Added a PolicyDomainDescriptor.

chrome/browser/policy/configuration_policy_provider.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_
 #define CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_
 
-#include <set>
-#include <string>
-
 #include "base/basictypes.h"
+#include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/policy/policy_bundle.h"
 #include "chrome/browser/policy/policy_service.h"
 
 namespace policy {
 
+class PolicyDomainDescriptor;
+
 // A mostly-abstract super class for platform-specific policy providers.
 // Platform-specific policy providers (Windows Group Policy, gconf,
 // etc.) should implement a subclass of this class.
 class ConfigurationPolicyProvider {
  public:
   class Observer {
    public:
     virtual ~Observer();
     virtual void OnUpdatePolicy(ConfigurationPolicyProvider* provider) = 0;
   };
@@ skipping 32 matching lines @@
   // which are guaranteed to happen even if the refresh fails.
   // It is possible that Shutdown() is called first though, and
   // OnUpdatePolicy won't be called if that happens.
   virtual void RefreshPolicies() = 0;
 
   // Observers must detach themselves before the provider is deleted.
   virtual void AddObserver(Observer* observer);
   virtual void RemoveObserver(Observer* observer);
 
   // Notifies the provider that there is interest in loading policy for the
-  // listed components of the given |domain|. The list is complete; all the
+  // listed components in the given |descriptor|. The list is complete; all the
   // components that matter for the domain are included, and components not
   // included can be discarded. The provider can ignore this information or use
   // it to selectively load the corresponding policy from its sources.
   virtual void RegisterPolicyDomain(
-      PolicyDomain domain,
-      const std::set<std::string>& component_ids);
+      scoped_refptr<const PolicyDomainDescriptor> descriptor);
 
  protected:
   // Subclasses must invoke this to update the policies currently served by
   // this provider. UpdatePolicy() takes ownership of |policies|.
   // The observers are notified after the policies are updated.
   void UpdatePolicy(scoped_ptr<PolicyBundle> bundle);
 
  private:
   // The policies currently configured at this provider.
   PolicyBundle policy_bundle_;
 
   // Whether Shutdown() has been invoked.
   bool did_shutdown_;
 
   ObserverList<Observer, true> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(ConfigurationPolicyProvider);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_