Revert of Unit test for sync online wallpaper

chrome/test/data/chromeos/wallpaper_manager/unit_tests/api_mock.js

-// Copyright 2014 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 TestConstants = {
-  wallpaperURL: 'https://test.com/test.jpg',
-  // A dummy string which is used to mock an image.
-  image: '*#*@#&'
-};
-
-// Mock a few chrome apis.
-var chrome = {
-  storage: {
-    local: {
-      get: function(key, callback) {
-        var items = {};
-        switch (key) {
-          case Constants.AccessLocalWallpaperInfoKey:
-            items[Constants.AccessLocalWallpaperInfoKey] = {
-              'url': 'dummy',
-              'layout': 'dummy',
-              'source': 'dummy'
-            };
-        }
-        callback(items);
-      },
-      set: function(items, callback) {
-      }
-    },
-    sync: {
-      get: function(key, callback) {
-      },
-      set: function(items, callback) {
-      }
-    },
-    onChanged: {
-      addListener: function(listener) {
-        this.dispatch = listener;
-      }
-    }
-  },
-  app: {
-    runtime: {
-      onLaunched: {
-        addListener: function(listener) {
-        }
-      }
-    }
-  },
-  alarms: {
-    onAlarm: {
-      addListener: function(listener) {
-      }
-    }
-  }
-};
-
-(function (exports) {
-  var originalXMLHttpRequest = window.XMLHttpRequest;
-
-  // Mock XMLHttpRequest. It dispatches a 'load' event immediately with status
-  // equals to 200 in function |send|.
-  function MockXMLHttpRequest() {
-  }
-
-  MockXMLHttpRequest.prototype = {
-    responseType: null,
-    url: null,
-
-    send: function(data) {
-      this.status = 200;
-      this.dispatchEvent('load');
-    },
-
-    addEventListener: function(type, listener) {
-      this.eventListeners = this.eventListeners || {};
-      this.eventListeners[type] = this.eventListeners[type] || [];
-      this.eventListeners[type].push(listener);
-    },
-
-    removeEventListener: function (type, listener) {
-      var listeners = this.eventListeners && this.eventListeners[type] || [];
-
-      for (var i = 0; i < listeners.length; ++i) {
-        if (listeners[i] == listener) {
-          return listeners.splice(i, 1);
-        }
-      }
-    },
-
-    dispatchEvent: function(type) {
-      var listeners = this.eventListeners && this.eventListeners[type] || [];
-
-      if (/test.jpg$/g.test(this.url)) {
-        this.response = TestConstants.image;
-      } else {
-        this.response = '';
-      }
-
-      for (var i = 0; i < listeners.length; ++i)
-        listeners[i].call(this, new Event(type));
-    },
-
-    open: function(method, url, async) {
-      this.url = url;
-    }
-  };
-
-  function installMockXMLHttpRequest() {
-    window['XMLHttpRequest'] = MockXMLHttpRequest;
-  };
-
-  function uninstallMockXMLHttpRequest() {
-    window['XMLHttpRequest'] = originalXMLHttpRequest;
-  };
-
-  exports.installMockXMLHttpRequest = installMockXMLHttpRequest;
-  exports.uninstallMockXMLHttpRequest = uninstallMockXMLHttpRequest;
-
-})(window);