Sync ui/events to chromium @ https://crrev.com/336230

ui/gfx/screen_aura.cc -> ui/gfx/screen_stub.cc

Carrying forward previous rename of:

 gesture_provider_aura -> gesture_provider_impl
 motion_event_aura -> motion_event_impl

Does not include the following files that remain unused
even after upcoming ozone integration.

 platform/x11/x11_event_source_glib.cc
 keycodes/keyboard_code_conversion_mac.h
 keycodes/keyboard_code_conversion_mac.mm
 keycodes/keyboard_code_conversion_win.cc
 keycodes/keyboard_code_conversion_win.h
 cocoa/cocoa_event_utils.h
 cocoa/cocoa_event_utils.mm
 cocoa/events_mac.mm
 win/events_win.cc
 linux/text_edit_command_auralinux.cc
 linux/text_edit_command_auralinux.h
 linux/text_edit_key_bindings_delegate_auralinux.cc
 linux/text_edit_key_bindings_delegate_auralinux.h
 test/cocoa_test_event_utils.h
 test/cocoa_test_event_utils.mm
 gestures/blink/web_gesture_curve_impl_unittest.cc
 android/scroller*
 ozone/evdev/libgestures_glue*
 ozone/layout/xkb/
 ozone/chromeos/*
 ui/gfx/screen_ios.mm

BUG=
R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/1287103004 .
diff --git a/ui/events/ozone/evdev/input_device_settings_evdev.h b/ui/events/ozone/evdev/input_device_settings_evdev.h
new file mode 100644
index 0000000..0014ba1
--- /dev/null
+++ b/ui/events/ozone/evdev/input_device_settings_evdev.h
@@ -0,0 +1,40 @@
+// Copyright 2015 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.
+
+#ifndef UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_SETTINGS_EVDEV_H_
+#define UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_SETTINGS_EVDEV_H_
+
+#include <vector>
+
+namespace ui {
+
+enum class DomCode;
+
+struct InputDeviceSettingsEvdev {
+  InputDeviceSettingsEvdev();
+  InputDeviceSettingsEvdev(const InputDeviceSettingsEvdev& other);
+  ~InputDeviceSettingsEvdev();
+
+  static const int kDefaultSensitivity = 3;
+
+  // The initial settings are not critical since they will be shortly be changed
+  // to the user's preferences or the application's own defaults.
+  bool tap_to_click_enabled = true;
+  bool three_finger_click_enabled = false;
+  bool tap_dragging_enabled = false;
+  bool natural_scroll_enabled = false;
+  bool tap_to_click_paused = false;
+
+  int touchpad_sensitivity = kDefaultSensitivity;
+  int mouse_sensitivity = kDefaultSensitivity;
+
+  bool enable_devices = true;  // If false, all input is disabled.
+  bool enable_internal_touchpad = true;
+  bool enable_internal_keyboard_filter = false;
+  std::vector<DomCode> internal_keyboard_allowed_keys;
+};
+
+}  // namespace ui
+
+#endif  // UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_SETTINGS_EVDEV_H_