events: Remove KeyEvent::Copy().

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"
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
 #endif
 
@@ skipping 549 matching lines @@
   uint16 ch = 0;
   if (!IsControlDown())
     ch = GetCharacterFromXEvent(native_event());
   return ch ? ch : GetCharacterFromKeyCode(key_code_, flags());
 #else
   NOTIMPLEMENTED();
   return 0;
 #endif
 }
 
-KeyEvent* KeyEvent::Copy() const {
-#if defined(USE_OZONE)
-  KeyEvent* copy = new KeyEvent(*this);
-#else
-  KeyEvent* copy = HasNativeEvent() ?
-      new KeyEvent(::CopyNativeEvent(native_event()), is_char()) :
-      new KeyEvent(*this);
-#endif
-#if defined(USE_X11)
-  copy->set_delete_native_event(true);
-#endif
-  return copy;
-}
-
 bool KeyEvent::IsUnicodeKeyCode() const {
   if (!IsAltDown())
     return false;
   const int key = key_code();
   if (key >= VKEY_NUMPAD0 && key <= VKEY_NUMPAD9)
     return true;
   // Check whether the user is using the numeric keypad with num-lock off.
   // In that case, EF_EXTENDED will not be set; if it is set, the key event
   // originated from the relevant non-numpad dedicated key, e.g. [Insert].
   return (!(flags() & EF_EXTENDED) &&
@@ skipping 124 matching lines @@
 int GestureEvent::GetLowestTouchId() const {
   if (touch_ids_bitfield_ == 0)
     return -1;
   int i = -1;
   // Find the index of the least significant 1 bit
   while (!(1 << ++i & touch_ids_bitfield_));
   return i;
 }
 
 }  // namespace ui