Implement Stub for policy bridge to ARC

chrome/browser/chromeos/arc/arc_policy_bridge.h

Index: chrome/browser/chromeos/arc/arc_policy_bridge.h
diff --git a/chrome/browser/chromeos/arc/arc_policy_bridge.h b/chrome/browser/chromeos/arc/arc_policy_bridge.h
new file mode 100644
index 0000000000000000000000000000000000000000..f6afaec698321a2c110ab07dbe18ad6d2baa8984
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+++ b/chrome/browser/chromeos/arc/arc_policy_bridge.h
@@ -0,0 +1,44 @@
+// Copyright 2016 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_CHROMEOS_ARC_ARC_POLICY_BRIDGE_H_
+#define CHROME_BROWSER_CHROMEOS_ARC_ARC_POLICY_BRIDGE_H_
+
+#include "components/arc/arc_bridge_service.h"
+#include "components/arc/arc_service.h"
+#include "components/policy/core/common/policy_service.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace arc {
+
+class ArcPolicyBridge : public ArcService,
+                        public ArcBridgeService::Observer,
+                        public PolicyHost,
+                        public policy::PolicyService::Observer {
+ public:
+  explicit ArcPolicyBridge(ArcBridgeService* bridge_service);
+  ~ArcPolicyBridge() override;
+
+  // ArcBridgeService::Observer overrides.
+  void OnPolicyInstanceReady() override;
+  void OnPolicyInstanceClosed() override;
+
+  // PolicyHost overrides.
+  void GetPolicies(const GetPoliciesCallback& callback) override;
+
+  // PolicyService::Observer overrides.
+  void OnPolicyUpdated(const policy::PolicyNamespace& ns,
+                       const policy::PolicyMap& previous,
+                       const policy::PolicyMap& current) override;
+
+ private:
+  mojo::Binding<PolicyHost> binding_;
+  policy::PolicyService* policy_service_ = nullptr;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcPolicyBridge);
+};
+
+}  // namespace arc
+
+#endif  // CHROME_BROWSER_CHROMEOS_ARC_ARC_POLICY_BRIDGE_H_