Port ScopedDisableInternalMouseAndKeyboardX11 to Ozone

ui/events/ozone/evdev/event_device_info.cc

 // Copyright 2013 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/ozone/evdev/event_device_info.h"
 
 #include <linux/input.h>
 
 #include "base/logging.h"
 #include "base/threading/thread_restrictions.h"
@@ skipping 219 matching lines @@
 
   // Check first 31 keys: If we have all of them, consider it a full
   // keyboard. This is exactly what udev does for ID_INPUT_KEYBOARD.
   for (int key = KEY_ESC; key <= KEY_D; ++key)
     if (!HasKeyEvent(key))
       return false;
 
   return true;
 }
 
+bool EventDeviceInfo::HasTouchpad() const {
+  // TODO(pkotwicz): Investigate whether this is correct.
+  return (HasAbsXY() || HasMTAbsXY()) && !IsMappedToScreen();

[pkotwicz, 2014/12/17 04:29:45]

This function may return true for multi-touch mice. I need to find a multi-touch
mouse to test though

+}
+
 const std::vector<int32_t>& EventDeviceInfo::GetMtSlotsForCode(int code) const {
   int index = code - ABS_MT_SLOT - 1;
   DCHECK_LE(0, index) << code << " is not a valid multi-touch code";
   DCHECK_LT(index, EVDEV_ABS_MT_COUNT)
       << code << " is not a valid multi-touch code";
   return slot_values_[index];
 }
 
 }  // namespace ui