ImageRequest.doParse() now adds NetworkResponse to all ParseError created

This will help the caller to debug which image couldn't be parsed by
peeking at the NetworkResponse. doParse() already returns the
NetworkResponse of bitmaps successfully parsed, adding it to failed bitmaps
should not take too much overhead.
Merge "ImageRequest.doParse() now adds NetworkResponse to all ParseError created"
Support no-content (204) requests in BasicNetwork.

When we get an empty response for say, a 204, we create a 0 byte
response and pass it on to the NetworkResponse.  Implementers
of Request can then return appropriate Responses.  The behavior
before this change results in an NPE because we attempt to
getContentLength() bytes from a null entity..

Change-Id: Ia5f92ffd99b8f3e88cc92dc50ba43c4721d83e79
Signed-off-by: Ray Colline <rayc@google.com>
Merge "Support no-content (204) requests in BasicNetwork."
make all 2xx be a valid success codes

Change-Id: I94313e2f89c38277d36b7a2aaa525862d2740c98
Merge "make all 2xx be a valid success codes"
Merge remote-tracking branch 'upstream/master'