old_contents: /**
   * Copyright 2013-2014 Facebook, Inc.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  var ChatAppDispatcher = require('../dispatcher/ChatAppDispatcher');
  var ChatConstants = require('../constants/ChatConstants');
  var EventEmitter = require('events').EventEmitter;
  var MessageStore = require('../stores/messagestore');
  var ThreadStore = require('../stores/ThreadStore');
  var merge = require('react/lib/merge');
  
  var ActionTypes = ChatConstants.ActionTypes;
  var CHANGE_EVENT = 'change';
  
  var UnreadThreadStore = merge(EventEmitter.prototype, {
  
    emitChange: function() {
      this.emit(CHANGE_EVENT);
    },
  
    /**
     * @param {function} callback
     */
    addChangeListener: function(callback) {
      this.on(CHANGE_EVENT, callback);
    },
  
    /**
     * @param {function} callback
     */
    removeChangeListener: function(callback) {
      this.removeListener(CHANGE_EVENT, callback);
    },
  
    getCount: function() {
      var threads = ThreadStore.getAll();
      var unreadCount = 0;
      for (var id in threads) {
        if (!threads[id].lastMessage.isRead) {
          unreadCount++;
        }
      }
      return unreadCount;
    }
  
  });
  
  UnreadThreadStore.dispatchToken = ChatAppDispatcher.register(function(payload) {
    ChatAppDispatcher.waitFor([
      ThreadStore.dispatchToken,
      MessageStore.dispatchToken
    ]);
  
    var action = payload.action;
    switch (action.type) {
  
      case ActionTypes.CLICK_THREAD:
        UnreadThreadStore.emitChange();
        break;
  
      case ActionTypes.RECEIVE_RAW_MESSAGES:
        UnreadThreadStore.emitChange();
        break;
  
      default:
        // do nothing
    }
  });
  
  module.exports = UnreadThreadStore;
  
new_contents: /**
   * Copyright 2013-2014 Facebook, Inc.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  var ChatAppDispatcher = require('../dispatcher/ChatAppDispatcher');
  var ChatConstants = require('../constants/ChatConstants');
  var EventEmitter = require('events').EventEmitter;
  var MessageStore = require('../stores/MessageStore');
  var ThreadStore = require('../stores/ThreadStore');
  var merge = require('react/lib/merge');
  
  var ActionTypes = ChatConstants.ActionTypes;
  var CHANGE_EVENT = 'change';
  
  var UnreadThreadStore = merge(EventEmitter.prototype, {
  
    emitChange: function() {
      this.emit(CHANGE_EVENT);
    },
  
    /**
     * @param {function} callback
     */
    addChangeListener: function(callback) {
      this.on(CHANGE_EVENT, callback);
    },
  
    /**
     * @param {function} callback
     */
    removeChangeListener: function(callback) {
      this.removeListener(CHANGE_EVENT, callback);
    },
  
    getCount: function() {
      var threads = ThreadStore.getAll();
      var unreadCount = 0;
      for (var id in threads) {
        if (!threads[id].lastMessage.isRead) {
          unreadCount++;
        }
      }
      return unreadCount;
    }
  
  });
  
  UnreadThreadStore.dispatchToken = ChatAppDispatcher.register(function(payload) {
    ChatAppDispatcher.waitFor([
      ThreadStore.dispatchToken,
      MessageStore.dispatchToken
    ]);
  
    var action = payload.action;
    switch (action.type) {
  
      case ActionTypes.CLICK_THREAD:
        UnreadThreadStore.emitChange();
        break;
  
      case ActionTypes.RECEIVE_RAW_MESSAGES:
        UnreadThreadStore.emitChange();
        break;
  
      default:
        // do nothing
    }
  });
  
  module.exports = UnreadThreadStore;
  
subject: Fix filename case