blink: Cleanup class/struct forward declarations

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/frame/DOMWindowProperty.h"
 #include "core/frame/Navigator.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
-class Blob;
 class ExceptionState;
 class ExecutionContext;
 class KURL;
 class ArrayBufferViewOrBlobOrStringOrFormData;
 
 class NavigatorBeacon final : public GarbageCollectedFinalized<NavigatorBeacon>,
                               public DOMWindowProperty,
                               public Supplement<Navigator> {
   USING_GARBAGE_COLLECTED_MIXIN(NavigatorBeacon);
 
@@ skipping 17 matching lines @@
   bool canSendBeacon(ExecutionContext*, const KURL&, ExceptionState&);
   int maxAllowance() const;
   void addTransmittedBytes(int sentBytes);
 
   int m_transmittedBytes;
 };
 
 }  // namespace blink
 
 #endif  // NavigatorBeacon_h