Add palm suppression feature to EventConverterEvdev

ui/events/ozone/evdev/event_converter_evdev.h

Index: ui/events/ozone/evdev/event_converter_evdev.h
diff --git a/ui/events/ozone/evdev/event_converter_evdev.h b/ui/events/ozone/evdev/event_converter_evdev.h
index 58a4f6efa27a0208f172fb345f7463c38418f3e0..2372fd89e2f9463ec633cea1c04d2298070a1307 100644
--- a/ui/events/ozone/evdev/event_converter_evdev.h
+++ b/ui/events/ozone/evdev/event_converter_evdev.h
@@ -77,6 +77,9 @@ class EVENTS_OZONE_EVDEV_EXPORT EventConverterEvdev
   // Returns true if the converter is used for a touchscreen device.
   virtual bool HasTouchscreen() const;
 
+  // Returns true if the converter is used for a pen device.
+  virtual bool HasPen() const;
+
   // Returns true if the converter is used for a device with a caps lock LED.
   virtual bool HasCapsLockLed() const;
 
@@ -99,6 +102,10 @@ class EVENTS_OZONE_EVDEV_EXPORT EventConverterEvdev
   // Update touch event logging state.
   virtual void SetTouchEventLoggingEnabled(bool enabled);
 
+  // Sets callback to enable/disable palm suppression.
+  virtual void SetPalmSuppressionCallback(
+      const base::Callback<void(bool)>& callback);
+
   // Helper to generate a base::TimeTicks from an input_event's time
   static base::TimeTicks TimeTicksFromInputEvent(const input_event& event);