Revert "Remove WebIDE devtools component."

This reverts commit 8c1500707f.

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

devtools/client/webide/content/addons.js

@@ -0,0 +1,135 @@
+/* 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 {gDevTools} = require("devtools/client/framework/devtools");
+const {GetAvailableAddons, ForgetAddonsList} = require("devtools/client/webide/modules/addons");
+const Strings = Services.strings.createBundle("chrome://devtools/locale/webide.properties");
+
+window.addEventListener("load", function onLoad() {
+  window.removeEventListener("load", onLoad);
+  document.querySelector("#aboutaddons").onclick = function () {
+    let browserWin = Services.wm.getMostRecentWindow(gDevTools.chromeWindowType);
+    if (browserWin && browserWin.BrowserOpenAddonsMgr) {
+      browserWin.BrowserOpenAddonsMgr("addons://list/extension");
+    }
+  };
+  document.querySelector("#close").onclick = CloseUI;
+  GetAvailableAddons().then(BuildUI, (e) => {
+    console.error(e);
+    window.alert(Strings.formatStringFromName("error_cantFetchAddonsJSON", [e], 1));
+  });
+}, true);
+
+window.addEventListener("unload", function onUnload() {
+  window.removeEventListener("unload", onUnload);
+  ForgetAddonsList();
+}, true);
+
+function CloseUI() {
+  window.parent.UI.openProject();
+}
+
+function BuildUI(addons) {
+  BuildItem(addons.adb, "adb");
+  BuildItem(addons.adapters, "adapters");
+  for (let addon of addons.simulators) {
+    BuildItem(addon, "simulator");
+  }
+}
+
+function BuildItem(addon, type) {
+
+  function onAddonUpdate(event, arg) {
+    switch (event) {
+      case "update":
+        progress.removeAttribute("value");
+        li.setAttribute("status", addon.status);
+        status.textContent = Strings.GetStringFromName("addons_status_" + addon.status);
+        break;
+      case "failure":
+        window.parent.UI.reportError("error_operationFail", arg);
+        break;
+      case "progress":
+        if (arg == -1) {
+          progress.removeAttribute("value");
+        } else {
+          progress.value = arg;
+        }
+        break;
+    }
+  }
+
+  let events = ["update", "failure", "progress"];
+  for (let e of events) {
+    addon.on(e, onAddonUpdate);
+  }
+  window.addEventListener("unload", function onUnload() {
+    window.removeEventListener("unload", onUnload);
+    for (let e of events) {
+      addon.off(e, onAddonUpdate);
+    }
+  });
+
+  let li = document.createElement("li");
+  li.setAttribute("status", addon.status);
+
+  let name = document.createElement("span");
+  name.className = "name";
+
+  switch (type) {
+    case "adb":
+      li.setAttribute("addon", type);
+      name.textContent = Strings.GetStringFromName("addons_adb_label");
+      break;
+    case "adapters":
+      li.setAttribute("addon", type);
+      try {
+        name.textContent = Strings.GetStringFromName("addons_adapters_label");
+      } catch (e) {
+        // This code (bug 1081093) will be backported to Aurora, which doesn't
+        // contain this string.
+        name.textContent = "Tools Adapters Add-on";
+      }
+      break;
+    case "simulator":
+      li.setAttribute("addon", "simulator-" + addon.version);
+      let stability = Strings.GetStringFromName("addons_" + addon.stability);
+      name.textContent = Strings.formatStringFromName("addons_simulator_label", [addon.version, stability], 2);
+      break;
+  }
+
+  li.appendChild(name);
+
+  let status = document.createElement("span");
+  status.className = "status";
+  status.textContent = Strings.GetStringFromName("addons_status_" + addon.status);
+  li.appendChild(status);
+
+  let installButton = document.createElement("button");
+  installButton.className = "install-button";
+  installButton.onclick = () => addon.install();
+  installButton.textContent = Strings.GetStringFromName("addons_install_button");
+  li.appendChild(installButton);
+
+  let uninstallButton = document.createElement("button");
+  uninstallButton.className = "uninstall-button";
+  uninstallButton.onclick = () => addon.uninstall();
+  uninstallButton.textContent = Strings.GetStringFromName("addons_uninstall_button");
+  li.appendChild(uninstallButton);
+
+  let progress = document.createElement("progress");
+  li.appendChild(progress);
+
+  if (type == "adb") {
+    let warning = document.createElement("p");
+    warning.textContent = Strings.GetStringFromName("addons_adb_warning");
+    warning.className = "warning";
+    li.appendChild(warning);
+  }
+
+  document.querySelector("ul").appendChild(li);
+}