Replace the remaining DOMWindowProperty with ContextClient

third_party/WebKit/Source/modules/screen_orientation/ScreenOrientation.h

Index: third_party/WebKit/Source/modules/screen_orientation/ScreenOrientation.h
diff --git a/third_party/WebKit/Source/modules/screen_orientation/ScreenOrientation.h b/third_party/WebKit/Source/modules/screen_orientation/ScreenOrientation.h
index 9d24694d64917ef5aa3c0caf1d24830490f48b18..5a80789b59d02203b6b2d75ee360743b1b1e0990 100644
--- a/third_party/WebKit/Source/modules/screen_orientation/ScreenOrientation.h
+++ b/third_party/WebKit/Source/modules/screen_orientation/ScreenOrientation.h
@@ -6,8 +6,8 @@
 #define ScreenOrientation_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "core/dom/ContextLifecycleObserver.h"
 #include "core/events/EventTarget.h"
-#include "core/frame/DOMWindowProperty.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/modules/screen_orientation/WebScreenOrientationType.h"
 #include "wtf/text/AtomicString.h"
@@ -22,7 +22,7 @@ class ScriptState;
 class ScreenOrientationControllerImpl;
 
 class ScreenOrientation final : public EventTargetWithInlineData,
-                                public DOMWindowProperty {
+                                public ContextClient {
   DEFINE_WRAPPERTYPEINFO();
   USING_GARBAGE_COLLECTED_MIXIN(ScreenOrientation);