Get rid of content dependency from sandbox_policy.h

sandbox/src/sandbox_policy_base.h

 // Copyright (c) 2006-2009 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 SANDBOX_SRC_SANDBOX_POLICY_BASE_H_
 #define SANDBOX_SRC_SANDBOX_POLICY_BASE_H_
 
 #include <windows.h>
 #include <list>
 
@@ skipping 13 matching lines @@
 class LowLevelPolicy;
 struct PolicyGlobal;
 
 // We act as a policy dispatcher, implementing the handler for the "ping" IPC,
 // so we have to provide the appropriate handler on the OnMessageReady method.
 // There is a static_cast for the handler, and the compiler only performs the
 // cast if the first base class is Dispatcher.
 class PolicyBase : public Dispatcher, public TargetPolicy {
  public:
   PolicyBase();
-  ~PolicyBase();
 
   virtual void AddRef() {
     ::InterlockedIncrement(&ref_count);
   }
 
   virtual void Release() {
     if (0 == ::InterlockedDecrement(&ref_count))
       delete this;
   }
 
@@ skipping 72 matching lines @@
 
   // Overrides Dispatcher::OnMessageReady.
   virtual Dispatcher* OnMessageReady(IPCParams* ipc, CallbackGeneric* callback);
 
   // Dispatcher interface.
   virtual bool SetupService(InterceptionManager* manager, int service);
 
   virtual EvalResult EvalPolicy(int service, CountedParameterSetBase* params);
 
  private:
+  ~PolicyBase();
+
   // Test IPC providers.
   bool Ping(IPCInfo* ipc, void* cookie);
 
   // Returns a dispatcher from ipc_targets_.
   Dispatcher* GetDispatcher(int ipc_tag);
 
   // Sets up interceptions for a new target.
   bool SetupAllInterceptions(TargetProcess* target);
 
   // This lock synchronizes operations on the targets_ collection.
@@ skipping 28 matching lines @@
 
   static HDESK alternate_desktop_handle_;
   static HWINSTA alternate_winstation_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyBase);
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_SRC_SANDBOX_POLICY_BASE_H_