Revert r95841 due to failing media_unittests on linux_shared bot.

media/base/h264_bitstream_converter.h

Index: media/base/h264_bitstream_converter.h
===================================================================
--- media/base/h264_bitstream_converter.h	(revision 95843)
+++ media/base/h264_bitstream_converter.h	(working copy)
@@ -6,14 +6,13 @@
 #define MEDIA_BASE_H264_BITSTREAM_CONVERTER_H_
 
 #include "base/basictypes.h"
-#include "media/base/media_export.h"
 
 namespace media {
 
 // H264BitstreamConverter is a class to convert H.264 bitstream from
 // MP4 format (as specified in ISO/IEC 14496-15) into H.264 bytestream
 // (as specified in ISO/IEC 14496-10 Annex B).
-class MEDIA_EXPORT H264BitstreamConverter {
+class H264BitstreamConverter {
  public:
   H264BitstreamConverter();
   ~H264BitstreamConverter();