update obsolete code.google.com documentation links

base/test/mock_log.cc

 // Copyright 2015 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.
 
 #include "base/test/mock_log.h"
 
 namespace base {
 namespace test {
 
 // static
@@ skipping 38 matching lines @@
   g_instance_ = nullptr;
 }
 
 // static
 bool MockLog::LogMessageHandler(int severity,
                                 const char* file,
                                 int line,
                                 size_t message_start,
                                 const std::string& str) {
   // gMock guarantees thread-safety for calling a mocked method
-  // (https://code.google.com/p/googlemock/wiki/CookBook#Using_Google_Mock_and_Threads)
+  // (https://github.com/google/googlemock/blob/master/googlemock/docs/CookBook.md#using-google-mock-and-threads)
   // but we also need to make sure that Start/StopCapturingLogs are synchronized
   // with LogMessageHandler.
   AutoLock scoped_lock(g_lock);
 
   return g_instance_->Log(severity, file, line, message_start, str);
 }
 
 }  // namespace test
 }  // namespace base