From 8c3895b7d1343989606e29cffca8a82f1f3f4ec6 Mon Sep 17 00:00:00 2001
From: nick <nick@chromium.org>
Date: Wed, 12 Aug 2015 17:04:02 -0700
Subject: [Re-land of https://codereview.chromium.org/126492300]

Introduce cross_site_iframe_factory.html, and use it to test the site isolation code in MemoryMetricsDetails under chrome/.

[ See crbug.com/515672 for a screenshot ]

/cross_site_iframe_factory.html?a(b(c, d)) gives you a simple three-level,
four-site iframe test. The trick it uses, is that the query parameter
is parsed and passed recursively to children, so the first level is:

    <iframe src="b.com:1234/cross_site_iframe_factory.html?b(c(),d())">

Which then contains the two leaf iframes:

    <iframe src="c.com:1234/cross_site_iframe_factory.html?c()">
    <iframe src="d.com:1234/cross_site_iframe_factory.html?d()">

To to cut down on noise. ".com" is automatically affixed to the hostname
if a TLD isn't present.

As a convenience, the page supports local preview if loaded via file:// URI.
file:// URIs are technically cross-origin, although --site-per-process doesn't
isolate them today.

Each site has a random (but consistent) background color as a visual aid.
The page contains some crude layout logic to make sure the outer levels
are big enough to fit the inner levels.

The parsing logic is in tree_parser_util.js, which has unittests.

MetricsMemoryDetailsBrowserTest.TestSiteIsolation is a new test
that uses the above facility to creates a bunch of complex iframe
cases, and tests that our process-counting UMA stats are as expected.

BUG=515672
CQ_INCLUDE_TRYBOTS=tryserver.chromium.mac:mac_chromium_10.6_rel_ng;tryserver.chromium.win:win_chromium_vista_rel_ng
TBR=jam@chromium.org
Review URL: https://codereview.chromium.org/1264923002

Cr-Commit-Position: refs/heads/master@{#342447}

Review URL: https://codereview.chromium.org/1288433002

Cr-Commit-Position: refs/heads/master@{#343132}
---
 chrome/chrome_tests.gypi | 1 +
 1 file changed, 1 insertion(+)

(limited to 'chrome/chrome_tests.gypi')

diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index ec0d930..39c28d6 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -400,6 +400,7 @@
       'browser/sessions/session_restore_browsertest.cc',
       'browser/sessions/session_restore_browsertest_chromeos.cc',
       'browser/sessions/tab_restore_browsertest.cc',
+      'browser/site_details_browsertest.cc',
       'browser/spellchecker/spellcheck_service_browsertest.cc',
       'browser/ssl/captive_portal_blocking_page_browsertest.cc',
       'browser/ssl/certificate_reporting_test_utils.cc',
-- 
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