Support Coalesced Touch in ppapi

ppapi/c/ppb_input_event.h

 /* 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.
  */
 
-/* From ppb_input_event.idl modified Thu Sep  1 12:40:05 2016. */
+/* From ppb_input_event.idl modified Wed Apr 26 13:40:13 2017. */
 
 #ifndef PPAPI_C_PPB_INPUT_EVENT_H_
 #define PPAPI_C_PPB_INPUT_EVENT_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_point.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
@@ skipping 266 matching lines @@
    * mouse-move for touch-move (with left-button down), and mouse-up for
    * touch-end. If the plugin does register for touch events, then the synthetic
    * mouse events are not created.
    */
   PP_INPUTEVENT_CLASS_TOUCH = 1 << 3,
   /**
    * Identifies IME composition input events.
    *
    * Request this input event class if you allow on-the-spot IME input.
    */
-  PP_INPUTEVENT_CLASS_IME = 1 << 4
+  PP_INPUTEVENT_CLASS_IME = 1 << 4,
+  /**
+   * Identifies coalesced touch input events.
+   *
+   * Touch events are coalesced for each frame. By default, the coalesced touch
+   * events will be dropped. Request this input event class if you intend to
+   * handle all the touch events.
+   */
+  PP_INPUTEVENT_CLASS_COALESCED_TOUCH = 1 << 5
 } PP_InputEvent_Class;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_InputEvent_Class, 4);
 /**
  * @}
  */
 
 /**
  * @addtogroup Interfaces
  * @{
  */
@@ skipping 729 matching lines @@
   void (*GetSelection)(PP_Resource ime_event, uint32_t* start, uint32_t* end);
 };
 
 typedef struct PPB_IMEInputEvent_1_0 PPB_IMEInputEvent;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PPB_INPUT_EVENT_H_ */