Standardize usage of virtual/override/final specifiers.

chrome/browser/media/chrome_webrtc_disable_encryption_flag_browsertest.cc

 // Copyright 2014 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 "base/command_line.h"
 #include "chrome/browser/media/webrtc_browsertest_base.h"
 #include "chrome/browser/media/webrtc_browsertest_common.h"
 #include "chrome/common/chrome_version_info.h"
 #include "content/public/common/content_switches.h"
 #include "media/base/media_switches.h"
@@ skipping 11 matching lines @@
 // is actually built for that channel. This is not ideal. One can test manually
 // by e.g. faking the channel returned in VersionInfo::GetChannel(). It's
 // likely good to have the test anyway, even though a failure might not be
 // detected until a branch has been promoted to another channel. The unit
 // test for ChromeContentBrowserClient::MaybeCopyDisableWebRtcEncryptionSwitch
 // tests for all channels however.
 // TODO(grunell): Test the different channel cases for any build.
 class WebRtcDisableEncryptionFlagBrowserTest : public WebRtcTestBase {
  public:
   WebRtcDisableEncryptionFlagBrowserTest() {}
-  virtual ~WebRtcDisableEncryptionFlagBrowserTest() {}
+  ~WebRtcDisableEncryptionFlagBrowserTest() override {}
 
   void SetUpInProcessBrowserTestFixture() override {
     DetectErrorsInJavaScript();  // Look for errors in our rather complex js.
   }
 
   void SetUpCommandLine(CommandLine* command_line) override {
     // This test should run with fake devices.
     command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
 
     // Disable encryption with the command line flag.
@@ skipping 42 matching lines @@
 
   std::string expected_string = should_detect_encryption ?
     "crypto-seen" : "no-crypto-seen";
 
   ASSERT_EQ(expected_string,
             ExecuteJavascript("hasSeenCryptoInSdp()", left_tab));
 
   HangUp(left_tab);
   HangUp(right_tab);
 }