Update post state on navigation within page.

Update post state on navigation within page.

pushState/replaceState should always report as a GET, even if they happen in a
document that was the result of a POST.

Currently, POST->replaceState->reload sends a GET (as the spec
requires), but we incorrectly show a form resubmission warning.

BUG=239907
TEST=NavigationControllerTest.PostThenReplaceStateThenReload

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=274069

[Nate Chapin, 2014-05-29 22:05:26]

On 2014/05/29 19:21:41, Nate Chapin wrote:

FYI, the new test is failing on the trybots because LKGR hasn't picked up the
blink side of this bugfix.

[nasko, 2014-05-29 23:11:25]

What is the blink change you mentioned?

The chromium side LGTM.

[Nate Chapin, 2014-05-29 23:12:01]

On 2014/05/29 23:11:25, nasko wrote:
> What is the blink change you mentioned?
> 
> The chromium side LGTM.

http://src.chromium.org/viewvc/blink?view=revision&revision=175011

[Nate Chapin, 2014-05-30 16:56:46]

The CQ bit was checked by japhet@chromium.org

[commit-bot: I haz the power, 2014-05-30 16:59:53]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/japhet@chromium.org/306033002/20001

[Nate Chapin, 2014-05-30 22:33:19]

The CQ bit was checked by japhet@chromium.org

[commit-bot: I haz the power, 2014-05-30 22:39:11]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/japhet@chromium.org/306033002/40001

[commit-bot: I haz the power, 2014-05-31 03:40:18]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)
  mac_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/mac_chromium_rel/buil...)

[commit-bot: I haz the power, 2014-05-31 22:25:16]

Change committed as 274069