Remove prerender cookie store, part 3.

Remove prerender cookie store, part 3.

This removes the plumbing in //content to pass a custom cookie store to a
request. This reverts (a small portion of)
https://codereview.chromium.org/188693003

BUG=457344
Committed: https://crrev.com/f71cc7bb28640f725daadfc9b3dc5b6ca92b68d3
Cr-Commit-Position: refs/heads/master@{#321624}

[davidben, 2015-03-14 00:26:50]

davidben@chromium.org changed reviewers:
+ mmenke@chromium.org

[davidben, 2015-03-14 00:26:50]

I'm giving you small easy CLs in preparation for the big scary one. ;-)

(The next one is to remove the CookieStore argument from CreateRequest. It's
 101 files changed, 452 insertions(+), 574 deletions(-) )

[mmenke, 2015-03-20 13:39:51]

On 2015/03/14 00:26:50, David Benjamin wrote:
> I'm giving you small easy CLs in preparation for the big scary one. ;-)
> 
> (The next one is to remove the CookieStore argument from CreateRequest. It's
>  101 files changed, 452 insertions(+), 574 deletions(-) )

LGTM

[davidben, 2015-03-20 17:34:04]

On 2015/03/20 13:39:51, mmenke wrote:
> On 2015/03/14 00:26:50, David Benjamin wrote:
> > I'm giving you small easy CLs in preparation for the big scary one. ;-)
> > 
> > (The next one is to remove the CookieStore argument from CreateRequest. It's
> >  101 files changed, 452 insertions(+), 574 deletions(-) )
> 
> LGTM

Updated to also remove the hook from ContentBrowserClient; put that in the wrong
CL.

[davidben, 2015-03-20 18:15:03]

The CQ bit was checked by davidben@chromium.org

[davidben, 2015-03-20 18:15:03]

The patchset sent to the CQ was uploaded after l-g-t-m from mmenke@chromium.org
Link to the patchset: https://codereview.chromium.org/1002363002/#ps20001
(title: "also remove hook from ContentBrowserClient")

[commit-bot: I haz the power, 2015-03-20 18:15:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1002363002/20001

[commit-bot: I haz the power, 2015-03-20 20:35:11]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-20 20:35:56]

Patchset 2 (id:??) landed as
https://crrev.com/f71cc7bb28640f725daadfc9b3dc5b6ca92b68d3
Cr-Commit-Position: refs/heads/master@{#321624}