Switch from TestBrowserThread to TestBrowserThreadBundle in chrome.

chrome/browser/autocomplete/shortcuts_provider_extension_unittest.cc

Index: chrome/browser/autocomplete/shortcuts_provider_extension_unittest.cc
diff --git a/chrome/browser/autocomplete/shortcuts_provider_extension_unittest.cc b/chrome/browser/autocomplete/shortcuts_provider_extension_unittest.cc
index 9a88c1eb39596042d6484f0172964cd65afbd417..5d023522969583343fc7e725e08f87c268f1dea2 100644
--- a/chrome/browser/autocomplete/shortcuts_provider_extension_unittest.cc
+++ b/chrome/browser/autocomplete/shortcuts_provider_extension_unittest.cc
@@ -10,7 +10,6 @@
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/autocomplete/chrome_autocomplete_provider_client.h"
@@ -23,7 +22,7 @@
 #include "components/omnibox/browser/autocomplete_result.h"
 #include "components/omnibox/browser/shortcuts_backend.h"
 #include "components/omnibox/browser/shortcuts_provider_test_util.h"
-#include "content/public/test/test_browser_thread.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "extensions/features/features.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -56,9 +55,7 @@ class ShortcutsProviderExtensionTest : public testing::Test {
   void SetUp() override;
   void TearDown() override;
 
-  base::MessageLoopForUI message_loop_;
-  content::TestBrowserThread ui_thread_;
-  content::TestBrowserThread file_thread_;
+  content::TestBrowserThreadBundle test_browser_thread_bundle_;
   TestingProfile profile_;
   ChromeAutocompleteProviderClient client_;
   scoped_refptr<ShortcutsBackend> backend_;
@@ -66,9 +63,7 @@ class ShortcutsProviderExtensionTest : public testing::Test {
 };
 
 ShortcutsProviderExtensionTest::ShortcutsProviderExtensionTest()
-    : ui_thread_(content::BrowserThread::UI, &message_loop_),
-      file_thread_(content::BrowserThread::FILE, &message_loop_),
-      client_(&profile_) {}
+    : client_(&profile_) {}
 
 void ShortcutsProviderExtensionTest::SetUp() {
   ShortcutsBackendFactory::GetInstance()->SetTestingFactoryAndUse(