Downloads: replace BrowserThread::FILE with task scheduler.

chrome/browser/extensions/api/downloads/downloads_api_browsertest.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.
 
 // Disable everything on windows only. http://crbug.com/306144
 #ifndef OS_WIN
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 30 matching lines @@
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_features.h"
 #include "content/public/test/download_test_observer.h"
 #include "content/public/test/test_download_request_handler.h"
+#include "content/public/test/test_utils.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/notification_types.h"
 #include "net/base/data_url.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "net/test/url_request/url_request_slow_download_job.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_job.h"
 #include "net/url_request/url_request_job_factory.h"
 #include "net/url_request/url_request_job_factory_impl.h"
@@ skipping 934 matching lines @@
   // Now create another download.
   download_item = CreateSlowTestDownload();
   ASSERT_TRUE(download_item);
   ASSERT_FALSE(download_item->GetTargetFilePath().empty());
   args32 = base::StringPrintf("[%d, {\"size\": 32}]", download_item->GetId());
 
   // Cancel the download. As long as the download has a target path, we should
   // be able to query the file icon.
   download_item->Cancel(true);
   ASSERT_FALSE(download_item->GetTargetFilePath().empty());
-  // Let cleanup complete on the FILE thread.
-  content::RunAllPendingInMessageLoop(BrowserThread::FILE);
+  // Let cleanup complete on blocking threads.
+  content::RunAllBlockingPoolTasksUntilIdle();
   // Check the path passed to the icon extractor post-cancellation.
   EXPECT_TRUE(RunFunctionAndReturnString(MockedGetFileIconFunction(
           download_item->GetTargetFilePath(), IconLoader::NORMAL, "foo"),
       args32,
       &result_string));
 
   // Simulate an error during icon load by invoking the mock with an empty
   // result string.
   std::string error = RunFunctionAndReturnError(
       MockedGetFileIconFunction(download_item->GetTargetFilePath(),
@@ skipping 3287 matching lines @@
   EXPECT_EQ(downloads::FILENAME_CONFLICT_ACTION_PROMPT, conflict_action);
   EXPECT_FALSE(warnings.empty());
   EXPECT_EQ(Warning::kDownloadFilenameConflict,
             warnings.begin()->warning_type());
   EXPECT_EQ("incumbent", warnings.begin()->extension_id());
 }
 
 }  // namespace extensions
 
 #endif  // http://crbug.com/306144