Fix ThreadTaskRunnerHandle check in BrowserContext.

content/browser/browser_context.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/public/browser/browser_context.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <algorithm>
 #include <limits>
@@ skipping 394 matching lines @@
   user_service::AssociateShellUserIdWithUserDir(new_id, path);
   RemoveBrowserContextFromUserIdMap(browser_context);
   g_user_id_to_context.Get()[new_id] = browser_context;
   browser_context->SetUserData(kMojoShellUserId,
                                new ShellUserIdHolder(new_id));
 
   browser_context->SetUserData(kMojoWasInitialized,
                                new base::SupportsUserData::Data);
 
   MojoShellConnection* shell = MojoShellConnection::GetForProcess();
-  if (shell && base::ThreadTaskRunnerHandle::Get()) {
+  if (shell && base::ThreadTaskRunnerHandle::IsSet()) {
     // NOTE: Many unit tests create a TestBrowserContext without initializing
     // Mojo or the global Mojo shell connection.
 
     shell::mojom::ShellClientPtr shell_client;
     shell::mojom::ShellClientRequest shell_client_request =
         mojo::GetProxy(&shell_client);
 
     shell::mojom::PIDReceiverPtr pid_receiver;
     shell::Connector::ConnectParams params(
         shell::Identity(kBrowserMojoApplicationName, new_id));
@@ skipping 58 matching lines @@
       << "Attempting to destroy a BrowserContext that never called "
       << "Initialize()";
 
   RemoveBrowserContextFromUserIdMap(this);
 
   if (GetUserData(kDownloadManagerKeyName))
     GetDownloadManager(this)->Shutdown();
 }
 
 }  // namespace content