read_json doesn't work on binary files with lines=True and chunksize
#### Code Sample, a copy-pastable example if possible
Using `test.jsonl` as the following:

{"test1":10}
{"test2":"hi"}

```python
with open('test.jsonl', 'rb') as f:
    df = pd.read_json(f, lines=True, chunksize=1)
    for chunk in df:
        print(chunk)
```
#### Problem description

When I try to use `read_json` on a binary file with `lines=True` and `chunksize` set, I get the following error:
`TypeError: sequence item 0: expected str instance, bytes found`

It works when I remove the chunksize parameter. I'm guessing that the chunksize isn't taking into account the fact that the file is being read as a binary file.

#### Expected Output

I expect to be able to read a file using `lines=True` and `chunksize`

#### Output of ``pd.show_versions()``

INSTALLED VERSIONS
------------------
commit           : None

pandas           : 0.25.1
numpy            : 1.15.2
pytz             : 2019.1
dateutil         : 2.8.0
pip              : 19.2.3
setuptools       : 41.4.0
Cython           : None
pytest           : 5.0.1
hypothesis       : None
sphinx           : None
blosc            : None
feather          : None
xlsxwriter       : None
lxml.etree       : None
html5lib         : None
pymysql          : None
psycopg2         : None
jinja2           : 2.10.3
IPython          : 7.8.0
pandas_datareader: None
bs4              : None
bottleneck       : None
fastparquet      : None
gcsfs            : None
lxml.etree       : None
matplotlib       : 3.0.2
numexpr          : None
odfpy            : None
openpyxl         : None
pandas_gbq       : None
pyarrow          : 0.15.0
pytables         : None
s3fs             : 0.3.5
scipy            : 1.2.0
sqlalchemy       : 1.3.9
tables           : None
xarray           : None
xlrd             : 1.2.0
xlwt             : None
xlsxwriter       : None
