Fix MotionEvent conversion unit test to use valid tilt angles.

content/browser/renderer_host/input/web_input_event_util_unittest.cc

 // Copyright 2014 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.
 
 // Needed on Windows to get |M_PI| from <cmath>.
 #ifdef _WIN32
 #define _USE_MATH_DEFINES
 #endif
 
 #include <cmath>
@@ skipping 22 matching lines @@
   const MotionEvent::ToolType tool_types[] = {MotionEvent::TOOL_TYPE_FINGER,
                                               MotionEvent::TOOL_TYPE_STYLUS,
                                               MotionEvent::TOOL_TYPE_MOUSE};
   ui::PointerProperties pointer(5, 10, 40);
   pointer.id = 15;
   pointer.raw_x = 20;
   pointer.raw_y = 25;
   pointer.pressure = 30;
   pointer.touch_minor = 35;
   pointer.orientation = static_cast<float>(-M_PI / 2);
-  pointer.tilt = static_cast<float>(-M_PI / 3);
+  pointer.tilt = static_cast<float>(M_PI / 3);
   for (MotionEvent::ToolType tool_type : tool_types) {
     pointer.tool_type = tool_type;
     MotionEventGeneric event(
         MotionEvent::ACTION_DOWN, base::TimeTicks::Now(), pointer);
     event.set_flags(ui::EF_SHIFT_DOWN | ui::EF_ALT_DOWN);
     event.set_unique_event_id(123456U);
 
     WebTouchEvent expected_event;
     expected_event.type = WebInputEvent::TouchStart;
     expected_event.touchesLength = 1;
     expected_event.timeStampSeconds =
         (event.GetEventTime() - base::TimeTicks()).InSecondsF();
     expected_event.modifiers = WebInputEvent::ShiftKey | WebInputEvent::AltKey;
     WebTouchPoint expected_pointer;
     expected_pointer.id = pointer.id;
     expected_pointer.state = WebTouchPoint::StatePressed;
     expected_pointer.position = blink::WebFloatPoint(pointer.x, pointer.y);
     expected_pointer.screenPosition =
         blink::WebFloatPoint(pointer.raw_x, pointer.raw_y);
     expected_pointer.radiusX = pointer.touch_major / 2.f;
     expected_pointer.radiusY = pointer.touch_minor / 2.f;
     expected_pointer.rotationAngle = 0.f;
     expected_pointer.force = pointer.pressure;
     if (tool_type == MotionEvent::TOOL_TYPE_STYLUS) {
-      expected_pointer.tiltX = -60;
+      expected_pointer.tiltX = 60;
       expected_pointer.tiltY = 0;
     } else {
       expected_pointer.tiltX = 0;
       expected_pointer.tiltY = 0;
     }
     expected_event.touches[0] = expected_pointer;
     expected_event.uniqueTouchEventId = 123456U;
 
     WebTouchEvent actual_event =
         ui::CreateWebTouchEventFromMotionEvent(event, false);
@@ skipping 46 matching lines @@
 
 TEST(WebInputEventUtilTest, NoScalingWith1DSF) {
   auto event =
       SyntheticWebMouseEventBuilder::Build(blink::WebInputEvent::MouseMove,
                                            10, 10, 0);
   EXPECT_FALSE(ConvertWebInputEventToViewport(event, 1.f));
   EXPECT_TRUE(ConvertWebInputEventToViewport(event, 2.f));
 }
 
 }  // namespace content