We are doing some maintenance and re-organising where some of our styles live
See https://gerrit.wikimedia.org/r/#/c/212567/
In doing this I noticed that I can't merge this due to:
ResourcesTest::testFileExistence with data set #1102 ('/mnt/jenkins-workspace/workspace/mediawiki-extensions-hhvm/src/extensions/MobileApp/../MobileFrontend/less/reset.less', 'mobile.app.pagestyles.android', '../MobileFrontend/less/reset.less')
Please do not reference MobileFrontend styles in this way so that we can get our patchset merged without it being a breaking change...