RefCounted types should not have public destructors, base/ edition

base/supports_user_data.cc

Index: base/supports_user_data.cc
diff --git a/base/supports_user_data.cc b/base/supports_user_data.cc
index 2253c864f85f6cafd33558ed4fdd814428b0853c..4fe64bdf7b4f59bb5f5c7eedf08728c5552275b9 100644
--- a/base/supports_user_data.cc
+++ b/base/supports_user_data.cc
@@ -6,11 +6,7 @@
 
 namespace base {
 
-SupportsUserData::SupportsUserData() {
-}
-
-SupportsUserData::~SupportsUserData() {
-}
+SupportsUserData::SupportsUserData() {}
 
 SupportsUserData::Data* SupportsUserData::GetUserData(const void* key) const {
   DataMap::const_iterator found = user_data_.find(key);
@@ -23,4 +19,6 @@ void SupportsUserData::SetUserData(const void* key, Data* data) {
   user_data_[key] = linked_ptr<Data>(data);
 }
 
+SupportsUserData::~SupportsUserData() {}
+
 }  // namespace base