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

chrome/browser/media/encrypted_media_browsertest.cc

Index: chrome/browser/media/encrypted_media_browsertest.cc
diff --git a/chrome/browser/media/encrypted_media_browsertest.cc b/chrome/browser/media/encrypted_media_browsertest.cc
index bd6cd7d09f256cc3f1a7c66801b6d7bf1b52e521..f3387e0bc950ed84c6cfd1e6bf8f0c9634f1e0a2 100644
--- a/chrome/browser/media/encrypted_media_browsertest.cc
+++ b/chrome/browser/media/encrypted_media_browsertest.cc
@@ -228,13 +228,13 @@ class EncryptedMediaTestBase : public MediaBrowserTest {
   scoped_ptr<TestLicenseServer> license_server_;
 
   // We want to fail quickly when a test fails because an error is encountered.
-  virtual void AddWaitForTitles(content::TitleWatcher* title_watcher) override {
+  void AddWaitForTitles(content::TitleWatcher* title_watcher) override {
     MediaBrowserTest::AddWaitForTitles(title_watcher);
     title_watcher->AlsoWaitForTitle(base::ASCIIToUTF16(kEmeNotSupportedError));
     title_watcher->AlsoWaitForTitle(base::ASCIIToUTF16(kEmeKeyError));
   }
 
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(CommandLine* command_line) override {
 #if defined(OS_ANDROID)
     command_line->AppendSwitch(
         switches::kDisableGestureRequirementForMediaPlayback);
@@ -326,7 +326,7 @@ class ECKEncryptedMediaTest : public EncryptedMediaTestBase {
   }
 
  protected:
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(CommandLine* command_line) override {
     EncryptedMediaTestBase::SetUpCommandLine(command_line);
     SetUpCommandLineForKeySystem(kExternalClearKeyKeySystem, command_line);
   }
@@ -418,7 +418,7 @@ class EncryptedMediaTest
   }
 
  protected:
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(CommandLine* command_line) override {
     EncryptedMediaTestBase::SetUpCommandLine(command_line);
     SetUpCommandLineForKeySystem(CurrentKeySystem(), command_line);