Dump request content after RenderFrameImpl::willSendRequest

Dump request content after RenderFrameImpl::willSendRequest

In layout tests in blink, WebTestProxyBase::WillSendRequest is used to dump the
content of a request and compare it to an expected output. It should do so
after RenderFrameImpl::willSendRequest has run, since we are moving the setting
of parameters to RenderFrameImpl::willSendRequest.

BUG=376025
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=276340

[clamy, 2014-06-06 16:29:07]

@ppi: PTAL

[ppi, 2014-06-10 14:24:47]

lgtm, thanks!

[clamy, 2014-06-10 15:13:30]

@jam: PTAL

@ppi: thanks!

[jam, 2014-06-10 16:26:23]

lgtm

[clamy, 2014-06-10 16:32:47]

The CQ bit was checked by clamy@chromium.org

[commit-bot: I haz the power, 2014-06-10 16:34:02]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/clamy@chromium.org/317413002/1

[commit-bot: I haz the power, 2014-06-11 00:05:19]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_clang_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_clang_dbg/bui...)
  win_chromium_x64_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/win_chromium_x64_rel/...)

[commit-bot: I haz the power, 2014-06-11 06:05:58]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-06-11 06:05:59]

Try jobs failed on following builders:
  win_chromium_x64_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/win_chromium_x64_rel/...)

[clamy, 2014-06-11 09:07:31]

The CQ bit was checked by clamy@chromium.org

[commit-bot: I haz the power, 2014-06-11 09:10:12]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/clamy@chromium.org/317413002/1

[commit-bot: I haz the power, 2014-06-11 11:01:28]

Change committed as 276340