Bug 1146603: Use messaging to set up the parent and child workers for tab.attach. r=jsantell

addon-sdk/source/lib/sdk/content/utils.js

@@ -12,6 +12,7 @@ let { data } = require('../self');
 let assetsURI = data.url();
 let isArray = Array.isArray;
 let method = require('../../method/core');
+let { uuid } = require('../util/uuid');
 
 const isAddonContent = ({ contentURL }) =>
   contentURL && data.url(contentURL).startsWith(assetsURI);
@@ -84,3 +85,21 @@ function WorkerHost (workerFor) {
   }
 }
 exports.WorkerHost = WorkerHost;
+
+function makeChildOptions(options) {
+  function makeStringArray(arrayOrValue) {
+    if (!arrayOrValue)
+      return [];
+    return [String(v) for (v of [].concat(arrayOrValue))];
+  }
+
+  return {
+    id: String(uuid()),
+    contentScript: makeStringArray(options.contentScript),
+    contentScriptFile: makeStringArray(options.contentScriptFile),
+    contentScriptOptions: options.contentScriptOptions ?
+                          JSON.stringify(options.contentScriptOptions) :
+                          null,
+  }
+}
+exports.makeChildOptions = makeChildOptions;