Add NetLog support to UDP sockets.

chrome/browser/resources/net_internals/source_entry.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.
 
 /**
  * A SourceEntry gathers all log entries with the same source.
  *
  * @constructor
  */
 function SourceEntry(logEntry, maxPreviousSourceId) {
@@ skipping 77 matching lines @@
       break;
     case LogSourceType.DISK_CACHE_ENTRY:
     case LogSourceType.MEMORY_CACHE_ENTRY:
       this.description_ = e.params.key;
       break;
     case LogSourceType.SPDY_SESSION:
       if (e.params.host)
         this.description_ = e.params.host + ' (' + e.params.proxy + ')';
       break;
     case LogSourceType.SOCKET:
+      // Use description of parent source, if any.
       if (e.params.source_dependency != undefined) {
-        var connectJobId = e.params.source_dependency.id;
-        var connectJob = g_browser.sourceTracker.getSourceEntry(connectJobId);
-        if (connectJob)
-          this.description_ = connectJob.getDescription();
+        var parentId = e.params.source_dependency.id;
+        this.description_ = g_browser.sourceTracker.getDescription(parentId);
+      }
+      break;
+    case LogSourceType.UDP_SOCKET:
+      if (e.params.address != undefined) {
+        this.description_ = e.params.address;
+        // If the parent of |this| is a DNS_TRANSACTION, use
+        // '<DNS Server IP> [<DNS we're resolving>]'.
+        if (this.entries_[0].type == LogEventType.SOCKET_ALIVE &&
+            this.entries_[0].params.source_dependency != undefined) {
+          var parentId = this.entries_[0].params.source_dependency.id;
+          var parent = g_browser.sourceTracker.getSourceEntry(parentId);
+          if (parent &&
+              parent.getSourceType() == LogSourceType.DNS_TRANSACTION &&
+              parent.getDescription().length > 0) {
+            this.description_ += ' [' + parent.getDescription() + ']';
+          }
+        }
       }
       break;
     case LogSourceType.ASYNC_HOST_RESOLVER_REQUEST:
     case LogSourceType.DNS_TRANSACTION:
       this.description_ = e.params.hostname;
       break;
   }
 
   if (this.description_ == undefined)
     this.description_ = '';
@@ skipping 12 matching lines @@
  * Returns the starting entry for this source. Conceptually this is the
  * first entry that was logged to this source. However, we skip over the
  * TYPE_REQUEST_ALIVE entries which wrap TYPE_URL_REQUEST_START_JOB /
  * TYPE_SOCKET_STREAM_CONNECT.
  */
 SourceEntry.prototype.getStartEntry_ = function() {
   if (this.entries_.length < 1)
     return undefined;
   if (this.entries_.length >= 2) {
     if (this.entries_[0].type == LogEventType.REQUEST_ALIVE ||
-        this.entries_[0].type == LogEventType.SOCKET_POOL_CONNECT_JOB)
+        this.entries_[0].type == LogEventType.SOCKET_POOL_CONNECT_JOB ||
+        this.entries_[1].type == LogEventType.UDP_CONNECT) {
       return this.entries_[1];
+    }
   }
   return this.entries_[0];
 };
 
 SourceEntry.prototype.getLogEntries = function() {
   return this.entries_;
 };
 
 SourceEntry.prototype.getSourceTypeString = function() {
   return getKeyWithValue(LogSourceType, this.entries_[0].source.type);
@@ skipping 43 matching lines @@
 SourceEntry.prototype.getDuration = function() {
   var startTicks = this.entries_[0].time;
   var startTime = timeutil.convertTimeTicksToDate(startTicks).getTime();
   var endTime = this.getEndTime();
   return endTime - startTime;
 };
 
 SourceEntry.prototype.printAsText = function() {
   return PrintSourceEntriesAsText(this.entries_);
 };