Implement DeviceLight

Source/web/FrameLoaderClientImpl.cpp

Index: Source/web/FrameLoaderClientImpl.cpp
diff --git a/Source/web/FrameLoaderClientImpl.cpp b/Source/web/FrameLoaderClientImpl.cpp
index 71b7f0ba53014df785569b2cecd3505590938d31..1c4e63e0fef941dd49c16d7a81f6231a4e7b17f7 100644
--- a/Source/web/FrameLoaderClientImpl.cpp
+++ b/Source/web/FrameLoaderClientImpl.cpp
@@ -71,6 +71,7 @@
 #include "core/frame/Settings.h"
 #include "core/page/WindowFeatures.h"
 #include "core/rendering/HitTestResult.h"
+#include "modules/device_light/DeviceLightController.h"
 #include "modules/device_orientation/DeviceMotionController.h"
 #include "modules/device_orientation/DeviceOrientationController.h"
 #include "modules/gamepad/NavigatorGamepad.h"
@@ -117,6 +118,8 @@ void FrameLoaderClientImpl::dispatchDidClearWindowObjectInWorld(DOMWrapperWorld&
         Document* document = m_webFrame->frame()->document();
         if (document) {
             WheelController::from(*document);
+            if (RuntimeEnabledFeatures::deviceLightEnabled())
+                DeviceLightController::from(*document);
             if (RuntimeEnabledFeatures::deviceMotionEnabled())
                 DeviceMotionController::from(*document);
             if (RuntimeEnabledFeatures::deviceOrientationEnabled())