net: Fix more clang warnings about missing virtual and OVERRIDE annotations.

net/test/local_test_server_posix.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 "net/test/local_test_server.h"
 
 #include <poll.h>
 
 #include <vector>
 
@@ skipping 13 matching lines @@
 // from which the test server was launched) and |port_string| (the port used by
 // the test server), and if the parent pid of the process is 1 (indicating that
 // it is an orphaned process).
 class OrphanedTestServerFilter : public base::ProcessFilter {
  public:
   OrphanedTestServerFilter(
       const std::string& path_string, const std::string& port_string)
       : path_string_(path_string),
         port_string_(port_string) {}
 
-  virtual bool Includes(const base::ProcessEntry& entry) const {
+  virtual bool Includes(const base::ProcessEntry& entry) const OVERRIDE {
     if (entry.parent_pid() != 1)
       return false;
     bool found_path_string = false;
     bool found_port_string = false;
     for (std::vector<std::string>::const_iterator it =
          entry.cmd_line_args().begin();
          it != entry.cmd_line_args().end();
          ++it) {
       if (it->find(path_string_) != std::string::npos)
         found_path_string = true;
@@ skipping 116 matching lines @@
 
   if (!ParseServerData(server_data)) {
     LOG(ERROR) << "Could not parse server_data: " << server_data;
     return false;
   }
 
   return true;
 }
 
 }  // namespace net