Split recursive Copy/Move into async tasks and support cross operation (in local case)

webkit/fileapi/local_file_system_operation_unittest.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.
 
 #include "webkit/fileapi/local_file_system_operation.h"
 
 #include "base/bind.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 667 matching lines @@
   FilePath dest_dir_path(CreateUniqueDir());
   operation()->Copy(URLForPath(src_dir_path), URLForPath(dest_dir_path),
                     RecordStatusCallback());
   MessageLoop::current()->RunUntilIdle();
   EXPECT_EQ(base::PLATFORM_FILE_OK, status());
   EXPECT_TRUE(DirectoryExists(dest_dir_path.Append(
       VirtualPath::BaseName(child_dir_path))));
   EXPECT_TRUE(FileExists(dest_dir_path.Append(
       VirtualPath::BaseName(child_dir_path)).Append(
       VirtualPath::BaseName(grandchild_file_path))));
-  EXPECT_EQ(1, quota_manager_proxy()->notify_storage_accessed_count());
+
+  // For recursive copy we may record multiple read access.
+  EXPECT_GE(quota_manager_proxy()->notify_storage_accessed_count(), 1);
 
   EXPECT_EQ(2, change_observer()->get_and_reset_create_directory_count());
   EXPECT_EQ(1, change_observer()->get_and_reset_remove_directory_count());
   EXPECT_EQ(1, change_observer()->get_and_reset_create_file_from_count());
   EXPECT_TRUE(change_observer()->HasNoChange());
 }
 
 TEST_F(LocalFileSystemOperationTest, TestCopyInForeignFileSuccess) {
   FilePath src_local_disk_file_path;
   file_util::CreateTemporaryFile(&src_local_disk_file_path);
@@ skipping 496 matching lines @@
   EXPECT_FALSE(info().is_directory);
   EXPECT_EQ(PlatformPath(file_path), path());
   EXPECT_TRUE(change_observer()->HasNoChange());
 
   // The FileSystemOpration implementation does not create a
   // shareable file reference.
   EXPECT_EQ(NULL, shareable_file_ref());
 }
 
 }  // namespace fileapi