Add tilt_x and tilt_y to ppapi touchpoint.

ppapi/api/ppb_input_event.idl

 /* Copyright (c) 2012 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.
  */
 
 /**
  * This file defines the Input Event interfaces.
  */
 
 label Chrome {
@@ skipping 944 matching lines @@
    *
    * @param[in] list The list.
    *
    * @param[in] touch_id The id of the touch-point.
    *
    * @return A <code>PP_TouchPoint</code> representing the touch-point.
    */
   PP_TouchPoint GetTouchById([in] PP_Resource resource,
                              [in] PP_TouchListType list,
                              [in] uint32_t touch_id);
+
+  /**
+   * Returns the touch-tilt with the specified index in the specified list.
+   *
+   * @param[in] resource A <code>PP_Resource</code> corresponding to a touch
+   * event.
+   *
+   * @param[in] list The list.
+   *
+   * @param[in] touch_id The id of the touch-point.

[bbudge, 2017/05/23 18:28:46]

this should be 'index'

[jkwang, 2017/05/23 22:07:57]

Done.

+   *
+   * @return A <code>PP_FloatPoint</code> representing the tilt of the
+   * touch-point.
+   */
+  [version=1.1]
+  PP_FloatPoint GetTouchTiltByIndex([in] PP_Resource resource,
+                                    [in] PP_TouchListType list,
+                                    [in] uint32_t index);
+
+  /**
+   * Returns the touch-tilt with the specified touch-id in the specified list.
+   *
+   * @param[in] resource A <code>PP_Resource</code> corresponding to a touch
+   * event.
+   *
+   * @param[in] list The list.
+   *
+   * @param[in] touch_id The id of the touch-point.
+   *
+   * @return A <code>PP_FloatPoint</code> representing the tilt of the
+   * touch-point.
+   */
+  [version=1.1]
+  PP_FloatPoint GetTouchTiltById([in] PP_Resource resource,
+                                 [in] PP_TouchListType list,
+                                 [in] uint32_t touch_id);
 };
 
 [macro="PPB_IME_INPUT_EVENT_INTERFACE"]
 interface PPB_IMEInputEvent {
   /**
    * Create() creates an IME input event with the given parameters. Normally
    * you will get an IME event passed through the <code>HandleInputEvent</code>
    * and will not need to create them, but some applications may want to create
    * their own for internal use.
    *
@@ skipping 110 matching lines @@
    * event.
    *
    * @param[out] start The start position of the current selection.
    *
    * @param[out] end The end position of the current selection.
    */
   void GetSelection([in] PP_Resource ime_event,
                     [out] uint32_t start,
                     [out] uint32_t end);
 };