Fix a bunch of IWYU violators that don't include scoped_ptr.h

chrome/browser/media/webrtc_rtp_dump_handler.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 CHROME_BROWSER_MEDIA_WEBRTC_RTP_DUMP_HANDLER_H_
 #define CHROME_BROWSER_MEDIA_WEBRTC_RTP_DUMP_HANDLER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/media/rtp_dump_type.h"
 
 class WebRtcRtpDumpWriter;
 
 // WebRtcRtpDumpHandler handles operations regarding the WebRTC RTP dump:
 // - Starts or stops the RTP dumping on behalf of the client.
 // - Stops the RTP dumping when the max dump file size is reached.
 // - Writes the dump file.
 // - Provides the dump file to the client code to be uploaded when
@@ skipping 101 matching lines @@
 
   // The object used to create and write the dump file.
   scoped_ptr<WebRtcRtpDumpWriter> dump_writer_;
 
   base::WeakPtrFactory<WebRtcRtpDumpHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcRtpDumpHandler);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_WEBRTC_RTP_DUMP_HANDLER_H_