Fixing testBrowsingPostEntryWithButton flakiness.

ios/chrome/browser/web/browsing_egtest.mm

 // Copyright 2016 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.
 
 #import <XCTest/XCTest.h>
 #include <map>
 #include <memory>
 #include <string>
 
 #include "base/ios/ios_util.h"
@@ skipping 336 matching lines @@
 
   chrome_test_util::TapWebViewElementWithId("link");
 
   chrome_test_util::AssertMainTabCount(2);
 
   // Verify the new tab was opened with the expected URL.
   [[EarlGrey selectElementWithMatcher:OmniboxText(destinationURL.GetContent())]
       assertWithMatcher:grey_notNil()];
 }
 
-// Tests that pressing the button on a POST-based form changes the page and that
-// the back button works as expected afterwards.
-- (void)testBrowsingPostEntryWithButton {
-  // Create map of canned responses and set up the test HTML server.
-  std::map<GURL, std::string> responses;
-  const GURL URL = web::test::HttpServer::MakeUrl("http://postEntryWithButton");
-  const GURL destinationURL = web::test::HttpServer::MakeUrl("http://foo");
-  // This is a page with a button that posts to the destination.
-  responses[URL] = base::StringPrintf(
-      "<form action='%s' method='post'>"
-      "<input value='button' type='submit' id='button'></form>",
-      destinationURL.spec().c_str());
-  // This is the page that should be showing at the end of the test.
-  responses[destinationURL] = "bar!";
-  web::test::SetUpSimpleHttpServer(responses);
-
-  [ChromeEarlGrey loadURL:URL];
-  chrome_test_util::TapWebViewElementWithId("button");
-
-  [[EarlGrey selectElementWithMatcher:OmniboxText(destinationURL.GetContent())]
-      assertWithMatcher:grey_notNil()];
-
-  // Go back and verify the browser navigates to the original URL.
-  [self goBack];
-  [[EarlGrey selectElementWithMatcher:OmniboxText(URL.GetContent())]
-      assertWithMatcher:grey_notNil()];
-}
-
 // Tests that a link with a JavaScript-based navigation changes the page and
 // that the back button works as expected afterwards.
 - (void)testBrowsingJavaScriptBasedNavigation {
   std::map<GURL, std::string> responses;
   const GURL URL = web::test::HttpServer::MakeUrl("http://origin");
   const GURL destURL = web::test::HttpServer::MakeUrl("http://destination");
   // Page containing a link with onclick attribute that sets window.location
   // to the destination URL.
   responses[URL] = base::StringPrintf(
       "<a href='#' onclick=\"window.location='%s';\" id='link'>Link</a>",
@@ skipping 270 matching lines @@
   [[EarlGrey selectElementWithMatcher:OmniboxText(destinationURL.GetContent())]
       assertWithMatcher:grey_notNil()];
 
   // Go back and verify that the browser navigates to the original URL.
   [self goBack];
   [[EarlGrey selectElementWithMatcher:OmniboxText(URL.GetContent())]
       assertWithMatcher:grey_notNil()];
 }
 
 @end