ppapi: Add ResourceCreationAPI::CreateTouchInputEvent for creating touch-events.

ppapi/shared_impl/ppb_input_event_shared.h

Index: ppapi/shared_impl/ppb_input_event_shared.h
diff --git a/ppapi/shared_impl/ppb_input_event_shared.h b/ppapi/shared_impl/ppb_input_event_shared.h
index 2518e9e3913e125928f3273d20c8406a187f78f0..f6bdea6b2c8bf9a4476daa065a6abccdeb4b0ba5 100644
--- a/ppapi/shared_impl/ppb_input_event_shared.h
+++ b/ppapi/shared_impl/ppb_input_event_shared.h
@@ -131,6 +131,11 @@ class PPAPI_SHARED_EXPORT PPB_InputEvent_Shared
                                            const PP_FloatPoint* wheel_delta,
                                            const PP_FloatPoint* wheel_ticks,
                                            PP_Bool scroll_by_page);
+  static PP_Resource CreateTouchInputEvent(ResourceObjectType type,
+                                           PP_Instance instance,
+                                           PP_InputEvent_Type event_type,
+                                           PP_TimeTicks time_stamp,
+                                           uint32_t modifiers);
 
  private:
   InputEventData data_;