Standardize usage of virtual/override/final specifiers.

remoting/protocol/message_reader_unittest.cc

Index: remoting/protocol/message_reader_unittest.cc
diff --git a/remoting/protocol/message_reader_unittest.cc b/remoting/protocol/message_reader_unittest.cc
index cb603683f8fd958946cf8e76a2cffec799e24b44..5c43788a299391adb3f337e6b96ee238ed28f98f 100644
--- a/remoting/protocol/message_reader_unittest.cc
+++ b/remoting/protocol/message_reader_unittest.cc
@@ -67,13 +67,9 @@ class MessageReaderTest : public testing::Test {
   }
 
  protected:
-  virtual void SetUp() override {
-    reader_.reset(new MessageReader());
-  }
+  void SetUp() override { reader_.reset(new MessageReader()); }
 
-  virtual void TearDown() override {
-    STLDeleteElements(&messages_);
-  }
+  void TearDown() override { STLDeleteElements(&messages_); }
 
   void InitReader() {
     reader_->Init(&socket_, base::Bind(