Beginning of support for extension content verification

extensions/browser/extension_system.h

 // Copyright 2014 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_EXTENSION_SYSTEM_H_
 #define EXTENSIONS_BROWSER_EXTENSION_SYSTEM_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "extensions/common/extension.h"
 
 class ExtensionService;
 
 #if defined(OS_CHROMEOS)
 namespace chromeos {
 class DeviceLocalAccountManagementPolicyProvider;
 }
 #endif  // defined(OS_CHROMEOS)
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 
 class Blacklist;
+class ContentVerifier;
 class ErrorConsole;
 class EventRouter;
 class Extension;
 class ExtensionWarningService;
 class InfoMap;
 class InstallVerifier;
 class LazyBackgroundTaskQueue;
 class ManagementPolicy;
 class OneShotEvent;
 class ProcessManager;
@@ skipping 78 matching lines @@
 
   // Called by the ExtensionService that lives in this system. Lets the
   // info map clean up its RequestContexts once all the listeners to the
   // EXTENSION_UNLOADED notification have finished running.
   virtual void UnregisterExtensionWithRequestContexts(
       const std::string& extension_id,
       const UnloadedExtensionInfo::Reason reason) {}
 
   // Signaled when the extension system has completed its startup tasks.
   virtual const OneShotEvent& ready() const = 0;
+
+  // Returns the content verifier, if any.
+  virtual ContentVerifier* content_verifier();
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_SYSTEM_H_