RefCounted types should not have public destructors, delegate cleanup

chrome/common/net/gaia/oauth2_access_token_consumer.h

Index: chrome/common/net/gaia/oauth2_access_token_consumer.h
diff --git a/chrome/common/net/gaia/oauth2_access_token_consumer.h b/chrome/common/net/gaia/oauth2_access_token_consumer.h
index cf7eb343a7f70cef24b2c10bafd7b728150790be..02998243359065d66a31f9f636a46522ccbaf9e2 100644
--- a/chrome/common/net/gaia/oauth2_access_token_consumer.h
+++ b/chrome/common/net/gaia/oauth2_access_token_consumer.h
@@ -14,10 +14,11 @@ class GoogleServiceAuthError;
 // OAuth2AccessTokenFetcher can return results.
 class OAuth2AccessTokenConsumer {
  public:
-  virtual ~OAuth2AccessTokenConsumer() {}
-
   virtual void OnGetTokenSuccess(const std::string& access_token) {}
   virtual void OnGetTokenFailure(const GoogleServiceAuthError& error) {}
+
+ protected:
+  virtual ~OAuth2AccessTokenConsumer() {}
 };
 
 #endif  // CHROME_COMMON_NET_GAIA_OAUTH2_ACCESS_TOKEN_CONSUMER_H_