Update {virtual,override} to follow C++11 style in components.

components/nacl/browser/nacl_broker_host_win.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 "components/nacl/browser/nacl_broker_host_win.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "components/nacl/browser/nacl_broker_service_win.h"
 #include "components/nacl/browser/nacl_browser.h"
 #include "components/nacl/common/nacl_cmd_line.h"
 #include "components/nacl/common/nacl_messages.h"
 #include "components/nacl/common/nacl_process_type.h"
 #include "components/nacl/common/nacl_switches.h"
 #include "content/public/browser/browser_child_process_host.h"
 #include "content/public/browser/child_process_data.h"
 #include "content/public/common/child_process_host.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/sandboxed_process_launcher_delegate.h"
 #include "ipc/ipc_switches.h"
 
 namespace {
 // NOTE: changes to this class need to be reviewed by the security team.
 class NaClBrokerSandboxedProcessLauncherDelegate
     : public content::SandboxedProcessLauncherDelegate {
  public:
   NaClBrokerSandboxedProcessLauncherDelegate() {}
-  virtual ~NaClBrokerSandboxedProcessLauncherDelegate() {}
+  ~NaClBrokerSandboxedProcessLauncherDelegate() override {}
 
-  virtual bool ShouldSandbox() override {
+  bool ShouldSandbox() override {
     return false;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NaClBrokerSandboxedProcessLauncherDelegate);
 };
 }  // namespace
 
 namespace nacl {
 
@@ skipping 69 matching lines @@
   NaClBrokerService::GetInstance()->OnDebugExceptionHandlerLaunched(pid,
                                                                     success);
 }
 
 void NaClBrokerHost::StopBroker() {
   is_terminating_ = true;
   process_->Send(new NaClProcessMsg_StopBroker());
 }
 
 }  // namespace nacl