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

content/browser/plugin_process_host.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 "content/browser/plugin_process_host.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #elif defined(OS_POSIX)
 #include <utility>  // for pair<>
@@ skipping 88 matching lines @@
  public:
   explicit PluginSandboxedProcessLauncherDelegate(ChildProcessHost* host)
 #if defined(OS_POSIX)
       : ipc_fd_(host->TakeClientFileDescriptor())
 #endif  // OS_POSIX
   {}
 
   ~PluginSandboxedProcessLauncherDelegate() override {}
 
 #if defined(OS_WIN)
-  virtual bool ShouldSandbox() override {
+  bool ShouldSandbox() override {
     return false;
   }
 
 #elif defined(OS_POSIX)
   base::ScopedFD TakeIpcFd() override { return ipc_fd_.Pass(); }
 #endif  // OS_WIN
 
  private:
 #if defined(OS_POSIX)
   base::ScopedFD ipc_fd_;
@@ skipping 307 matching lines @@
 
 void PluginProcessHost::GetContexts(const ResourceHostMsg_Request& request,
                                     ResourceContext** resource_context,
                                     net::URLRequestContext** request_context) {
   *resource_context =
       resource_context_map_[request.origin_pid].resource_context;
   *request_context = (*resource_context)->GetRequestContext();
 }
 
 }  // namespace content