Ensure tests have an active task runner

chrome/browser/extensions/error_console/error_console_unittest.cc

 // Copyright 2013 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/extensions/error_console/error_console.h"
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/common/extensions/features/feature_channel.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/crx_file/id_util.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "extensions/browser/extension_error.h"
 #include "extensions/browser/extension_error_test_util.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extension_builder.h"
 #include "extensions/common/feature_switch.h"
 #include "extensions/common/value_builder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
@@ skipping 12 matching lines @@
     // Errors are only kept if we have the FeatureSwitch and have Developer Mode
     // enabled.
     FeatureSwitch::error_console()->SetOverrideValue(
         FeatureSwitch::OVERRIDE_ENABLED);
     profile_.reset(new TestingProfile);
     profile_->GetPrefs()->SetBoolean(prefs::kExtensionsUIDeveloperMode, true);
     error_console_ = ErrorConsole::Get(profile_.get());
   }
 
  protected:
+  content::TestBrowserThreadBundle thread_bundle_;
   scoped_ptr<TestingProfile> profile_;
   ErrorConsole* error_console_;
 };
 
 // Test that the error console is enabled/disabled appropriately.
 TEST_F(ErrorConsoleUnitTest, EnableAndDisableErrorConsole) {
   // Start in Dev Channel, without the feature switch.
   scoped_ptr<ScopedCurrentChannel> channel_override(
       new ScopedCurrentChannel(chrome::VersionInfo::CHANNEL_DEV));
   ASSERT_EQ(chrome::VersionInfo::CHANNEL_DEV, GetCurrentChannel());
@@ skipping 209 matching lines @@
   error_console_->ReportError(
       CreateNewRuntimeError(packed_extension->id(), "runtime error 4"));
   EXPECT_EQ(2u,  // We should still have the first two errors.
             error_console_->GetErrorsForExtension(
                 unpacked_extension->id()).size());
   EXPECT_FALSE(error_console_->IsReportingEnabledForExtension(
       unpacked_extension->id()));
 }
 
 }  // namespace extensions