Remove ContextClient from NavigatorBeacon

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

Index: third_party/WebKit/Source/modules/beacon/NavigatorBeacon.h
diff --git a/third_party/WebKit/Source/modules/beacon/NavigatorBeacon.h b/third_party/WebKit/Source/modules/beacon/NavigatorBeacon.h
index 52b2f9c16dcf285206061a249ca4b9cdce334da4..eea2f920eabcba3bc4c57e24bfc9445b1461005c 100644
--- a/third_party/WebKit/Source/modules/beacon/NavigatorBeacon.h
+++ b/third_party/WebKit/Source/modules/beacon/NavigatorBeacon.h
@@ -5,7 +5,6 @@
 #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"
@@ -18,7 +17,6 @@ class KURL;
 class ArrayBufferViewOrBlobOrStringOrFormData;
 
 class NavigatorBeacon final : public GarbageCollectedFinalized<NavigatorBeacon>,
-                              public ContextClient,
                               public Supplement<Navigator> {
   USING_GARBAGE_COLLECTED_MIXIN(NavigatorBeacon);
 
@@ -39,6 +37,10 @@ class NavigatorBeacon final : public GarbageCollectedFinalized<NavigatorBeacon>,
 
   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);