Clean forward declaration in public

public/web/WebUserMediaRequest.h

 /*
  * Copyright (C) 2011 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 24 matching lines @@
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebPrivatePtr.h"
 #include "public/platform/WebString.h"
 
 namespace blink {
 
 class UserMediaRequest;
 class WebDocument;
 class WebMediaConstraints;
 class WebMediaStream;
-class WebMediaStreamSource;
-template <typename T> class WebVector;
 
 class WebUserMediaRequest {
 public:
     WebUserMediaRequest() { }
     WebUserMediaRequest(const WebUserMediaRequest& request) { assign(request); }
     ~WebUserMediaRequest() { reset(); }
 
     WebUserMediaRequest& operator=(const WebUserMediaRequest& other)
     {
         assign(other);
@@ skipping 32 matching lines @@
 };
 
 inline bool operator==(const WebUserMediaRequest& a, const WebUserMediaRequest& b)
 {
     return a.equals(b);
 }
 
 } // namespace blink
 
 #endif // WebUserMediaRequest_h