New test infrastructure for producing verbose logs in failing tests.

chrome/test/base/test_switches.cc

Index: chrome/test/base/test_switches.cc
diff --git a/chrome/test/base/test_switches.cc b/chrome/test/base/test_switches.cc
index 67b4687ea033ad1f5c5021563661c94da2904f82..c5e3c99a70a745401a3bab87e940e147ec9e4601 100644
--- a/chrome/test/base/test_switches.cc
+++ b/chrome/test/base/test_switches.cc
@@ -1,9 +1,12 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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 "chrome/test/base/test_switches.h"
 
+// Also emit full event trace logs for successful tests.
+const char switches::kAlsoEmitSuccessLogs[] = "also-emit-success-logs";
+
 // Extra flags that the test should pass to launched browser process.
 const char switches::kExtraChromeFlags[] = "extra-chrome-flags";