Add POST_WITHOUT_BODY to the UrlFetcher's method.

Add POST_WITHOUT_BODY to the UrlFetcher's method.

This CL adds a new method enum POST_WITHOUT_BODY. In most cases, POST request has non-empty body and non-content-type header. The current implementation has some (D)CHECKs for it.
However, there are some cases that we'd like to send POST request without body (or, we may say it is empty body), content-type and content length headers. The new method POST_WITHOUT_BODY is for supporting such cases.

BUG=148628
TEST=Ran unit_tests

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=180478

[hidehiko, 2013-02-01 01:59:23]

Thank you for your review in advance,
- hidehiko

[mmenke, 2013-02-01 15:22:56]

On 2013/02/01 01:59:23, hidehiko wrote:
> Thank you for your review in advance,
> - hidehiko

Set 1 LGTM, but set 2 can't be viewed on rietveld.  Please try and fix that by
reuploading before committing.

[mmenke, 2013-02-01 15:25:18]

https://codereview.chromium.org/12096093/diff/1/net/url_request/url_fetcher.h
File net/url_request/url_fetcher.h (right):

https://codereview.chromium.org/12096093/diff/1/net/url_request/url_fetcher.h...
net/url_request/url_fetcher.h:84: POST_WITHOUT_BODY,
Please add a comment that this includes no content-length header and no
content-type.

[hidehiko, 2013-02-01 16:56:59]

Thank you for your review. Could you take another look?

https://codereview.chromium.org/12096093/diff/1/net/url_request/url_fetcher.h
File net/url_request/url_fetcher.h (right):

https://codereview.chromium.org/12096093/diff/1/net/url_request/url_fetcher.h...
net/url_request/url_fetcher.h:84: POST_WITHOUT_BODY,
On 2013/02/01 15:25:19, Matt Menke wrote:
> Please add a comment that this includes no content-length header and no
> content-type.

Done.

[hidehiko, 2013-02-04 17:24:43]

Hello Matt,

Could you kindly take a quick glance at the updated comment?

best regards,
- hidehiko

[mmenke, 2013-02-04 17:27:18]

On 2013/02/04 17:24:43, hidehiko wrote:
> Hello Matt,
> 
> Could you kindly take a quick glance at the updated comment?
> 
> best regards,
> - hidehiko

Sorry, didn't realize you were waiting on me.  LGTM

[hidehiko, 2013-02-04 17:29:01]

On 2013/02/04 17:27:18, Matt Menke wrote:
> On 2013/02/04 17:24:43, hidehiko wrote:
> > Hello Matt,
> > 
> > Could you kindly take a quick glance at the updated comment?
> > 
> > best regards,
> > - hidehiko
> 
> Sorry, didn't realize you were waiting on me.  LGTM

Thank you for your quick review!
Submitting...

[commit-bot: I haz the power, 2013-02-04 17:29:26]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/hidehiko@chromium.org/12096093/22001

[commit-bot: I haz the power, 2013-02-04 19:41:45]

Change committed as 180478