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

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 05c1bb09537f80fb4df33e1b208dedc0ca4d2815..f482e2063e6a85958bc0d7a8a9c1b89d55d14a84 100644
--- a/chrome/browser/policy/async_policy_loader.cc
+++ b/chrome/browser/policy/async_policy_loader.cc
@@ -70,10 +70,8 @@ void AsyncPolicyLoader::Reload(bool force) {
 
 void AsyncPolicyLoader::RegisterPolicyDomain(
     scoped_refptr<const PolicyDomainDescriptor> descriptor) {
-  if (descriptor->domain() != POLICY_DOMAIN_CHROME) {
-    descriptor_map_[descriptor->domain()] = descriptor;
-    Reload(true);
-  }
+  InitialRegisterPolicyDomain(descriptor);
+  Reload(true);
 }
 
 scoped_ptr<PolicyBundle> AsyncPolicyLoader::InitialLoad() {
@@ -84,6 +82,11 @@ scoped_ptr<PolicyBundle> AsyncPolicyLoader::InitialLoad() {
   return Load();
 }
 
+void AsyncPolicyLoader::InitialRegisterPolicyDomain(
+    scoped_refptr<const PolicyDomainDescriptor> descriptor) {
+  descriptor_map_[descriptor->domain()] = descriptor;
+}
+
 void AsyncPolicyLoader::Init(const UpdateCallback& update_callback) {
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
   DCHECK(update_callback_.is_null());