Policy providers all get a SchemaRegistry to work with.

chrome/browser/policy/schema_registry.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/policy/schema_registry.h"
 
 #include "base/logging.h"
 
 namespace policy {
 
@@ skipping 35 matching lines @@
 
 void SchemaRegistry::AddObserver(Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void SchemaRegistry::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void SchemaRegistry::Notify(bool has_new_schemas) {
-  FOR_EACH_OBSERVER(Observer,
-                    observers_,
-                    OnSchemaRegistryUpdated(schema_map_, has_new_schemas));
+  FOR_EACH_OBSERVER(
+      Observer, observers_, OnSchemaRegistryUpdated(has_new_schemas));
 }
 
 bool SchemaRegistry::HasObservers() const {
   return observers_.might_have_observers();
 }
 
 CombinedSchemaRegistry::CombinedSchemaRegistry()
     : own_schema_map_(new SchemaMap) {}
 
 CombinedSchemaRegistry::~CombinedSchemaRegistry() {}
@@ skipping 32 matching lines @@
 void CombinedSchemaRegistry::UnregisterComponent(const PolicyNamespace& ns) {
   DomainMap map(own_schema_map_->GetDomains());
   if (map[ns.domain].erase(ns.component_id) != 0) {
     own_schema_map_ = new SchemaMap(map);
     Combine(false);
   } else {
     NOTREACHED();
   }
 }
 
-void CombinedSchemaRegistry::OnSchemaRegistryUpdated(
-    const scoped_refptr<SchemaMap>& current_map,
-    bool has_new_schemas) {
+void CombinedSchemaRegistry::OnSchemaRegistryUpdated(bool has_new_schemas) {
   Combine(has_new_schemas);
 }
 
 void CombinedSchemaRegistry::Combine(bool has_new_schemas) {
   // If two registries publish a Schema for the same component then it's
   // undefined which version gets in the combined registry.
   //
   // The common case is that both registries want policy for the same component,
   // and the Schemas should be the same; in that case this makes no difference.
   //
@@ skipping 13 matching lines @@
            comp_it != reg_component_map.end(); ++comp_it) {
         map[domain_it->first][comp_it->first] = comp_it->second;
       }
     }
   }
   schema_map_ = new SchemaMap(map);
   Notify(has_new_schemas);
 }
 
 }  // namespace policy