Eraser tool type plumbing from ui/events to web events and PPAPI.

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 {
   M13 = 1.0,
   M14 = 1.1,
-  M34 = 1.2
+  M34 = 1.2,
+  M54 = 1.3

[bbudge, 2016/09/01 18:24:01]

Sorry, since M54 has already branched, this should be M55

 };
 
 /**
  * This enumeration contains the types of input events.
  */
 [assert_size(4)]
 enum PP_InputEvent_Type {
   PP_INPUTEVENT_TYPE_UNDEFINED = -1,
 
   /**
@@ skipping 168 matching lines @@
   PP_INPUTEVENT_MODIFIER_ALTKEY           = 1 << 2,
   PP_INPUTEVENT_MODIFIER_METAKEY          = 1 << 3,
   PP_INPUTEVENT_MODIFIER_ISKEYPAD         = 1 << 4,
   PP_INPUTEVENT_MODIFIER_ISAUTOREPEAT     = 1 << 5,
   PP_INPUTEVENT_MODIFIER_LEFTBUTTONDOWN   = 1 << 6,
   PP_INPUTEVENT_MODIFIER_MIDDLEBUTTONDOWN = 1 << 7,
   PP_INPUTEVENT_MODIFIER_RIGHTBUTTONDOWN  = 1 << 8,
   PP_INPUTEVENT_MODIFIER_CAPSLOCKKEY      = 1 << 9,
   PP_INPUTEVENT_MODIFIER_NUMLOCKKEY       = 1 << 10,
   PP_INPUTEVENT_MODIFIER_ISLEFT           = 1 << 11,
-  PP_INPUTEVENT_MODIFIER_ISRIGHT          = 1 << 12
+  PP_INPUTEVENT_MODIFIER_ISRIGHT          = 1 << 12,
+  [version=1.3]
+  PP_INPUTEVENT_MODIFIER_ISPEN            = 1 << 13,
+  [version=1.3]
+  PP_INPUTEVENT_MODIFIER_ISERASER         = 1 << 14
 };
 
 /**
  * This enumeration contains constants representing each mouse button. To get
  * the mouse button for a mouse down or up event, use GetMouseButton on
  * PPB_InputEvent.
  */
 [assert_size(4)]
 enum PP_InputEvent_MouseButton {
   PP_INPUTEVENT_MOUSEBUTTON_NONE   = -1,
@@ skipping 865 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);
 };