Standardize usage of virtual/override/final specifiers.

content/browser/plugin_loader_posix_unittest.cc

Index: content/browser/plugin_loader_posix_unittest.cc
diff --git a/content/browser/plugin_loader_posix_unittest.cc b/content/browser/plugin_loader_posix_unittest.cc
index 0d4115edd5edeb82cd564cb779aa658597b103fa..59e30b1ddd3d863fc92cd0546e75f9aa2e77566a 100644
--- a/content/browser/plugin_loader_posix_unittest.cc
+++ b/content/browser/plugin_loader_posix_unittest.cc
@@ -77,9 +77,7 @@ class PluginLoaderPosixTest : public testing::Test {
         plugin_loader_(new MockPluginLoaderPosix) {
   }
 
-  virtual void SetUp() override {
-    PluginServiceImpl::GetInstance()->Init();
-  }
+  void SetUp() override { PluginServiceImpl::GetInstance()->Init(); }
 
   base::MessageLoop* message_loop() { return &message_loop_; }
   MockPluginLoaderPosix* plugin_loader() { return plugin_loader_.get(); }