Switch from TestBrowserThread to TestBrowserThreadBundle in chrome.

chrome/browser/extensions/external_policy_loader_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 <set>
 #include <string>
 
 #include "base/logging.h"
 #include "base/macros.h"
-#include "base/message_loop/message_loop.h"
 #include "base/values.h"
 #include "base/version.h"
 #include "chrome/browser/extensions/extension_management.h"
 #include "chrome/browser/extensions/external_policy_loader.h"
 #include "chrome/browser/extensions/external_provider_impl.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/sync_preferences/testing_pref_service_syncable.h"
 #include "content/public/test/test_browser_thread.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "extensions/browser/external_install_info.h"
 #include "extensions/browser/external_provider_interface.h"
 #include "extensions/browser/pref_names.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::BrowserThread;
 
 namespace extensions {
 
 class ExternalPolicyLoaderTest : public testing::Test {
  public:
-  ExternalPolicyLoaderTest() : ui_thread_(BrowserThread::UI, &loop_) {
-  }
+  ExternalPolicyLoaderTest()
+      : test_browser_thread_bundle_(
+            content::TestBrowserThreadBundle::IO_MAINLOOP) {}
 
   ~ExternalPolicyLoaderTest() override {}
 
  private:
-  // We need these to satisfy BrowserThread::CurrentlyOn(BrowserThread::UI)
-  // checks in ExternalProviderImpl.
-  base::MessageLoopForIO loop_;
-  content::TestBrowserThread ui_thread_;
+  // Needed to satisfy BrowserThread::CurrentlyOn(BrowserThread::UI) checks in
+  // ExternalProviderImpl.
+  content::TestBrowserThreadBundle test_browser_thread_bundle_;
 };
 
 class MockExternalPolicyProviderVisitor
     : public ExternalProviderInterface::VisitorInterface {
  public:
   MockExternalPolicyProviderVisitor() {
   }
 
   // Initialize a provider with |policy_forcelist|, and check that it installs
   // exactly the extensions specified in |expected_extensions|.
@@ skipping 98 matching lines @@
   forced_extensions.SetString("invalid", "http://www.example.com/crx");
   forced_extensions.SetString("dddddddddddddddddddddddddddddddd",
                               std::string());
   forced_extensions.SetString("invalid", "bad");
 
   MockExternalPolicyProviderVisitor mv;
   mv.Visit(forced_extensions, expected_extensions);
 }
 
 }  // namespace extensions