aura: Fix copying a touch-event in X11.

ui/aura/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/aura/event.h"
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
 #endif
 
@@ skipping 295 matching lines @@
 }
 
 base::TimeDelta TouchEvent::GetTimestamp() const {
   return time_stamp();
 }
 
 TouchEvent* TouchEvent::Copy() const {
 #if defined(OS_WIN)
   if (native_event().message)
     return new TouchEvent(::CopyNativeEvent(native_event()));
-#else
-  if (native_event())
-    return new TouchEvent(::CopyNativeEvent(native_event()));
 #endif
   return new TouchEvent(*this, NULL, NULL);
 }
 
 KeyEvent::KeyEvent(const base::NativeEvent& native_event, bool is_char)
     : Event(native_event,
             ui::EventTypeFromNative(native_event),
             ui::EventFlagsFromNative(native_event)),
       key_code_(ui::KeyboardCodeFromNative(native_event)),
       is_char_(is_char),
@@ skipping 137 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 aura