Convert TestNavigationObserver to use the new navigation callbacks.

content/browser/site_per_process_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 "content/browser/site_per_process_browsertest.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 2257 matching lines @@
   GURL main_url(embedded_test_server()->GetURL(
       "a.com", "/cross_site_iframe_factory.html?a(a)"));
   EXPECT_TRUE(NavigateToURL(shell(), main_url));
 
   // It is safe to obtain the root frame tree node here, as it doesn't change.
   FrameTreeNode* root = web_contents()->GetFrameTree()->root();
   FrameTreeNode* child = root->child_at(0);
   GURL url_a = child->current_url();
 
   // Disable host resolution in the test server and try to navigate the subframe
-  // cross-site, which will lead to a committed net error (which looks like
-  // success to the TestNavigationObserver).
+  // cross-site, which will lead to a committed net error.
   GURL url_b = embedded_test_server()->GetURL("b.com", "/title3.html");
   host_resolver()->ClearRules();
   TestNavigationObserver observer(shell()->web_contents());
   NavigateIframeToURL(shell()->web_contents(), "child-0", url_b);
-  EXPECT_TRUE(observer.last_navigation_succeeded());
+  EXPECT_FALSE(observer.last_navigation_succeeded());
   EXPECT_EQ(url_b, observer.last_navigation_url());
   EXPECT_EQ(2, shell()->web_contents()->GetController().GetEntryCount());
 
   // PlzNavigate: Ensure that we have created a new process for the subframe.
   if (IsBrowserSideNavigationEnabled()) {
     EXPECT_EQ(
         " Site A ------------ proxies for B\n"
         "   +--Site B ------- proxies for A\n"
         "Where A = http://a.com/\n"
         "      B = http://b.com/",
@@ skipping 6871 matching lines @@
       shell(), embedded_test_server()->GetURL("b.com", "/title3.html")));
 
   // Pretend that a.com just requested a context menu. This used to cause a
   // because the RenderWidgetHostView is destroyed when the frame is swapped and
   // added to pending delete list.
   rfh->OnMessageReceived(
       FrameHostMsg_ContextMenu(rfh->GetRoutingID(), ContextMenuParams()));
 }
 
 }  // namespace content