Remove ContextClient from NavigatorBeacon

third_party/WebKit/Source/modules/beacon/NavigatorBeacon.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NavigatorBeacon_h
 #define NavigatorBeacon_h
 
-#include "core/dom/ContextLifecycleObserver.h"
 #include "core/frame/Navigator.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class ExceptionState;
 class ExecutionContext;
 class KURL;
 class ArrayBufferViewOrBlobOrStringOrFormData;
 
 class NavigatorBeacon final : public GarbageCollectedFinalized<NavigatorBeacon>,
-                              public ContextClient,
                               public Supplement<Navigator> {
   USING_GARBAGE_COLLECTED_MIXIN(NavigatorBeacon);
 
  public:
   static NavigatorBeacon& from(Navigator&);
   virtual ~NavigatorBeacon();
 
   static bool sendBeacon(ExecutionContext*,
                          Navigator&,
                          const String&,
                          const ArrayBufferViewOrBlobOrStringOrFormData&,
                          ExceptionState&);
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   explicit NavigatorBeacon(Navigator&);
 
   static const char* supplementName();
 
+  bool sendBeaconImpl(ExecutionContext*,
+                      const String&,
+                      const ArrayBufferViewOrBlobOrStringOrFormData&,
+                      ExceptionState&);
   bool canSendBeacon(ExecutionContext*, const KURL&, ExceptionState&);
   int maxAllowance() const;
   void addTransmittedBytes(int sentBytes);
 
   int m_transmittedBytes;
 };
 
 }  // namespace blink
 
 #endif  // NavigatorBeacon_h