Issue 3443 - Use process script instead of a frame script in Element Hiding Helper

chrome/content/frameScript.js

-/*
- * This Source Code is subject to the terms of the Mozilla Public License
- * version 2.0 (the "License"). You can obtain a copy of the License at
- * http://mozilla.org/MPL/2.0/.
- */
-
-(function()
-{
-  const Cu = Components.utils;
-
-  let rand = Components.stack.filename.replace(/.*\?/, "");
-  let module = "chrome://elemhidehelper/content/actor.jsm?" + rand;
-  let {shutdown, getNodeInfo, togglePreview, forgetNode} = Cu.import(module, {});
-
-  addMessageListener("ElemHideHelper:Shutdown", onShutdown);
-  addMessageListener("ElemHideHelper:GetNodeInfo", onGetNodeInfo);
-  addMessageListener("ElemHideHelper:Preview", onTogglePreview);
-
-  function onShutdown()
-  {
-    shutdown();
-    try {
-      Cu.unload(module);
-    } catch (e) {
-      Cu.reportError(e);
-    }
-
-    removeMessageListener("ElemHideHelper:Shutdown", onShutdown);
-    removeMessageListener("ElemHideHelper:GetNodeInfo", onGetNodeInfo);
-    removeMessageListener("ElemHideHelper:Preview", onTogglePreview);
-  }
-
-  function onGetNodeInfo(message)
-  {
-    let nodeInfo = getNodeInfo(message.objects.element);
-    nodeInfo.messageId = message.data;
-    sendAsyncMessage("ElemHideHelper:GetNodeInfo:Response", nodeInfo);
-  }
-
-  function onTogglePreview(message)
-  {
-    togglePreview(message.data.nodeID, message.data.stylesheetData);
-    if (message.data.forgetNode)
-      forgetNode(message.data.nodeID);
-  }
-})();