The readExifEntry method has raised an unnessary EOFException on reading
an non-ASCII byte array.
Bug: 27484747
Change-Id: I19371e0eed25770929f50b3ca25f249c50113925
And also the following things are included:
- Remove mInputStream.
- Update javadoc accordingly.
Bug: 11224701
Change-Id: I30b4c29ac800ae396fca8f6b2c2c0f68028a44b3