drive: FileCache::Store marks the entry as dirty if empty MD5 is given

chrome/browser/chromeos/drive/file_system/download_operation_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/chromeos/drive/file_system/download_operation.h"
 
-#include "base/callback_helpers.h"
 #include "base/file_util.h"
 #include "base/task_runner_util.h"
 #include "chrome/browser/chromeos/drive/fake_free_disk_space_getter.h"
 #include "chrome/browser/chromeos/drive/file_cache.h"
 #include "chrome/browser/chromeos/drive/file_system/operation_test_base.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/drive/fake_drive_service.h"
 #include "google_apis/drive/test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/cros_system_api/constants/cryptohome.h"
@@ skipping 402 matching lines @@
                                             std::string(dirty_size, 'x'));
 
   // Store the file as a cache, marking it to be dirty.
   FileError error = FILE_ERROR_FAILED;
   base::PostTaskAndReplyWithResult(
       blocking_task_runner(),
       FROM_HERE,
       base::Bind(&internal::FileCache::Store,
                  base::Unretained(cache()),
                  GetLocalId(file_in_root),
-                 src_entry.file_specific_info().md5(),
+                 std::string(),
                  dirty_file,
                  internal::FileCache::FILE_OPERATION_COPY),
       google_apis::test_util::CreateCopyResultCallback(&error));
   test_util::RunBlockingPoolTask();
   EXPECT_EQ(FILE_ERROR_OK, error);
-  scoped_ptr<base::ScopedClosureRunner> file_closer;
-  base::PostTaskAndReplyWithResult(
-      blocking_task_runner(),
-      FROM_HERE,
-      base::Bind(&internal::FileCache::OpenForWrite,
-                 base::Unretained(cache()),
-                 GetLocalId(file_in_root),
-                 &file_closer),
-      google_apis::test_util::CreateCopyResultCallback(&error));
-  test_util::RunBlockingPoolTask();
-  EXPECT_EQ(FILE_ERROR_OK, error);
 
   // Record values passed to GetFileContentInitializedCallback().
   FileError init_error;
   base::FilePath init_path;
   scoped_ptr<ResourceEntry> init_entry;
   base::Closure cancel_callback;
 
   base::FilePath file_path;
   scoped_ptr<ResourceEntry> entry;
   operation_->EnsureFileDownloadedByPath(
@@ skipping 50 matching lines @@
 
   int64 cache_file_size = 0;
   EXPECT_TRUE(base::GetFileSize(cache_file_path, &cache_file_size));
   EXPECT_EQ(static_cast<int64>(0), cache_file_size);
   ASSERT_TRUE(entry);
   EXPECT_EQ(cache_file_size, entry->file_info().size());
 }
 
 }  // namespace file_system
 }  // namespace drive