Pass through tilt_x and tilt_y to blink

ui/events/blink/blink_event_util.cc

 // Copyright 2015 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.
 
 // MSVC++ requires this to be set before any other includes to get M_PI.
 #define _USE_MATH_DEFINES
 
 #include "ui/events/blink/blink_event_util.h"
 
 #include <stddef.h>
@@ skipping 127 matching lines @@
     return WebPointerProperties::Button::kNoButton;
 }
 
 WebTouchPoint CreateWebTouchPoint(const MotionEvent& event,
                                   size_t pointer_index) {
   WebTouchPoint touch;
 
   SetWebPointerPropertiesFromMotionEventData(
       touch, event.GetPointerId(pointer_index),
       event.GetPressure(pointer_index), event.GetOrientation(pointer_index),
-      event.GetTilt(pointer_index), 0 /* no button changed */,
-      event.GetToolType(pointer_index));
+      event.GetTiltX(pointer_index), event.GetTiltY(pointer_index),
+      0 /* no button changed */, event.GetToolType(pointer_index));
 
   touch.state = ToWebTouchPointState(event, pointer_index);
   touch.position.x = event.GetX(pointer_index);
   touch.position.y = event.GetY(pointer_index);
   touch.screen_position.x = event.GetRawX(pointer_index);
   touch.screen_position.y = event.GetRawY(pointer_index);
 
   // A note on touch ellipse specifications:
   //
   // Android MotionEvent provides the major and minor axes of the touch ellipse,
@@ skipping 730 matching lines @@
   }
   NOTREACHED() << "Invalid MotionEvent::Action = " << action;
   return WebInputEvent::kUndefined;
 }
 
 void SetWebPointerPropertiesFromMotionEventData(
     WebPointerProperties& webPointerProperties,
     int pointer_id,
     float pressure,
     float orientation_rad,
-    float tilt_rad,
+    float tilt_x,
+    float tilt_y,
     int android_buttons_changed,
     int tool_type) {
-
   webPointerProperties.id = pointer_id;
   webPointerProperties.force = pressure;
 
   if (tool_type == MotionEvent::TOOL_TYPE_STYLUS) {
     // A stylus points to a direction specified by orientation and tilts to
     // the opposite direction. Coordinate system is left-handed.
-    float r = sin(tilt_rad);
-    float z = cos(tilt_rad);
-    webPointerProperties.tilt_x =
-        lround(atan2(sin(-orientation_rad) * r, z) * 180.f / M_PI);
-    webPointerProperties.tilt_y =
-        lround(atan2(cos(-orientation_rad) * r, z) * 180.f / M_PI);
+    webPointerProperties.tilt_x = tilt_x;
+    webPointerProperties.tilt_y = tilt_y;
   } else {
     webPointerProperties.tilt_x = webPointerProperties.tilt_y = 0;
   }
 
   webPointerProperties.button = ToWebPointerButton(android_buttons_changed);
   webPointerProperties.pointer_type = ToWebPointerType(tool_type);
 }
 
 int WebEventModifiersToEventFlags(int modifiers) {
   int flags = 0;
@@ skipping 62 matching lines @@
   switch (type) {
     case blink::WebGestureEvent::kGestureScrollUpdate:
     case blink::WebGestureEvent::kGesturePinchUpdate:
       return true;
     default:
       return false;
   }
 }
 
 }  // namespace ui