import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/.eslintrc.xpcshell.js

@@ -0,0 +1,19 @@
+// Parent config file for all devtools xpcshell files.
+module.exports = {
+  "extends": [
+    "../testing/xpcshell/xpcshell.eslintrc.js"
+  ],
+  "rules": {
+    // Allow non-camelcase so that run_test doesn't produce a warning.
+    "camelcase": 0,
+    // Allow using undefined variables so that tests can refer to functions
+    // and variables defined in head.js files, without having to maintain a
+    // list of globals in each .eslintrc file.
+    // Note that bug 1168340 will eventually help auto-registering globals
+    // from head.js files.
+    "no-undef": 0,
+    "block-scoped-var": 0,
+    // Tests can always import anything.
+    "mozilla/reject-some-requires": 0,
+  }
+};