Remove remaining calls to deprecated MessageLoop methods on Mac.

chrome/browser/extensions/api/web_request/web_request_api_unittest.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 <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <queue>
 #include <tuple>
 
 #include "base/bind.h"
+#include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_string_value_serializer.h"
-#include "base/location.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/run_loop.h"
-#include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_split.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "chrome/browser/content_settings/cookie_settings_factory.h"
 #include "chrome/browser/extensions/event_router_forwarder.h"
 #include "chrome/browser/net/chrome_network_delegate.h"
@@ skipping 423 matching lines @@
   // processed because request is canceled before the handler responds.
   response = new ExtensionWebRequestEventRouter::EventResponse(
       extension_id, base::Time::FromDoubleT(1));
   GURL redirect_url("about:redirected");
   response->new_url = redirect_url;
   ipc_sender_.PushTask(
       base::Bind(&EventHandledOnIOThread,
           &profile_, extension_id, kEventName, kEventName + "/1",
           request->identifier(), response));
 
+  base::RunLoop run_loop;
+
   // Extension response for OnErrorOccurred: Terminate the message loop.
   ipc_sender_.PushTask(
-      base::Bind(&base::MessageLoop::PostTask,
-                 base::Unretained(base::MessageLoop::current()), FROM_HERE,
-                 base::MessageLoop::QuitWhenIdleClosure()));
+      base::Bind(base::IgnoreResult(&base::SingleThreadTaskRunner::PostTask),
+                 base::ThreadTaskRunnerHandle::Get(), FROM_HERE,
+                 run_loop.QuitWhenIdleClosure()));
 
   request->Start();
   // request->Start() will have submitted OnBeforeRequest by the time we cancel.
   request->Cancel();
-  base::RunLoop().Run();
+  run_loop.Run();
 
   EXPECT_TRUE(!request->is_pending());
   EXPECT_EQ(net::URLRequestStatus::CANCELED, request->status().status());
   EXPECT_EQ(net::ERR_ABORTED, request->status().error());
   EXPECT_EQ(request_url, request->url());
   EXPECT_EQ(1U, request->url_chain().size());
   EXPECT_EQ(0U, ipc_sender_.GetNumTasks());
 
   ExtensionWebRequestEventRouter::GetInstance()->RemoveEventListener(
       &profile_, extension_id, kEventName + "/1", 0, 0);
@@ skipping 1859 matching lines @@
   EXPECT_TRUE(credentials_set);
   EXPECT_FALSE(auth3.Empty());
   EXPECT_EQ(username, auth1.username());
   EXPECT_EQ(password, auth1.password());
   EXPECT_EQ(1u, warning_set.size());
   EXPECT_TRUE(HasWarning(warning_set, "extid2"));
   EXPECT_EQ(3u, capturing_net_log.GetSize());
 }
 
 }  // namespace extensions