.cc
index 069862d58cf78f7acdf4c69e1f8f47a3487b3e94..0539acc212bc5dcee3ad535f239acc9b35705254 100644
--- a/chrome/browser/services/gcm/gcm_profile_service.cc
+++ b/chrome/browser/services/gcm/gcm_profile_service.cc
@@ -116,11 +116,9 @@
   // Check is necessary to not crash browser_tests.
   if (gcm_account_tracker_)
     gcm_account_tracker_->Stop();
-  // When sign-in enforcement is not dropped, OnSignedOut will also clear all
-  // the GCM data and a new GCM ID will be retrieved after the user signs in
-  // again. Otherwise, the user sign-out will not affect the existing GCM
-  // data.
-  driver_->OnSignedOut();
+  // TODO(fgorski): If we purge here, what should happen when we get
+  // OnActiveAccountLogin() right after that?
+  driver_->Purge();
 }
 
 std::string GCMProfileService::IdentityObserver::SignedInUserName() const {