Add ManagedModePolicyProvider and extension API to get and set policies.

chrome/browser/extensions/extension_managed_mode_api.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.
 
 // Defines the Chrome Extensions Managed Mode API relevant classes to realize
 // the API as specified in the extension API JSON.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_MANAGED_MODE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_MANAGED_MODE_API_H_
 #pragma once
@@ skipping 42 matching lines @@
   virtual ~EnterManagedModeFunction();
 
   // ExtensionFunction:
   virtual bool RunImpl() OVERRIDE;
 
  private:
   // Called when we have either successfully entered managed mode or failed.
   void SendResult(bool success);
 };
 
+
+class GetPolicyFunction : public SyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION_NAME("managedModePrivate.getPolicy")
+
+ protected:
+  virtual ~GetPolicyFunction();
+
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
+};
+
+class SetPolicyFunction : public SyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION_NAME("managedModePrivate.setPolicy")
+
+ protected:
+  virtual ~SetPolicyFunction();
+
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
+};
+
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_MANAGED_MODE_API_H_