policy: use JSON schema to deserialize entries from Windows registry.

chrome/browser/policy/async_policy_loader.cc

Index: chrome/browser/policy/async_policy_loader.cc
diff --git a/chrome/browser/policy/async_policy_loader.cc b/chrome/browser/policy/async_policy_loader.cc
index f482e2063e6a85958bc0d7a8a9c1b89d55d14a84..f78ddee1d03c96878ebd5d7ac1669216582cfb48 100644
--- a/chrome/browser/policy/async_policy_loader.cc
+++ b/chrome/browser/policy/async_policy_loader.cc
@@ -68,6 +68,14 @@ void AsyncPolicyLoader::Reload(bool force) {
   ScheduleNextReload(TimeDelta::FromSeconds(kReloadIntervalSeconds));
 }
 
+scoped_refptr<const PolicyDomainDescriptor> AsyncPolicyLoader::get_descriptor(
+    PolicyDomain domain) const {
+  DescriptorMap::const_iterator iter = descriptor_map().find(domain);
+  if (iter != descriptor_map().end())
+    return iter->second;
+  return NULL;
+}
+
 void AsyncPolicyLoader::RegisterPolicyDomain(
     scoped_refptr<const PolicyDomainDescriptor> descriptor) {
   InitialRegisterPolicyDomain(descriptor);