1 files changed, 20 insertions, 2 deletions
diff --git a/chromium/third_party/blink/renderer/modules/device_orientation/device_orientation_event.cc b/chromium/third_party/blink/renderer/modules/device_orientation/device_orientation_event.cc
index acdb49f7df7..85809bff6da 100644
--- a/chromium/third_party/blink/renderer/modules/device_orientation/device_orientation_event.cc
+++ b/chromium/third_party/blink/renderer/modules/device_orientation/device_orientation_event.cc
@@ -25,8 +25,8 @@
 
 #include "third_party/blink/renderer/modules/device_orientation/device_orientation_event.h"
 
+#include "third_party/blink/renderer/bindings/modules/v8/v8_device_orientation_event_init.h"
 #include "third_party/blink/renderer/modules/device_orientation/device_orientation_data.h"
-#include "third_party/blink/renderer/modules/device_orientation/device_orientation_event_init.h"
 
 namespace blink {
 
@@ -47,6 +47,24 @@ DeviceOrientationEvent::DeviceOrientationEvent(
     : Event(event_type, Bubbles::kNo, Cancelable::kNo),
       orientation_(orientation) {}
 
+base::Optional<double> DeviceOrientationEvent::alpha() const {
+  if (orientation_->CanProvideAlpha())
+    return orientation_->Alpha();
+  return base::nullopt;
+}
+
+base::Optional<double> DeviceOrientationEvent::beta() const {
+  if (orientation_->CanProvideBeta())
+    return orientation_->Beta();
+  return base::nullopt;
+}
+
+base::Optional<double> DeviceOrientationEvent::gamma() const {
+  if (orientation_->CanProvideGamma())
+    return orientation_->Gamma();
+  return base::nullopt;
+}
+
 double DeviceOrientationEvent::alpha(bool& is_null) const {
   if (orientation_->CanProvideAlpha())
     return orientation_->Alpha();
@@ -79,7 +97,7 @@ const AtomicString& DeviceOrientationEvent::InterfaceName() const {
   return event_interface_names::kDeviceOrientationEvent;
 }
 
-void DeviceOrientationEvent::Trace(blink::Visitor* visitor) {
+void DeviceOrientationEvent::Trace(Visitor* visitor) {
   visitor->Trace(orientation_);
   Event::Trace(visitor);
 }