Audit the destructors of classes derived from net::URLRequestContextGetter

chrome/browser/policy/device_management_service.cc

 // 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.
 
 #include "chrome/browser/policy/device_management_service.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 220 matching lines @@
  public:
   explicit DeviceManagementRequestContextGetter(
       net::URLRequestContextGetter* base_context_getter)
       : base_context_getter_(base_context_getter) {}
 
   // Overridden from net::URLRequestContextGetter:
   virtual net::URLRequestContext* GetURLRequestContext() OVERRIDE;
   virtual scoped_refptr<base::MessageLoopProxy> GetIOMessageLoopProxy()
       const OVERRIDE;
 
+ protected:
+  virtual ~DeviceManagementRequestContextGetter() {}
+
  private:
   scoped_refptr<net::URLRequestContext> context_;
   scoped_refptr<net::URLRequestContextGetter> base_context_getter_;
 };
 
 
 net::URLRequestContext*
 DeviceManagementRequestContextGetter::GetURLRequestContext() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   if (!context_) {
@@ skipping 331 matching lines @@
     }
   }
 
   const JobQueue::iterator elem =
       std::find(queued_jobs_.begin(), queued_jobs_.end(), job);
   if (elem != queued_jobs_.end())
     queued_jobs_.erase(elem);
 }
 
 }  // namespace policy