policy: load JSON schema into domain descriptor at start time.

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 "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 17 matching lines @@
   };
 
   ConfigurationPolicyProvider();
 
   // Policy providers can be deleted quite late during shutdown of the browser,
   // and it's not guaranteed that the message loops will still be running when
   // this is invoked. Override Shutdown() instead for cleanup code that needs
   // to post to the FILE thread, for example.
   virtual ~ConfigurationPolicyProvider();
 
+  // Perform an initial synchronous load before initialization.
+  virtual void InitialLoad();
+
   // Invoked as soon as the main message loops are spinning. Policy providers
   // are created early during startup to provide the initial policies; the
   // Init() call allows them to perform initialization tasks that require
   // running message loops.
   virtual void Init();
 
   // Must be invoked before deleting the provider. Implementations can override
   // this method to do appropriate cleanup while threads are still running, and
   // must also invoke ConfigurationPolicyProvider::Shutdown().
   // The provider should keep providing the current policies after Shutdown()
@@ skipping 20 matching lines @@
   virtual void RemoveObserver(Observer* observer);
 
   // Notifies the provider that there is interest in loading policy for 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(
       scoped_refptr<const PolicyDomainDescriptor> descriptor);
 
+  // Registers a policy domain without triggering a policy load.
+  virtual void InitialRegisterPolicyDomain(
+      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_