Update source set configuration to incorporate new flavor dimension. (#2122)
Update source set configuration to incorporate new flavor dimension. (#2122)

mozilla-mobile/focus-android,mozilla-mobile/focus-android,liuche/focus-android,jonalmeida/focus-android,jonalmeida/focus-android,ekager/focus-android,jonalmeida/focus-android,jonalmeida/focus-android,mozilla-mobile/focus-android,ekager/focus-android,jonalmeida/focus-android,liuche/focus-android,mozilla-mobile/focus-android,mozilla-mobile/focus-android,mozilla-mobile/focus-android,ekager/focus-android,liuche/focus-android,liuche/focus-android,liuche/focus-android,ekager/focus-android,ekager/focus-android,jonalmeida/focus-android,liuche/focus-android,ekager/focus-android