PageCyclerCachedBrowserTest.PlaybackMode fails randomly on Linux debug and release

chrome/browser/page_cycler/page_cycler_browsertest.cc

 // 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 "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
@@ skipping 299 matching lines @@
 
   ASSERT_FALSE(errors[0].compare(expected_error));
 }
 
 // Test that PageCycler will visit all the urls from a cache directory
 // successfully while in playback mode.
 #if defined(OS_CHROMEOS)
 // TODO(rdevlin.cronin): Perhaps page cycler isn't completely implemented on
 // ChromeOS?
 #else
-#if (defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)) && \
-    !defined(NDEBUG)
+#if defined(OS_LINUX)
+// Bug 159026: Randomly fails on Linux release and debug.
+#define MAYBE_PlaybackMode DISABLED_PlaybackMode
+#else
+#if (defined(OS_WIN) || defined(OS_MACOSX)) && !defined(NDEBUG)
 // Bug 131333: This test fails on a XP debug bot since Build 17609.
-// Bug 159026: Also fails on Linux debug bot.
 #define MAYBE_PlaybackMode DISABLED_PlaybackMode
 #else
 #define MAYBE_PlaybackMode PlaybackMode
 #endif
 IN_PROC_BROWSER_TEST_F(PageCyclerCachedBrowserTest, MAYBE_PlaybackMode) {
   ScopedTempDir temp;
   ASSERT_TRUE(temp.CreateUniqueTempDir());
 
   RegisterForNotifications();
   InitFilePaths(temp.path());
@@ skipping 46 matching lines @@
   ASSERT_EQ(1u, errors.size());
 
   std::string expected_error;
   expected_error.append("Failed to load the page at: ")
       .append(kCacheMissURL)
       .append(": The requested entry was not found in the cache.");
 
   ASSERT_FALSE(errors[0].compare(expected_error));
 }
 #endif