Remove calls to deprecated MessageLoop methods in content.

content/browser/devtools/protocol/devtools_protocol_browsertest.cc

 // Copyright 2013 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 <stddef.h>
 #include <utility>
 
 #include "base/base64.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
+#include "base/run_loop.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/javascript_dialog_manager.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test.h"
 #include "content/public/test/content_browser_test_utils.h"
@@ skipping 98 matching lines @@
     if (params)
       command.Set(kParamsParam, params.release());
 
     std::string json_command;
     base::JSONWriter::Write(command, &json_command);
     agent_host_->DispatchProtocolMessage(this, json_command);
     // Some messages are dispatched synchronously.
     // Only run loop if we are not finished yet.
     if (in_dispatch_ && wait) {
       waiting_for_command_result_id_ = last_sent_id_;
-      base::MessageLoop::current()->Run();
+      base::RunLoop().Run();
     }
     in_dispatch_ = false;
   }
 
   bool HasValue(const std::string& path) {
     base::Value* value = 0;
     return result_->Get(path, &value);
   }
 
   bool HasListItem(const std::string& path_to_list,
@@ skipping 437 matching lines @@
   shell()->web_contents()->SetDelegate(&dialog_manager);
   SendCommand("Page.enable", nullptr, true);
   std::unique_ptr<base::DictionaryValue> params(new base::DictionaryValue());
   params->SetString("expression", "alert('alert')");
   SendCommand("Runtime.evaluate", std::move(params), false);
   WaitForNotification("Page.javascriptDialogOpening");
   dialog_manager.Handle();
 }
 
 }  // namespace content