Cancel downloads earlier when prerendering.

Cancel downloads earlier when prerendering.
Downloads while prerendering should no longer
create history items, and this should fix the
flake in the prerendering download tests.

BUG=81798, 81985
TEST=PrerenderBrowserTest.PrerenderDownloadLocation and several others.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=86134

[mmenke, 2011-05-20 17:37:44]

Sorry for sending all my reviews your way, but with Chris out for the week, you
seem to be the only wicked-fast person who reliably responds.

The temporary download directory stuff is no longer needed because we now cancel
before the download is created.

[dominich, 2011-05-20 17:42:35]

LGTM

http://codereview.chromium.org/7004039/diff/1/chrome/browser/prerender/preren...
File chrome/browser/prerender/prerender_browsertest.cc (right):

http://codereview.chromium.org/7004039/diff/1/chrome/browser/prerender/preren...
chrome/browser/prerender/prerender_browsertest.cc:244: // TODO(mmenke):  Once
downloading is stopped earlier, remove this.
still need this?

[mmenke, 2011-05-20 17:45:12]

Thanks for the review.

http://codereview.chromium.org/7004039/diff/1/chrome/browser/prerender/preren...
File chrome/browser/prerender/prerender_browsertest.cc (right):

http://codereview.chromium.org/7004039/diff/1/chrome/browser/prerender/preren...
chrome/browser/prerender/prerender_browsertest.cc:244: // TODO(mmenke):  Once
downloading is stopped earlier, remove this.
On 2011/05/20 17:42:35, dominic wrote:
> still need this?

No.  Thanks.

[commit-bot: I haz the power, 2011-05-20 20:04:59]

Change committed as 86134