Add OVERRIDE to chrome/common/ and nacl/.

chrome/common/json_pref_store.h

Index: chrome/common/json_pref_store.h
diff --git a/chrome/common/json_pref_store.h b/chrome/common/json_pref_store.h
index b94030d806878bfedf8fa600ade4dae4f4175d28..1094a22633549cff5697e004cf9b9d1ffc97d4d7 100644
--- a/chrome/common/json_pref_store.h
+++ b/chrome/common/json_pref_store.h
@@ -35,24 +35,25 @@ class JsonPrefStore : public PersistentPrefStore,
 
   // PrefStore overrides:
   virtual ReadResult GetValue(const std::string& key,
-                              const base::Value** result) const;
-  virtual void AddObserver(PrefStore::Observer* observer);
-  virtual void RemoveObserver(PrefStore::Observer* observer);
-  virtual bool IsInitializationComplete() const;
+                              const base::Value** result) const OVERRIDE;
+  virtual void AddObserver(PrefStore::Observer* observer) OVERRIDE;
+  virtual void RemoveObserver(PrefStore::Observer* observer) OVERRIDE;
+  virtual bool IsInitializationComplete() const OVERRIDE;
 
   // PersistentPrefStore overrides:
   virtual ReadResult GetMutableValue(const std::string& key,
-                                     base::Value** result);
-  virtual void SetValue(const std::string& key, base::Value* value);
-  virtual void SetValueSilently(const std::string& key, base::Value* value);
-  virtual void RemoveValue(const std::string& key);
-  virtual bool ReadOnly() const;
-  virtual PrefReadError ReadPrefs();
-  virtual void ReadPrefsAsync(ReadErrorDelegate* error_delegate);
-  virtual bool WritePrefs();
-  virtual void ScheduleWritePrefs();
-  virtual void CommitPendingWrite();
-  virtual void ReportValueChanged(const std::string& key);
+                                     base::Value** result) OVERRIDE;
+  virtual void SetValue(const std::string& key, base::Value* value) OVERRIDE;
+  virtual void SetValueSilently(const std::string& key,
+                                base::Value* value) OVERRIDE;
+  virtual void RemoveValue(const std::string& key) OVERRIDE;
+  virtual bool ReadOnly() const OVERRIDE;
+  virtual PrefReadError ReadPrefs() OVERRIDE;
+  virtual void ReadPrefsAsync(ReadErrorDelegate* error_delegate) OVERRIDE;
+  virtual bool WritePrefs() OVERRIDE;
+  virtual void ScheduleWritePrefs() OVERRIDE;
+  virtual void CommitPendingWrite() OVERRIDE;
+  virtual void ReportValueChanged(const std::string& key) OVERRIDE;
 
   // This method is called after JSON file has been read. Method takes
   // ownership of the |value| pointer. Note, this method is used with
@@ -62,7 +63,7 @@ class JsonPrefStore : public PersistentPrefStore,
 
  private:
   // ImportantFileWriter::DataSerializer overrides:
-  virtual bool SerializeData(std::string* output);
+  virtual bool SerializeData(std::string* output) OVERRIDE;
 
   FilePath path_;
   scoped_refptr<base::MessageLoopProxy> file_message_loop_proxy_;