Jungshik Jang 2afd97698d Refine recode apis.
1. add return type, int, to toByteArray method so
that caller can know how many of bytes it consumes.

2. put final keyword

Change-Id: Ia942016fa35ecb04b49be51170739101644c3e31
2014-08-05 14:46:05 +09:00
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