replace OVERRIDE and FINAL with override and final in athena/

athena/input/accelerator_manager_unittest.cc

Index: athena/input/accelerator_manager_unittest.cc
diff --git a/athena/input/accelerator_manager_unittest.cc b/athena/input/accelerator_manager_unittest.cc
index 7e61317de3170cf13daa02c9398d1330d3d6d336..b30f0a229f046aee7d6e8d6bd6ee222d927a79c6 100644
--- a/athena/input/accelerator_manager_unittest.cc
+++ b/athena/input/accelerator_manager_unittest.cc
@@ -28,11 +28,11 @@ class TestHandler : public AcceleratorHandler {
 
  private:
   // AcceleratorHandler:
-  virtual bool IsCommandEnabled(int command_id) const OVERRIDE {
+  virtual bool IsCommandEnabled(int command_id) const override {
     return enabled_;
   }
   virtual bool OnAcceleratorFired(int command_id,
-                                  const ui::Accelerator& accelerator) OVERRIDE {
+                                  const ui::Accelerator& accelerator) override {
     fired_command_id_ = command_id;
     return true;
   }