Add palm suppression feature to EventConverterEvdev

ui/events/ozone/evdev/input_device_factory_evdev.cc

Index: ui/events/ozone/evdev/input_device_factory_evdev.cc
diff --git a/ui/events/ozone/evdev/input_device_factory_evdev.cc b/ui/events/ozone/evdev/input_device_factory_evdev.cc
index 95f3867bc1d19a769da09e576096e9018d42d1e3..4ecca03e6cd25bfc554aab752eb56f7e68d252dc 100644
--- a/ui/events/ozone/evdev/input_device_factory_evdev.cc
+++ b/ui/events/ozone/evdev/input_device_factory_evdev.cc
@@ -21,6 +21,7 @@
 #include "ui/events/ozone/evdev/device_event_dispatcher_evdev.h"
 #include "ui/events/ozone/evdev/event_converter_evdev_impl.h"
 #include "ui/events/ozone/evdev/event_device_info.h"
+#include "ui/events/ozone/evdev/palm_suppression_filter.h"
 #include "ui/events/ozone/evdev/tablet_event_converter_evdev.h"
 #include "ui/events/ozone/evdev/touch_event_converter_evdev.h"
 
@@ -185,6 +186,7 @@ InputDeviceFactoryEvdev::InputDeviceFactoryEvdev(
       gesture_property_provider_(new GesturePropertyProvider),
 #endif
       dispatcher_(std::move(dispatcher)),
+      palm_filter_(new PalmSuppressionFilter(dispatcher_.get())),
       weak_ptr_factory_(this) {
 }
 
@@ -342,20 +344,34 @@ void InputDeviceFactoryEvdev::ApplyInputDeviceSettings() {
   SetBoolPropertyForOneType(DT_TOUCHPAD, "Tap Paused",
                             input_device_settings_.tap_to_click_paused);
 
+  EventConverterEvdev* internal_pen = nullptr;
+  EventConverterEvdev* internal_touch = nullptr;
   for (const auto& it : converters_) {
     EventConverterEvdev* converter = it.second;
     converter->SetEnabled(IsDeviceEnabled(converter));
-
-    if (converter->type() == InputDeviceType::INPUT_DEVICE_INTERNAL &&
-        converter->HasKeyboard()) {
-      converter->SetKeyFilter(
-          input_device_settings_.enable_internal_keyboard_filter,
-          input_device_settings_.internal_keyboard_allowed_keys);
+    converter->SetPalmSuppressionFilter(nullptr);
+
+    if (converter->type() == InputDeviceType::INPUT_DEVICE_INTERNAL) {
+      if (converter->HasKeyboard()) {
+        converter->SetKeyFilter(
+            input_device_settings_.enable_internal_keyboard_filter,
+            input_device_settings_.internal_keyboard_allowed_keys);
+      }
+      if (converter->HasPen()) {
+        internal_pen = converter;
+      } else if (converter->HasTouchscreen()) {
+        internal_touch = converter;
+      }
     }
 
     converter->SetTouchEventLoggingEnabled(
         input_device_settings_.touch_event_logging_enabled);
   }
+
+  if (internal_touch && internal_pen) {
+    internal_touch->SetPalmSuppressionFilter(palm_filter_.get());
+    internal_pen->SetPalmSuppressionFilter(palm_filter_.get());
+  }
 }
 
 void InputDeviceFactoryEvdev::ApplyCapsLockLed() {