Reenable origin whitelisting related layout tests.

platform/chromium/test_expectations.txt

Index: platform/chromium/test_expectations.txt
===================================================================
--- platform/chromium/test_expectations.txt	(revision 59900)
+++ platform/chromium/test_expectations.txt	(working copy)
@@ -2702,15 +2702,6 @@
 BUG41292 : fast/url/ipv4.html = TEXT TIMEOUT
 BUG41292 : fast/url/anchor.html = TEXT TIMEOUT
 
-BUG41455 SKIP : http/tests/xmlhttprequest/origin-whitelisting-all.html = TIMEOUT
-BUG41455 SKIP : http/tests/xmlhttprequest/origin-whitelisting-exact-match.html = TIMEOUT
-BUG41455 SKIP : http/tests/xmlhttprequest/origin-whitelisting-https.html = TIMEOUT
-BUG41455 SKIP : http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-with-subdomains.html = TIMEOUT
-BUG41455 SKIP : http/tests/xmlhttprequest/origin-whitelisting-ip-addresses.html = TIMEOUT
-BUG41455 SKIP : http/tests/xmlhttprequest/origin-whitelisting-subdomains.html = TIMEOUT
-BUG41455 SKIP : http/tests/xmlhttprequest/origin-whitelisting-removal.html = TIMEOUT
-BUG41455 SKIP : http/tests/security/local-image-from-remote-whitelisted.html = TIMEOUT
-
 // Caused by r57695. Will investigate.
 BUG_JIANLI LINUX : http/tests/local/formdata/send-form-data-with-sliced-file.html = TEXT