ozone: Fix chromium-style method override warnings

ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/keycodes/dom3/dom_code.h"
 #include "ui/events/keycodes/dom3/dom_key.h"
 #include "ui/events/ozone/layout/keyboard_layout_engine_manager.h"
 #include "ui/events/ozone/layout/layout_util.h"
 #include "ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.h"
 
 namespace ui {
 
 namespace {
 
 // This XkbKeyCodeConverter simply uses the numeric value of the DomCode.
 class VkTestXkbKeyCodeConverter : public XkbKeyCodeConverter {
  public:
   VkTestXkbKeyCodeConverter() {
     invalid_xkb_keycode_ = static_cast<xkb_keycode_t>(DomCode::NONE);
   }
-  virtual ~VkTestXkbKeyCodeConverter(){}
-  virtual xkb_keycode_t DomCodeToXkbKeyCode(DomCode dom_code) const override {
+  ~VkTestXkbKeyCodeConverter() override {}
+  xkb_keycode_t DomCodeToXkbKeyCode(DomCode dom_code) const override {
     return static_cast<xkb_keycode_t>(dom_code);
   }
 };
 
 // This mock XkbKeyboardLayoutEngine fakes a layout that succeeds only when the
 // supplied keycode matches its |Entry|, in which case it supplies DomKey::NONE
 // and a character that depends on the flags.
 class VkTestXkbKeyboardLayoutEngine : public XkbKeyboardLayoutEngine {
  public:
   struct Entry {
@@ skipping 16 matching lines @@
     // For testing, use the same modifier values as ui::EventFlags.
     static const int kTestFlags[] = {
         EF_SHIFT_DOWN, EF_ALTGR_DOWN, EF_MOD3_DOWN};
     xkb_flag_map_.clear();
     xkb_flag_map_.resize(arraysize(kTestFlags));
     for (size_t i = 0; i < arraysize(kTestFlags); ++i) {
       XkbFlagMapEntry e = {kTestFlags[i], kTestFlags[i]};
       xkb_flag_map_.push_back(e);
     }
   }
-  virtual ~VkTestXkbKeyboardLayoutEngine() {}
+  ~VkTestXkbKeyboardLayoutEngine() override {}
 
   void SetEntry(const Entry* entry) { entry_ = entry; }
 
   xkb_keysym_t CharacterToKeySym(base::char16 c) const {
     return 0x01000000u + c;
   }
 
   KeyboardCode GetKeyboardCode(DomCode dom_code,
                                int flags,
                                base::char16 character) const {
     KeyboardCode key_code = DifficultKeyboardCode(
         dom_code, flags, key_code_converter_.DomCodeToXkbKeyCode(dom_code),
         flags, CharacterToKeySym(character), DomKey::CHARACTER, character);
     if (key_code == VKEY_UNKNOWN)
       key_code = DomCodeToNonLocatedKeyboardCode(dom_code);
     return key_code;
   }
 
   // XkbKeyboardLayoutEngine overrides:
-  virtual bool XkbLookup(xkb_keycode_t xkb_keycode,
+  bool XkbLookup(xkb_keycode_t xkb_keycode,
                          xkb_mod_mask_t xkb_flags,
                          xkb_keysym_t* xkb_keysym,
                          base::char16* character) const override {
     if (!entry_ ||
         (xkb_keycode != static_cast<xkb_keycode_t>(entry_->dom_code)))
       return false;
     if (xkb_flags & EF_ALTGR_DOWN)
       *character = entry_->altgr_character;
     else if (xkb_flags & EF_SHIFT_DOWN)
       *character = entry_->shift_character;
     else
       *character = entry_->plain_character;
     *xkb_keysym = CharacterToKeySym(*character);
     return *character != 0;
   }
 
  private:
   const Entry* entry_;
 };
 
 }  // anonymous namespace
 
 class XkbLayoutEngineVkTest : public testing::Test {
  public:
   XkbLayoutEngineVkTest() {}
-  virtual ~XkbLayoutEngineVkTest() {}
+  ~XkbLayoutEngineVkTest() override {}
 
   void SetUp() override {
     KeyboardLayoutEngineManager::SetKeyboardLayoutEngine(
         make_scoped_ptr(new VkTestXkbKeyboardLayoutEngine(keycode_converter_)));
     layout_engine_ = static_cast<VkTestXkbKeyboardLayoutEngine*>(
         KeyboardLayoutEngineManager::GetKeyboardLayoutEngine());
   }
   void TearDown() override {}
 
  protected:
@@ skipping 692 matching lines @@
     std::string layout_id;
     std::string layout_variant;
     XkbKeyboardLayoutEngine::ParseLayoutName(e->layout_name, &layout_id,
                                              &layout_variant);
     EXPECT_EQ(layout_id, e->layout);
     EXPECT_EQ(layout_variant, e->variant);
   }
 }
 
 }  // namespace ui