Make source_dependencies in about:net-internals clickable.

chrome/browser/resources/net_internals/source_entry.js

Index: chrome/browser/resources/net_internals/source_entry.js
===================================================================
--- chrome/browser/resources/net_internals/source_entry.js	(revision 112998)
+++ chrome/browser/resources/net_internals/source_entry.js	(working copy)
@@ -217,8 +217,12 @@
       return endTime - startTime;
     },
 
-    printAsText: function() {
-      return PrintSourceEntriesAsText(this.entries_);
+    /**
+     * Prints descriptive text about |entries_| to a new node added to the end
+     * of |parent|.
+     */
+    printAsText: function(parent) {
+      return printLogEntriesAsText(this.entries_, parent);
     }
   };