Add expected CTS failures.
Add expected CTS failures.

testJavascriptInterfaceForClientPopup failure is due to a bug in CTS
test server itself. So it needs an update from Android CTS.

testRequestImageRef failure is under investigation.

Add them to expected failures so that the bot can continue catching
regressions.

BUG=563493

Review URL: https://codereview.chromium.org/1552393003

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@298139 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build