ServiceWorker: Reset message in serviceworker-internals with update

content/browser/resources/service_worker/serviceworker_internals.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.
 
 cr.define('serviceworker', function() {
   'use strict';
 
   function initialize() {
     update();
   }
@@ skipping 58 matching lines @@
     var callback = commandCallbacks[callbackId];
     delete commandCallbacks[callbackId];
     if (callback) {
       callback(status);
     }
     update();
   }
 
   var allLogMessages = {};
   // Set log for a worker version.
-  function fillLogForVersion(partition_id, version) {
+  function fillLogForVersion(container, partition_id, version) {
     if (!version) {
       return;
     }
     if (!(partition_id in allLogMessages)) {
       allLogMessages[partition_id] = {};
     }
     var logMessages = allLogMessages[partition_id];
     if (version.version_id in logMessages) {
       version.log = logMessages[version.version_id];
     } else {
       version.log = '';
     }
+    var logAreas = container.querySelectorAll('textarea.serviceworker-log');
+    for (var i = 0; i < logAreas.length; ++i) {
+      var logArea = logAreas[i];
+      if (logArea.partition_id == partition_id &&
+          logArea.version_id == version.version_id) {
+        logArea.value = version.log;
+      }
+    }
   }
 
   // Get the unregistered workers.
   // |unregistered_registrations| will be filled with the registrations which
   // are in |live_registrations| but not in |stored_registrations|.
   // |unregistered_versions| will be filled with the versions which
   // are in |live_versions| but not in |stored_registrations| nor in
   // |live_registrations|.
   function getUnregisteredWorkers(stored_registrations,
                                   live_registrations,
@@ skipping 48 matching lines @@
     for (var i = 0; i < container.childNodes.length; ++i) {
       if (container.childNodes[i].partition_id == partition_id) {
         template = container.childNodes[i];
       }
     }
     // This is probably the first time we're loading.
     if (!template) {
       template = jstGetTemplate('serviceworker-list-template');
       container.appendChild(template);
     }
-    var fillLogFunc = fillLogForVersion.bind(this, partition_id);
+    var fillLogFunc = fillLogForVersion.bind(this, container, partition_id);
     stored_registrations.forEach(function(registration) {
       [registration.active, registration.waiting].forEach(fillLogFunc);
     });
     unregistered_registrations.forEach(function(registration) {
       [registration.active, registration.waiting].forEach(fillLogFunc);
     });
     unregistered_versions.forEach(fillLogFunc);
     jstProcess(new JsEvalContext({
                  stored_registrations: stored_registrations,
                  unregistered_registrations: unregistered_registrations,
@@ skipping 61 matching lines @@
     if (version_id in logMessages) {
       logMessages[version_id] += message;
     } else {
       logMessages[version_id] = message;
     }
 
     var logAreas = document.querySelectorAll('textarea.serviceworker-log');
     for (var i = 0; i < logAreas.length; ++i) {
       var logArea = logAreas[i];
       if (logArea.partition_id == partition_id &&
-        logArea.version_id == version_id) {
+          logArea.version_id == version_id) {
         logArea.value += message;
       }
     }
   }
 
   return {
     initialize: initialize,
     onOptions: onOptions,
     onOperationComplete: onOperationComplete,
     onPartitionData: onPartitionData,
     onWorkerStarted: onWorkerStarted,
     onWorkerStopped: onWorkerStopped,
     onErrorReported: onErrorReported,
     onConsoleMessageReported: onConsoleMessageReported,
     onVersionStateChanged: onVersionStateChanged,
     onRegistrationStored: onRegistrationStored,
     onRegistrationDeleted: onRegistrationDeleted,
   };
 });
 
 document.addEventListener('DOMContentLoaded', serviceworker.initialize);