Enable user policy handling through the new cloud policy stack.

chrome/browser/policy/proxy_policy_provider.cc

Index: chrome/browser/policy/proxy_policy_provider.cc
diff --git a/chrome/browser/policy/proxy_policy_provider.cc b/chrome/browser/policy/proxy_policy_provider.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a019b08856af7396ab578415bc74c34e459242bd
--- /dev/null
+++ b/chrome/browser/policy/proxy_policy_provider.cc
@@ -0,0 +1,48 @@
+// 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.
+
+#include "chrome/browser/policy/proxy_policy_provider.h"
+
+#include "policy/policy_constants.h"
+
+namespace policy {
+
+ProxyPolicyProvider::ProxyPolicyProvider()
+    : ConfigurationPolicyProvider(GetChromePolicyDefinitionList()) {}
+
+ProxyPolicyProvider::~ProxyPolicyProvider() {}
+
+void ProxyPolicyProvider::SetDelegate(ConfigurationPolicyProvider* delegate) {
+  if (delegate) {
+    registrar_.reset(new ConfigurationPolicyObserverRegistrar());
+    registrar_->Init(delegate, this);
+    OnUpdatePolicy(delegate);
+  } else {
+    registrar_.reset();
+    UpdatePolicy(scoped_ptr<PolicyBundle>(new PolicyBundle()));
+  }
+}
+
+void ProxyPolicyProvider::RefreshPolicies() {
+  if (registrar_.get())
+    registrar_->provider()->RefreshPolicies();
+  else
+    UpdatePolicy(scoped_ptr<PolicyBundle>(new PolicyBundle()));
+}
+
+void ProxyPolicyProvider::OnUpdatePolicy(
+    ConfigurationPolicyProvider* provider) {
+  DCHECK_EQ(registrar_->provider(), provider);
+  scoped_ptr<PolicyBundle> bundle(new PolicyBundle());
+  bundle->CopyFrom(registrar_->provider()->policies());
+  UpdatePolicy(bundle.Pass());
+}
+
+void ProxyPolicyProvider::OnProviderGoingAway(
+    ConfigurationPolicyProvider* provider) {
+  registrar_.reset();
+  UpdatePolicy(scoped_ptr<PolicyBundle>(new PolicyBundle()));
+}
+
+}  // namespace policy