Disable all the tests that are flaking more than 5% on Linux builders.

chrome/browser/extensions/extension_incognito_apitest.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 "chrome/browser/extensions/browser_action_test_util.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/extensions/user_script_master.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 170 matching lines @@
       .AppendASCII("incognito").AppendASCII("apis_disabled")));
 
   EXPECT_TRUE(listener.WaitUntilSatisfied());
   ui_test_utils::OpenURLOffTheRecord(browser()->profile(),
                                      GURL("about:blank"));
   listener.Reply("created");
 
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 }
 
-#if defined(OS_WIN) || defined(OS_MACOSX)
-// http://crbug.com/104438.
-#define MAYBE_IncognitoPopup DISABLED_IncognitoPopup
-#else
-#define MAYBE_IncognitoPopup IncognitoPopup
-#endif
 // Test that opening a popup from an incognito browser window works properly.
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, MAYBE_IncognitoPopup) {
+// http://crbug.com/180759.
+IN_PROC_BROWSER_TEST_F(ExtensionApiTest, DISABLED_IncognitoPopup) {
   host_resolver()->AddRule("*", "127.0.0.1");
   ASSERT_TRUE(StartEmbeddedTestServer());
 
   ResultCatcher catcher;
 
   ASSERT_TRUE(LoadExtensionIncognito(test_data_dir_
       .AppendASCII("incognito").AppendASCII("popup")));
 
   // Open incognito window and navigate to test page.
   Browser* incognito_browser = ui_test_utils::OpenURLOffTheRecord(
       browser()->profile(),
       embedded_test_server()->GetURL("/extensions/test_file.html"));
 
   // Simulate the incognito's browser action being clicked.
   BrowserActionTestUtil(incognito_browser).Press(0);
 
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 }