Mark following tests as flaky due to an assertion failure:

chrome/browser/collected_cookies_uitest.cc

 // Copyright (c) 2010 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 <string>
 
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/browser/net/url_fixer_upper.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/automation/tab_proxy.h"
 #include "chrome/test/automation/browser_proxy.h"
 #include "chrome/test/ui/ui_test.h"
 #include "net/test/test_server.h"
 
 namespace {
 
 const FilePath::CharType kDocRoot[] = FILE_PATH_LITERAL("chrome/test/data");
 
 }  // namespace
 
 typedef UITest CollectedCookiesTest;
 
-TEST_F(CollectedCookiesTest, DoubleDisplay) {
+// Flaky, http://crbug.com/62311.
+TEST_F(CollectedCookiesTest, FLAKY_DoubleDisplay) {
   net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath(kDocRoot));
   ASSERT_TRUE(test_server.Start());
 
   scoped_refptr<BrowserProxy> browser(automation()->GetBrowserWindow(0));
   ASSERT_TRUE(browser.get());
 
   scoped_refptr<TabProxy> tab(browser->GetTab(0));
   ASSERT_TRUE(tab.get());
 
   // Disable cookies.
   ASSERT_TRUE(browser->SetDefaultContentSetting(CONTENT_SETTINGS_TYPE_COOKIES,
                                                 CONTENT_SETTING_BLOCK));
 
   // Load a page with cookies.
   ASSERT_TRUE(tab->NavigateToURL(test_server.GetURL("files/cookie1.html")));
 
   // Click on the info link twice.
   ASSERT_TRUE(tab->ShowCollectedCookiesDialog());
   ASSERT_TRUE(tab->ShowCollectedCookiesDialog());
 }
 
-TEST_F(CollectedCookiesTest, NavigateAway) {
+// Flaky, http://crbug.com/62311.
+TEST_F(CollectedCookiesTest, FLAKY_NavigateAway) {
   net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath(kDocRoot));
   ASSERT_TRUE(test_server.Start());
 
   scoped_refptr<BrowserProxy> browser(automation()->GetBrowserWindow(0));
   ASSERT_TRUE(browser.get());
 
   scoped_refptr<TabProxy> tab(browser->GetTab(0));
   ASSERT_TRUE(tab.get());
 
   // Disable cookies.
   ASSERT_TRUE(browser->SetDefaultContentSetting(CONTENT_SETTINGS_TYPE_COOKIES,
                                                 CONTENT_SETTING_BLOCK));
 
   // Load a page with cookies.
   ASSERT_TRUE(tab->NavigateToURL(test_server.GetURL("files/cookie1.html")));
 
   // Click on the info link.
   ASSERT_TRUE(tab->ShowCollectedCookiesDialog());
 
   // Navigate to another page.
   ASSERT_TRUE(tab->NavigateToURL(test_server.GetURL("files/cookie2.html")));
 }