Add tangentialPressure and twist properties to PointerEvent on Mac

ui/events/blink/web_input_event_unittest.cc

Index: ui/events/blink/web_input_event_unittest.cc
diff --git a/ui/events/blink/web_input_event_unittest.cc b/ui/events/blink/web_input_event_unittest.cc
index f3a4e52d71d61598db82a03d8e6999eb8efcd027..783d98168d71d637a38eb30d8de03d4f6847adad 100644
--- a/ui/events/blink/web_input_event_unittest.cc
+++ b/ui/events/blink/web_input_event_unittest.cc
@@ -438,6 +438,8 @@ TEST(WebInputEventTest, TestMakeWebMouseEvent) {
     EXPECT_EQ(0, webkit_event.tiltX);
     EXPECT_EQ(0, webkit_event.tiltY);
     EXPECT_TRUE(std::isnan(webkit_event.force));
+    EXPECT_EQ(0.0f, webkit_event.tangentialPressure);
+    EXPECT_EQ(0, webkit_event.twist);
     EXPECT_EQ(123, webkit_event.x);
     EXPECT_EQ(123, webkit_event.windowX);
     EXPECT_EQ(321, webkit_event.y);
@@ -464,6 +466,8 @@ TEST(WebInputEventTest, TestMakeWebMouseEvent) {
     EXPECT_EQ(90, webkit_event.tiltX);
     EXPECT_EQ(-90, webkit_event.tiltY);
     EXPECT_FLOAT_EQ(0.8f, webkit_event.force);
+    EXPECT_EQ(0.0f, webkit_event.tangentialPressure);
+    EXPECT_EQ(0, webkit_event.twist);
     EXPECT_EQ(123, webkit_event.x);
     EXPECT_EQ(123, webkit_event.windowX);
     EXPECT_EQ(321, webkit_event.y);
@@ -496,6 +500,8 @@ TEST(WebInputEventTest, TestMakeWebMouseWheelEvent) {
     EXPECT_EQ(0, webkit_event.tiltX);
     EXPECT_EQ(0, webkit_event.tiltY);
     EXPECT_TRUE(std::isnan(webkit_event.force));
+    EXPECT_EQ(0.0f, webkit_event.tangentialPressure);
+    EXPECT_EQ(0, webkit_event.twist);
     EXPECT_EQ(123, webkit_event.x);
     EXPECT_EQ(123, webkit_event.windowX);
     EXPECT_EQ(321, webkit_event.y);