Make downloads_api functions synchronous

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 1067 matching lines @@
   ASSERT_TRUE(item.get());
 
   std::unique_ptr<base::Value> result(
       RunFunctionAndReturnResult(new DownloadsSearchFunction(), "[{}]"));
   ASSERT_TRUE(result.get());
   base::ListValue* result_list = NULL;
   ASSERT_TRUE(result->GetAsList(&result_list));
   ASSERT_EQ(1UL, result_list->GetSize());
 }
 
+#if !defined(OS_CHROMEOS)
+IN_PROC_BROWSER_TEST_F(DownloadExtensionTest,
+                       DownloadsShowFunction) {
+  ScopedCancellingItem item(CreateSlowTestDownload());
+  ASSERT_TRUE(item.get());
+
+  RunFunction(new DownloadsShowFunction(), DownloadItemIdAsArgList(item.get()));
+}
+
+IN_PROC_BROWSER_TEST_F(DownloadExtensionTest,
+                       DownloadsShowDefaultFolderFunction) {
+  ScopedCancellingItem item(CreateSlowTestDownload());
+  ASSERT_TRUE(item.get());
+
+  RunFunction(new DownloadsShowDefaultFolderFunction(),
+              DownloadItemIdAsArgList(item.get()));
+}
+
+IN_PROC_BROWSER_TEST_F(DownloadExtensionTest,
+                       DownloadsDragFunction) {
+  ScopedCancellingItem item(CreateSlowTestDownload());
+  ASSERT_TRUE(item.get());
+
+  RunFunction(new DownloadsDragFunction(), DownloadItemIdAsArgList(item.get()));
+}
+#endif
+
+
 // Test the |filenameRegex| parameter for search().
 IN_PROC_BROWSER_TEST_F(DownloadExtensionTest,
     DownloadExtensionTest_SearchFilenameRegex) {
   const HistoryDownloadInfo kHistoryInfo[] = {
     { FILE_PATH_LITERAL("foobar"),
       DownloadItem::COMPLETE,
       content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS },
     { FILE_PATH_LITERAL("baz"),
       DownloadItem::COMPLETE,
       content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS }
@@ skipping 3181 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