Make --site-per-process override --process-per-tab in RFHM::ShouldTransitionCrossSite

Make --site-per-process override --process-per-tab in RFHM::ShouldTransitionCrossSite.

This is necessary so that layout tests can run with --site-per-process.  Layout tests run with --dump-render-tree, which also forces --process-per-tab, and the latter was conflicting with --site-per-process.

BUG=417518
Committed: https://crrev.com/3180ced2f2cfd98fee64a48bef2dc460fa229243
Cr-Commit-Position: refs/heads/master@{#314985}

[alexmos, 2015-02-05 17:48:50]

alexmos@chromium.org changed reviewers:
+ creis@chromium.org

[alexmos, 2015-02-05 17:51:45]

Charlie, could you please take a look?

[Charlie Reis, 2015-02-05 17:57:53]

LGTM

https://codereview.chromium.org/891063002/diff/20001/content/browser/frame_ho...
File content/browser/frame_host/render_frame_host_manager.cc (right):

https://codereview.chromium.org/891063002/diff/20001/content/browser/frame_ho...
content/browser/frame_host/render_frame_host_manager.cc:851: // True for
--site-per-process, which overrides both kSingleProcess and
nit: Let's move this block above the first comment, so that it's the first thing
in the function.

[alexmos, 2015-02-05 17:59:53]

New patchsets have been uploaded after l-g-t-m from creis@chromium.org

[alexmos, 2015-02-05 18:01:11]

Thanks!

https://codereview.chromium.org/891063002/diff/20001/content/browser/frame_ho...
File content/browser/frame_host/render_frame_host_manager.cc (right):

https://codereview.chromium.org/891063002/diff/20001/content/browser/frame_ho...
content/browser/frame_host/render_frame_host_manager.cc:851: // True for
--site-per-process, which overrides both kSingleProcess and
On 2015/02/05 17:57:53, Charlie Reis wrote:
> nit: Let's move this block above the first comment, so that it's the first
thing
> in the function.

Done.

[alexmos, 2015-02-06 05:17:04]

The CQ bit was checked by alexmos@chromium.org

[commit-bot: I haz the power, 2015-02-06 05:17:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/891063002/40001

[commit-bot: I haz the power, 2015-02-06 06:12:33]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-02-06 06:13:38]

Patchset 3 (id:??) landed as
https://crrev.com/3180ced2f2cfd98fee64a48bef2dc460fa229243
Cr-Commit-Position: refs/heads/master@{#314985}