Remove one navigation layout test

content/browser/frame_host/navigation_controller_impl_browsertest.cc

 // Copyright 2014 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/frame_host/navigation_controller_impl.h"
 
 #include <stdint.h>
 #include <algorithm>
 #include <utility>
 #include <vector>
@@ skipping 6719 matching lines @@
   // Do a browser-initiated fragment navigation.
   NavigationHandleCommitObserver handle_observer(shell()->web_contents(),
                                                  kFragmentURL);
   EXPECT_TRUE(NavigateToURL(shell(), kFragmentURL));
 
   EXPECT_TRUE(handle_observer.has_committed());
   EXPECT_TRUE(handle_observer.was_same_page());
   EXPECT_FALSE(handle_observer.was_renderer_initiated());
 }
 
+// Tests that a 204 response to a browser-initiated navigation does not result
+// in a new NavigationEntry being committed.
+IN_PROC_BROWSER_TEST_F(NavigationControllerBrowserTest,
+                       204Navigation) {
+  const GURL kURL = embedded_test_server()->GetURL("/title1.html");
+  const GURL kURL204 = embedded_test_server()->GetURL("/page204.html");
+
+  // Navigate to the initial page.
+  EXPECT_TRUE(NavigateToURL(shell(), kURL));
+
+  const NavigationControllerImpl& controller =
+      static_cast<const NavigationControllerImpl&>(
+          shell()->web_contents()->GetController());
+
+  NavigationEntryImpl* entry = controller.GetLastCommittedEntry();
+  EXPECT_EQ(kURL, entry->GetURL());
+  EXPECT_EQ(1, controller.GetEntryCount());
+
+  // Do a 204 navigation.
+  EXPECT_FALSE(NavigateToURL(shell(), kURL204));
+
+  entry = controller.GetLastCommittedEntry();
+  EXPECT_EQ(kURL, entry->GetURL());
+  EXPECT_EQ(1, controller.GetEntryCount());
+}
+
 }  // namespace content