Revert "Remove WebIDE devtools component."

This reverts commit 8c1500707f.

# Conflicts:
#	application/basilisk/components/customizableui/CustomizableUI.jsm

devtools/client/webide/content/permissionstable.js

@@ -0,0 +1,78 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var Cu = Components.utils;
+const {require} = Cu.import("resource://devtools/shared/Loader.jsm", {});
+const Services = require("Services");
+const {AppManager} = require("devtools/client/webide/modules/app-manager");
+const {Connection} = require("devtools/shared/client/connection-manager");
+
+window.addEventListener("load", function onLoad() {
+  window.removeEventListener("load", onLoad);
+  document.querySelector("#close").onclick = CloseUI;
+  AppManager.on("app-manager-update", OnAppManagerUpdate);
+  BuildUI();
+}, true);
+
+window.addEventListener("unload", function onUnload() {
+  window.removeEventListener("unload", onUnload);
+  AppManager.off("app-manager-update", OnAppManagerUpdate);
+});
+
+function CloseUI() {
+  window.parent.UI.openProject();
+}
+
+function OnAppManagerUpdate(event, what) {
+  if (what == "connection" || what == "runtime-global-actors") {
+    BuildUI();
+  }
+}
+
+function generateFields(json) {
+  let table = document.querySelector("table");
+  let permissionsTable = json.rawPermissionsTable;
+  for (let name in permissionsTable) {
+    let tr = document.createElement("tr");
+    tr.className = "line";
+    let td = document.createElement("td");
+    td.textContent = name;
+    tr.appendChild(td);
+    for (let type of ["app", "privileged", "certified"]) {
+      let td = document.createElement("td");
+      if (permissionsTable[name][type] == json.ALLOW_ACTION) {
+        td.textContent = "✓";
+        td.className = "permallow";
+      }
+      if (permissionsTable[name][type] == json.PROMPT_ACTION) {
+        td.textContent = "!";
+        td.className = "permprompt";
+      }
+      if (permissionsTable[name][type] == json.DENY_ACTION) {
+        td.textContent = "✕";
+        td.className = "permdeny";
+      }
+      tr.appendChild(td);
+    }
+    table.appendChild(tr);
+  }
+}
+
+var getRawPermissionsTablePromise; // Used by tests
+function BuildUI() {
+  let table = document.querySelector("table");
+  let lines = table.querySelectorAll(".line");
+  for (let line of lines) {
+    line.remove();
+  }
+
+  if (AppManager.connection &&
+      AppManager.connection.status == Connection.Status.CONNECTED &&
+      AppManager.deviceFront) {
+    getRawPermissionsTablePromise = AppManager.deviceFront.getRawPermissionsTable()
+                                    .then(json => generateFields(json));
+  } else {
+    CloseUI();
+  }
+}