Disable Flaky ExtensionBrowserTest.RSSParseFeedValidFeed1.

chrome/browser/extensions/subscribe_page_action_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 "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 130 matching lines @@
 
   ASSERT_TRUE(WaitForPageActionVisibilityChangeTo(0));
 
   // Navigate to the feed page.
   GURL feed_url = test_server()->GetURL(kFeedPageMultiRel);
   ui_test_utils::NavigateToURL(browser(), feed_url);
   // We should now have one page action ready to go in the LocationBar.
   ASSERT_TRUE(WaitForPageActionVisibilityChangeTo(1));
 }
 
-IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, RSSParseFeedValidFeed1) {
+// This test is flaky on all platforms; see http://crbug.com/340354
+IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, DISABLED_RSSParseFeedValidFeed1) {
   ASSERT_TRUE(test_server()->Start());
 
   const Extension* extension = LoadExtension(
       test_data_dir_.AppendASCII("subscribe_page_action"));
   ASSERT_TRUE(extension);
   std::string id = extension->id();
 
   NavigateToFeedAndValidate(test_server(), kValidFeed1, browser(), id, true,
                             "Feed for MyFeedTitle",
                             "Title 1",
@@ skipping 175 matching lines @@
   std::string id = extension->id();
 
   // Valid feed but containing no links.
   NavigateToFeedAndValidate(
       test_server(), kValidFeedNoLinks, browser(), id, true,
       "Feed for MyFeedTitle",
       "Title with no link",
       "Desc",
       "No error");
 }