Clean up how we handle themes in the extensions system and management API....

chrome/test/data/extensions/management/themes/common.js

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var common = {};
+common.step_index  = 0;
+common.fail = false;
+
+var test_steps = [];
+
+function send(msg) {
+  return function() {
+    chrome.test.sendMessage(msg);
+  };
+}
+
+var waiting = false;
+function sendAndWait(msg, expected) {
+  return function() {
+    waiting = true;
+    chrome.test.sendMessage(msg, function(response) {
+      waiting = false;
+      if (common.step_index < test_steps.length) {
+        var current = test_steps[common.step_index];
+        if (typeof(current) == "function") {
+          common.step_index++;
+          current.call();
+        }
+      }
+    });
+  };
+}
+
+function makeListener (event) {
+  return function(info) {
+    if (common.fail || waiting || common.step_index >= test_steps.length)
+      return;
+    var id = (event == "uninstall") ? info : info.id;
+    var expected = test_steps[common.step_index];
+    if (event != expected[0] || id != expected[1]) {
+      console.log("failure: expected " + JSON.stringify(expected) + ", got " +
+          event + " " + id);
+      common.fail = true;
+      return;
+    }
+    common.step_index++;
+
+    while (!waiting && common.step_index < test_steps.length) {
+      // If the next step is a function, call it.
+      var next = test_steps[common.step_index];
+      if (typeof(next) == "function") {
+        common.step_index++;
+        next.call();
+      } else {
+        break;
+      }
+    }
+  };
+}
+
+chrome.management.onInstalled.addListener(makeListener("install"));
+chrome.management.onUninstalled.addListener(makeListener("uninstall"));
+chrome.management.onEnabled.addListener(makeListener("enable"));
+chrome.management.onDisabled.addListener(makeListener("disable"));
+
+function enableTheme1() {
+  chrome.management.setEnabled("iamefpfkojoapidjnbafmgkgncegbkad", true);
+}
+
+function disableTheme1() {
+  chrome.management.setEnabled("iamefpfkojoapidjnbafmgkgncegbkad", false);
+}
+
+function enableTheme2() {
+  chrome.management.setEnabled("pjpgmfcmabopnnfonnhmdjglfpjjfkbf", true);
+}
+
+function disableTheme2() {
+  chrome.management.setEnabled("pjpgmfcmabopnnfonnhmdjglfpjjfkbf", false);
+}