Ensure tests have an active task runner

chrome/browser/ui/views/omnibox/omnibox_view_views_unittest.cc

 // Copyright (c) 2015 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 "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/command_updater.h"
 #include "chrome/browser/ui/omnibox/omnibox_edit_controller.h"
 #include "chrome/test/base/testing_profile.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/input_method/input_method_configuration.h"
 #include "chrome/browser/chromeos/input_method/mock_input_method_manager.h"
 #endif
 
 namespace {
 
 class TestingOmniboxViewViews : public OmniboxViewViews {
@@ skipping 78 matching lines @@
     omnibox_view_->Init();
   }
 
   void TearDown() override {
     omnibox_view_.reset();
 #if defined(OS_CHROMEOS)
     chromeos::input_method::Shutdown();
 #endif
   }
 
+  content::TestBrowserThreadBundle thread_bundle_;
   TestingProfile profile_;
   CommandUpdater command_updater_;
   TestingOmniboxEditController omnibox_edit_controller_;
   scoped_ptr<TestingOmniboxViewViews> omnibox_view_;
 };
 
 // Checks that a single change of the text in the omnibox invokes
 // only one call to OmniboxViewViews::UpdatePopup().
 TEST_F(OmniboxViewViewsTest, UpdatePopupCall) {
   omnibox_textfield()->InsertChar('a', 0);
   omnibox_view()->CheckUpdatePopupCallInfo(
       1, base::ASCIIToUTF16("a"), gfx::Range(1));
 
   omnibox_textfield()->InsertChar('b', 0);
   omnibox_view()->CheckUpdatePopupCallInfo(
       2, base::ASCIIToUTF16("ab"), gfx::Range(2));
 
   ui::KeyEvent pressed(ui::ET_KEY_PRESSED, ui::VKEY_BACK, 0);
   omnibox_textfield()->OnKeyPressed(pressed);
   omnibox_view()->CheckUpdatePopupCallInfo(
       3, base::ASCIIToUTF16("a"), gfx::Range(1));
 }