Add OVERRIDE to remoting/.

remoting/host/in_memory_host_config.h

Index: remoting/host/in_memory_host_config.h
diff --git a/remoting/host/in_memory_host_config.h b/remoting/host/in_memory_host_config.h
index e96fdb40218cb5a17c5d77b5a5bb8ced9874b9c6..4043e83ba5103e7ba01aa4461797b27f4ad2447c 100644
--- a/remoting/host/in_memory_host_config.h
+++ b/remoting/host/in_memory_host_config.h
@@ -25,13 +25,15 @@ class InMemoryHostConfig : public MutableHostConfig {
   virtual ~InMemoryHostConfig();
 
   // MutableHostConfig interface.
-  virtual bool GetString(const std::string& path, std::string* out_value);
-  virtual bool GetBoolean(const std::string& path, bool* out_value);
+  virtual bool GetString(const std::string& path,
+                         std::string* out_value) OVERRIDE;
+  virtual bool GetBoolean(const std::string& path, bool* out_value) OVERRIDE;
 
-  virtual void SetString(const std::string& path, const std::string& in_value);
-  virtual void SetBoolean(const std::string& path, bool in_value);
+  virtual void SetString(const std::string& path,
+                         const std::string& in_value) OVERRIDE;
+  virtual void SetBoolean(const std::string& path, bool in_value) OVERRIDE;
 
-  virtual void Save();
+  virtual void Save() OVERRIDE;
 
  protected:
   // |lock_| must be locked whenever |values_| is used.