Add palm suppression feature to EventConverterEvdev

ui/events/ozone/evdev/event_converter_evdev.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 <errno.h>
 #include <linux/input.h>
 #include <stddef.h>
 
 #include "ui/events/ozone/evdev/event_converter_evdev.h"
 
@@ skipping 78 matching lines @@
 }
 
 bool EventConverterEvdev::HasTouchpad() const {
   return false;
 }
 
 bool EventConverterEvdev::HasTouchscreen() const {
   return false;
 }
 
+bool EventConverterEvdev::HasPen() const {
+  return false;
+}
+
 bool EventConverterEvdev::HasCapsLockLed() const {
   return false;
 }
 
 gfx::Size EventConverterEvdev::GetTouchscreenSize() const {
   NOTREACHED();
   return gfx::Size();
 }
 
 int EventConverterEvdev::GetTouchPoints() const {
@@ skipping 29 matching lines @@
     Stop();
   } else if (written != sizeof(events)) {
     LOG(ERROR) << "short write setting leds for " << path_.value();
     Stop();
   }
 }
 
 void EventConverterEvdev::SetTouchEventLoggingEnabled(bool enabled) {
 }
 
+void EventConverterEvdev::SetPalmSuppressionCallback(
+    const base::Callback<void(bool)>& callback) {}
+
 base::TimeTicks EventConverterEvdev::TimeTicksFromInputEvent(
     const input_event& event) {
   return ui::EventTimeStampFromSeconds(event.time.tv_sec) +
       base::TimeDelta::FromMicroseconds(event.time.tv_usec);
 }
 }  // namespace ui