Revert of Convert more test helpers to base::RunLoop, fix page title checks.

content/test/content_browser_test_utils_internal.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/test/content_browser_test_utils_internal.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 360 matching lines @@
   return TestNavigationManager::ShouldMonitorNavigation(handle) &&
          handle->GetFrameTreeNodeId() == filtering_frame_tree_node_id_;
 }
 
 UrlCommitObserver::UrlCommitObserver(FrameTreeNode* frame_tree_node,
                                      const GURL& url)
     : content::WebContentsObserver(frame_tree_node->current_frame_host()
                                        ->delegate()
                                        ->GetAsWebContents()),
       frame_tree_node_id_(frame_tree_node->frame_tree_node_id()),
-      url_(url) {
+      url_(url),
+      message_loop_runner_(
+          new MessageLoopRunner(MessageLoopRunner::QuitMode::IMMEDIATE)) {
 }
 
 UrlCommitObserver::~UrlCommitObserver() {}
 
 void UrlCommitObserver::Wait() {
-  run_loop_.Run();
+  message_loop_runner_->Run();
 }
 
 void UrlCommitObserver::DidFinishNavigation(
     NavigationHandle* navigation_handle) {
   if (navigation_handle->HasCommitted() &&
       !navigation_handle->IsErrorPage() &&
       navigation_handle->GetURL() == url_ &&
       navigation_handle->GetFrameTreeNodeId() == frame_tree_node_id_) {
-    run_loop_.Quit();
+    message_loop_runner_->Quit();
   }
 }
 
 }  // namespace content