ui: Remove unused ExtendedKeyEventData.

ui/events/event.cc

 // Copyright (c) 2012 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 "ui/events/event.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 
@@ skipping 1029 matching lines @@
       is_char_(true),
       key_(DomKey::FromCharacter(character)) {
 }
 
 KeyEvent::KeyEvent(const KeyEvent& rhs)
     : Event(rhs),
       key_code_(rhs.key_code_),
       code_(rhs.code_),
       is_char_(rhs.is_char_),
       key_(rhs.key_) {
-  if (rhs.extended_key_event_data_)
-    extended_key_event_data_.reset(rhs.extended_key_event_data_->Clone());
 }
 
 KeyEvent& KeyEvent::operator=(const KeyEvent& rhs) {
   if (this != &rhs) {
     Event::operator=(rhs);
     key_code_ = rhs.key_code_;
     code_ = rhs.code_;
     key_ = rhs.key_;
     is_char_ = rhs.is_char_;
-
-    if (rhs.extended_key_event_data_)
-      extended_key_event_data_.reset(rhs.extended_key_event_data_->Clone());
   }
   return *this;
 }
 
 KeyEvent::~KeyEvent() {}
 
-void KeyEvent::SetExtendedKeyEventData(
-    std::unique_ptr<ExtendedKeyEventData> data) {
-  extended_key_event_data_ = std::move(data);
-}
-
 void KeyEvent::ApplyLayout() const {
   ui::DomCode code = code_;
   if (code == DomCode::NONE) {
     // Catch old code that tries to do layout without a physical key, and try
     // to recover using the KeyboardCode. Once key events are fully defined
     // on construction (see TODO in event.h) this will go away.
     VLOG(2) << "DomCode::NONE keycode=" << key_code_;
     code = UsLayoutKeyboardCodeToDomCode(key_code_);
     if (code == DomCode::NONE) {
       key_ = DomKey::UNIDENTIFIED;
@@ skipping 199 matching lines @@
                    gfx::PointF(x, y),
                    time_stamp,
                    flags | EF_FROM_TOUCH),
       details_(details),
       unique_touch_event_id_(unique_touch_event_id) {}
 
 GestureEvent::~GestureEvent() {
 }
 
 }  // namespace ui