Standardize usage of virtual/override/final in remoting/

remoting/protocol/fake_session.h

Index: remoting/protocol/fake_session.h
diff --git a/remoting/protocol/fake_session.h b/remoting/protocol/fake_session.h
index 5148688efa2e059416cfad24b041d0326fd8ca69..2e5d5ce5c56cc7d3c9d0ecf4148fbf4827fdaad4 100644
--- a/remoting/protocol/fake_session.h
+++ b/remoting/protocol/fake_session.h
@@ -23,7 +23,7 @@ extern const char kTestJid[];
 class FakeSession : public Session {
  public:
   FakeSession();
-  virtual ~FakeSession();
+  ~FakeSession() override;
 
   EventHandler* event_handler() { return event_handler_; }
 
@@ -34,15 +34,15 @@ class FakeSession : public Session {
   FakeStreamChannelFactory& fake_channel_factory() { return channel_factory_; }
 
   // Session interface.
-  virtual void SetEventHandler(EventHandler* event_handler) override;
-  virtual ErrorCode error() override;
-  virtual const std::string& jid() override;
-  virtual const CandidateSessionConfig* candidate_config() override;
-  virtual const SessionConfig& config() override;
-  virtual void set_config(const SessionConfig& config) override;
-  virtual StreamChannelFactory* GetTransportChannelFactory() override;
-  virtual StreamChannelFactory* GetMultiplexedChannelFactory() override;
-  virtual void Close() override;
+  void SetEventHandler(EventHandler* event_handler) override;
+  ErrorCode error() override;
+  const std::string& jid() override;
+  const CandidateSessionConfig* candidate_config() override;
+  const SessionConfig& config() override;
+  void set_config(const SessionConfig& config) override;
+  StreamChannelFactory* GetTransportChannelFactory() override;
+  StreamChannelFactory* GetMultiplexedChannelFactory() override;
+  void Close() override;
 
  public:
   EventHandler* event_handler_;