Use content::RunBlockingPoolTask() in tests.

chrome/browser/extensions/extension_garbage_collector_chromeos_unittest.cc

 // Copyright 2014 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 "base/files/file_util.h"
+#include "chrome/browser/extensions/extension_garbage_collector_chromeos.h"
+
+#include <string>
+#include <vector>
+
+#include "base/file_util.h"

[Lei Zhang, 2014/09/19 21:10:13]

Please be aware that this is going away. Use base/files/file_util.h in the
future. I had removed all references, but they keep sneaking back in.

 #include "base/prefs/scoped_user_pref_update.h"
 #include "base/prefs/testing_pref_service.h"
 #include "base/strings/string_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/login/users/fake_user_manager.h"
 #include "chrome/browser/chromeos/login/users/scoped_user_manager_enabler.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/extensions/extension_assets_manager_chromeos.h"
-#include "chrome/browser/extensions/extension_garbage_collector_chromeos.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_service_test_base.h"
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile.h"
 #include "chromeos/login/user_names.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/plugin_service.h"
+#include "content/public/test/test_utils.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/install_flag.h"
 #include "extensions/common/manifest_constants.h"
 
 namespace {
 const char kExtensionId1[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
 const char kExtensionId2[] = "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb";
 }  // namespace
 
 namespace extensions {
@@ skipping 36 matching lines @@
   }
 
   virtual void TearDown() OVERRIDE {
     TestingBrowserProcess::GetGlobal()->SetLocalState(NULL);
   }
 
   void GarbageCollectExtensions() {
     ExtensionGarbageCollector::Get(profile_.get())
         ->GarbageCollectExtensionsForTest();
     // Wait for GarbageCollectExtensions task to complete.
-    content::BrowserThread::GetBlockingPool()->FlushForTesting();
+    content::RunAllBlockingPoolTasksUntilIdle();
   }
 
   base::FilePath CreateSharedExtensionDir(const std::string& id,
                                           const std::string& version,
                                           const base::FilePath& shared_dir) {
     base::FilePath path = shared_dir.AppendASCII(id).AppendASCII(version);
     CreateDirectory(path);
     return path;
   }
 
@@ skipping 98 matching lines @@
 
   const base::DictionaryValue* shared_extensions = local_state().GetDictionary(
       ExtensionAssetsManagerChromeOS::kSharedExtensions);
   ASSERT_TRUE(shared_extensions);
 
   EXPECT_FALSE(shared_extensions->HasKey(kExtensionId1));
   EXPECT_TRUE(shared_extensions->HasKey(kExtensionId2));
 }
 
 }  // namespace extensions