Remove ContextClient from NavigatorDoNotTrack

third_party/WebKit/Source/modules/donottrack/NavigatorDoNotTrack.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef NavigatorDoNotTrack_h
 #define NavigatorDoNotTrack_h
 
-#include "core/dom/ContextLifecycleObserver.h"
 #include "core/frame/Navigator.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
-class LocalFrame;
 class Navigator;
 
 class NavigatorDoNotTrack final : public GarbageCollected<NavigatorDoNotTrack>,
-                                  public Supplement<Navigator>,
-                                  public ContextClient {
+                                  public Supplement<Navigator> {
   USING_GARBAGE_COLLECTED_MIXIN(NavigatorDoNotTrack);
 
  public:
   static NavigatorDoNotTrack& from(Navigator&);
   static String doNotTrack(Navigator&);
 
   String doNotTrack();
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
-  explicit NavigatorDoNotTrack(LocalFrame*);
+  explicit NavigatorDoNotTrack(Navigator&);
   static const char* supplementName();
 };
 
 }  // namespace blink
 
 #endif  // NavigatorDoNotTrack_h