Add tilt_x and tilt_y to ppapi touchpoint.

ppapi/thunk/ppb_input_event_api.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.
 
 #ifndef PPAPI_THUNK_PPB_INPUT_EVENT_API_H_
 #define PPAPI_THUNK_PPB_INPUT_EVENT_API_H_
 
 #include <stdint.h>
 
 #include "ppapi/c/dev/ppb_ime_input_event_dev.h"
@@ skipping 31 matching lines @@
   virtual uint32_t GetIMESegmentOffset(uint32_t index) = 0;
   virtual int32_t GetIMETargetSegment() = 0;
   virtual void GetIMESelection(uint32_t* start, uint32_t* end) = 0;
   virtual void AddTouchPoint(PP_TouchListType list,
                              const PP_TouchPoint& point) = 0;
   virtual uint32_t GetTouchCount(PP_TouchListType list) = 0;
   virtual PP_TouchPoint GetTouchByIndex(PP_TouchListType list,
                                         uint32_t index) = 0;
   virtual PP_TouchPoint GetTouchById(PP_TouchListType list,
                                      uint32_t id) = 0;
+  virtual PP_FloatPoint GetTouchTiltByIndex(PP_TouchListType list,
+                                            uint32_t index) = 0;
+
+  virtual PP_FloatPoint GetTouchTiltById(PP_TouchListType list,
+                                         uint32_t id) = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_INPUT_EVENT_API_H_