Drop non-user policy in ConfigDirPolicyLoader on Chrome OS.

components/policy/core/common/policy_map.cc

Index: components/policy/core/common/policy_map.cc
diff --git a/components/policy/core/common/policy_map.cc b/components/policy/core/common/policy_map.cc
index b8c58f96cb993f5d0587b1871bf403f21f596c28..55114d76b5adca2f5965f859295fb62056c0b9aa 100644
--- a/components/policy/core/common/policy_map.cc
+++ b/components/policy/core/common/policy_map.cc
@@ -93,6 +93,18 @@ void PolicyMap::Erase(const std::string& policy) {
   map_.erase(policy);
 }
 
+void PolicyMap::EraseNonmatching(
+    const base::Callback<bool(const const_iterator)>& filter) {
+  PolicyMapType::iterator iter(map_.begin());
+  while (iter != map_.end()) {
+    if (!filter.Run(iter)) {
+      map_.erase(iter++);
+    } else {
+      ++iter;
+    }
+  }
+}
+
 void PolicyMap::Swap(PolicyMap* other) {
   map_.swap(other->map_);
 }
@@ -156,17 +168,6 @@ void PolicyMap::GetDifferingKeys(const PolicyMap& other,
       differing_keys->insert(iter_other->first);
 }
 
-void PolicyMap::FilterLevel(PolicyLevel level) {
-  PolicyMapType::iterator iter(map_.begin());
-  while (iter != map_.end()) {
-    if (iter->second.level != level) {
-      map_.erase(iter++);
-    } else {
-      ++iter;
-    }
-  }
-}
-
 bool PolicyMap::Equals(const PolicyMap& other) const {
   return other.size() == size() &&
       std::equal(begin(), end(), other.begin(), MapEntryEquals);