Standardize usage of virtual/override/final in chrome/browser/media

chrome/browser/media/chrome_webrtc_getmediadevices_browsertest.cc

Index: chrome/browser/media/chrome_webrtc_getmediadevices_browsertest.cc
diff --git a/chrome/browser/media/chrome_webrtc_getmediadevices_browsertest.cc b/chrome/browser/media/chrome_webrtc_getmediadevices_browsertest.cc
index 75108412f3d04484bcdf79bd6d2d56674977bf9c..bca404e7a4164e9c40808cf907d95bdf33cda744 100644
--- a/chrome/browser/media/chrome_webrtc_getmediadevices_browsertest.cc
+++ b/chrome/browser/media/chrome_webrtc_getmediadevices_browsertest.cc
@@ -43,11 +43,11 @@ class WebRtcGetMediaDevicesBrowserTest
       : has_audio_output_devices_initialized_(false),
         has_audio_output_devices_(false) {}
 
-  virtual void SetUpInProcessBrowserTestFixture() override {
+  void SetUpInProcessBrowserTestFixture() override {
     DetectErrorsInJavaScript();  // Look for errors in our rather complex js.
   }
 
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(CommandLine* command_line) override {
     // Ensure the infobar is enabled, since we expect that in this test.
     EXPECT_FALSE(command_line->HasSwitch(switches::kUseFakeUIForMediaStream));