virtual/override specifier cleanup in ui/ (mostly Ozone code).

ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h

Index: ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h
diff --git a/ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h b/ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h
index cc82c9b7fcf591b4dba932123c44a0e35ea408de..a2d49129714913a8b9a752ebc0960cc86dbfe5a9 100644
--- a/ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h
+++ b/ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h
@@ -14,19 +14,19 @@ class EVENTS_OZONE_LAYOUT_EXPORT StubKeyboardLayoutEngine
     : public KeyboardLayoutEngine {
  public:
   StubKeyboardLayoutEngine();
-  virtual ~StubKeyboardLayoutEngine();
+  ~StubKeyboardLayoutEngine() override;
 
   // KeyboardLayoutEngineOzone:
-  virtual bool CanSetCurrentLayout() const override;
-  virtual bool SetCurrentLayoutByName(const std::string& layout_name) override;
-  virtual bool UsesISOLevel5Shift() const override;
-  virtual bool UsesAltGr() const override;
-  virtual bool Lookup(DomCode dom_code,
-                      int flags,
-                      DomKey* dom_key,
-                      base::char16* character,
-                      KeyboardCode* key_code,
-                      uint32* platform_keycode) const override;
+  bool CanSetCurrentLayout() const override;
+  bool SetCurrentLayoutByName(const std::string& layout_name) override;
+  bool UsesISOLevel5Shift() const override;
+  bool UsesAltGr() const override;
+  bool Lookup(DomCode dom_code,
+              int flags,
+              DomKey* dom_key,
+              base::char16* character,
+              KeyboardCode* key_code,
+              uint32* platform_keycode) const override;
 };
 
 }  // namespace ui