Generalize the net module's LoadLog facility from a passive container, to an event stream (NetLog).

net/base/net_log_util.h

 // Copyright (c) 2009 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.
 
-#ifndef NET_BASE_LOAD_LOG_UTIL_H_
-#define NET_BASE_LOAD_LOG_UTIL_H_
+#ifndef NET_BASE_NET_LOG_UTIL_H_
+#define NET_BASE_NET_LOG_UTIL_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
-#include "net/base/load_log.h"
+#include "net/base/net_log.h"
 
 namespace net {
 
-// The LoadLogUtil utility class contains methods to analyze and visualize
-// LoadLogs.
+// The NetLogUtil utility class contains methods to analyze and visualize
+// NetLog entries.
 
-class LoadLogUtil {
+class NetLogUtil {
  public:
   struct EventDuration {
-    LoadLog::EventType event;
+    NetLog::EventType event;
     base::TimeDelta duration;
   };
   typedef std::vector<EventDuration> EventDurationList;
 
   // Builds a pretty printed ASCII tree showing the chronological order
   // of events.
   //
   // The indentation reflects hiearchy, with the duration of each indented
   // block noted on the right. The timestamp (tick count in milliseconds)
   // is noted in the left column.
@@ skipping 23 matching lines @@
   //   - EventY took place right before Event1 finished, at t=8
   //
   // In general the rules are:
   //   - Log entries added by BeginEvent() are prefixed with a '+' and
   //     start an indentation block.
   //   - Log entries added by EndEvent() are prefixed with a '-' and
   //     finish an indentation block.
   //   - Log entries added by AddEvent() have no prefix.
   //   - Time units are given as milliseconds.
   //
-  static std::string PrettyPrintAsEventTree(const LoadLog* log);
+  static std::string PrettyPrintAsEventTree(
+      const std::vector<NetLog::Entry>& entries, size_t num_entries_truncated);
 
  private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(LoadLogUtil);
+  DISALLOW_IMPLICIT_CONSTRUCTORS(NetLogUtil);
 };
 
 }  // namespace net
 
-#endif  // NET_BASE_LOAD_LOG_UTIL_H_
+#endif  // NET_BASE_NET_LOG_UTIL_H_