OverscrollScreenshot is marked as FLAKY.

content/browser/web_contents/web_contents_view_aura_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 "content/browser/web_contents/web_contents_view_aura.h"
 
 #include "base/command_line.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/test_timeouts.h"
@@ skipping 490 matching lines @@
 }
 
 // Tests that the page has has a screenshot when navigation happens:
 //  - from within the page (from a JS function)
 //  - interactively, when user does an overscroll gesture
 //  - interactively, when user navigates in history without the overscroll
 //    gesture.
 // Flaky on Windows (http://crbug.com/357311). Might be related to
 // OverscrollNavigation test.
 // Flaky on Ozone (http://crbug.com/399676).
-#if defined(OS_WIN) || defined(USE_OZONE)
+// Flaky on ChromeOS (http://crbug.com/405945).
+#if defined(OS_WIN) || defined(USE_OZONE) || defined(OS_CHROMEOS)
 #define MAYBE_OverscrollScreenshot DISABLED_OverscrollScreenshot
 #else
 #define MAYBE_OverscrollScreenshot OverscrollScreenshot
 #endif
 IN_PROC_BROWSER_TEST_F(WebContentsViewAuraTest, MAYBE_OverscrollScreenshot) {
   // Disable the test for WinXP.  See http://crbug/294116.
 #if defined(OS_WIN)
   if (base::win::GetVersion() < base::win::VERSION_VISTA) {
     LOG(WARNING) << "Test disabled due to unknown bug on WinXP.";
     return;
@@ skipping 437 matching lines @@
     WaitAFrame();
 
     if (!navigated)
       EXPECT_EQ(10, ExecuteScriptAndExtractInt("touchmoveCount"));
     else
       EXPECT_GT(10, ExecuteScriptAndExtractInt("touchmoveCount"));
   }
 }
 
 }  // namespace content