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

chrome/browser/extensions/api/sockets_udp/sockets_udp_apitest.cc

Index: chrome/browser/extensions/api/sockets_udp/sockets_udp_apitest.cc
diff --git a/chrome/browser/extensions/api/sockets_udp/sockets_udp_apitest.cc b/chrome/browser/extensions/api/sockets_udp/sockets_udp_apitest.cc
index 332f136fe16efa0ef0f88a00926a80a92ca512dd..c2b85f81a9a5585f36be7fba09838af549ae9b40 100644
--- a/chrome/browser/extensions/api/sockets_udp/sockets_udp_apitest.cc
+++ b/chrome/browser/extensions/api/sockets_udp/sockets_udp_apitest.cc
@@ -42,12 +42,12 @@ class SocketsUdpApiTest : public ExtensionApiTest {
                             new extensions::MockHostResolverCreator()) {
   }
 
-  virtual void SetUpOnMainThread() override {
+  void SetUpOnMainThread() override {
     extensions::HostResolverWrapper::GetInstance()->SetHostResolverForTesting(
         resolver_creator_->CreateMockHostResolver());
   }
 
-  virtual void TearDownOnMainThread() override {
+  void TearDownOnMainThread() override {
     extensions::HostResolverWrapper::GetInstance()->
         SetHostResolverForTesting(NULL);
     resolver_creator_->DeleteMockHostResolver();