mash: Add a simple, temporary preferences store.

components/filesystem/directory_impl_unittest.cc

 // Copyright 2015 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 <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <string>
 
@@ skipping 85 matching lines @@
   directory->Rename("my_file", "my_new_file", Capture(&error));
   ASSERT_TRUE(directory.WaitForIncomingResponse());
   EXPECT_EQ(FileError::OK, error);
 
   // Opening my_file should fail.
 
   error = FileError::FAILED;
   directory->OpenFile("my_file", nullptr, kFlagRead | kFlagOpen,
                       Capture(&error));
   ASSERT_TRUE(directory.WaitForIncomingResponse());
-  EXPECT_EQ(FileError::FAILED, error);
+  EXPECT_EQ(FileError::NOT_FOUND, error);
 
   // Opening my_new_file should succeed.
   error = FileError::FAILED;
   directory->OpenFile("my_new_file", nullptr, kFlagRead | kFlagOpen,
                       Capture(&error));
   ASSERT_TRUE(directory.WaitForIncomingResponse());
   EXPECT_EQ(FileError::OK, error);
 
   // Delete my_new_file (no flags).
   directory->Delete("my_new_file", 0, Capture(&error));
   ASSERT_TRUE(directory.WaitForIncomingResponse());
   EXPECT_EQ(FileError::OK, error);
 
   // Opening my_new_file should fail.
   error = FileError::FAILED;
   directory->OpenFile("my_new_file", nullptr, kFlagRead | kFlagOpen,
                       Capture(&error));
   ASSERT_TRUE(directory.WaitForIncomingResponse());
-  EXPECT_EQ(FileError::FAILED, error);
+  EXPECT_EQ(FileError::NOT_FOUND, error);
 }
 
 TEST_F(DirectoryImplTest, CantOpenDirectoriesAsFiles) {
   DirectoryPtr directory;
   GetTemporaryRoot(&directory);
   FileError error;
 
   {
     // Create a directory called 'my_file'
     DirectoryPtr my_file_directory;
@@ skipping 15 matching lines @@
     ASSERT_TRUE(directory.WaitForIncomingResponse());
     EXPECT_EQ(FileError::NOT_A_FILE, error);
   }
 }
 
 
 // TODO(vtl): Test delete flags.
 
 }  // namespace
 }  // namespace filesystem