Standardize usage of virtual/override/final specifiers.

content/browser/renderer_host/websocket_dispatcher_host_unittest.cc

Index: content/browser/renderer_host/websocket_dispatcher_host_unittest.cc
diff --git a/content/browser/renderer_host/websocket_dispatcher_host_unittest.cc b/content/browser/renderer_host/websocket_dispatcher_host_unittest.cc
index d59a3c4ef51baa9ce0d41486cff27e96fa989e66..0d2e7057bbcef5c0d90dadebc580843114e208bd 100644
--- a/content/browser/renderer_host/websocket_dispatcher_host_unittest.cc
+++ b/content/browser/renderer_host/websocket_dispatcher_host_unittest.cc
@@ -60,7 +60,7 @@ class WebSocketDispatcherHostTest : public ::testing::Test {
                    base::Unretained(this)));
   }
 
-  virtual ~WebSocketDispatcherHostTest() {
+  ~WebSocketDispatcherHostTest() override {
     // We need to invalidate the issued WeakPtrs at the beginning of the
     // destructor in order not to access destructed member variables.
     weak_ptr_factory_.InvalidateWeakPtrs();