Add policy controlled permission block list for extensions

extensions/browser/management_policy.h

 // Copyright 2013 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 EXTENSIONS_BROWSER_MANAGEMENT_POLICY_H_
 #define EXTENSIONS_BROWSER_MANAGEMENT_POLICY_H_
 
 #include <set>
 #include <string>
+#include <vector>
 
 #include "base/basictypes.h"
 #include "extensions/common/extension.h"
 
 namespace extensions {
 
 // This class registers providers that want to prohibit certain actions from
 // being applied to extensions. It must be called, via the ExtensionService,
 // before allowing a user or a user-level mechanism to perform the respective
 // action. (That is, installing or otherwise modifying an extension in order
@@ skipping 60 matching lines @@
 
   ManagementPolicy();
   ~ManagementPolicy();
 
   // Registers or unregisters a provider, causing it to be added to or removed
   // from the list of providers queried. Ownership of the provider remains with
   // the caller. Providers do not need to be unregistered on shutdown.
   void RegisterProvider(Provider* provider);
   void UnregisterProvider(Provider* provider);
 
+  // Like RegisterProvider(), but registers multiple providers instead.
+  void RegisterProviders(std::vector<Provider*> providers);
+
   // Returns true if the user is permitted to install, load, and run the given
   // extension. If not, |error| may be set to an appropriate message.
   bool UserMayLoad(const Extension* extension, base::string16* error) const;
 
   // Returns true if the user is permitted to enable, disable, or uninstall the
   // given extension, or change the extension's usage options (incognito mode,
   // file access, etc.). If not, |error| may be set to an appropriate message.
   bool UserMayModifySettings(const Extension* extension,
                              base::string16* error) const;
 
@@ skipping 33 matching lines @@
                            base::string16* error) const;
 
   ProviderList providers_;
 
   DISALLOW_COPY_AND_ASSIGN(ManagementPolicy);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_MANAGEMENT_POLICY_H_