drive: Change FileCache::GetCacheEntry's return type to FileError

chrome/browser/chromeos/drive/remove_stale_cache_files_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 <string>
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 51 matching lines @@
   std::string local_id("pdf:1a2b3c");
   std::string md5("abcdef0123456789");
 
   // Create a stale cache file.
   EXPECT_EQ(FILE_ERROR_OK,
             cache_->Store(local_id, md5, dummy_file,
                           FileCache::FILE_OPERATION_COPY));
 
   // Verify that the cache entry exists.
   FileCacheEntry cache_entry;
-  EXPECT_TRUE(cache_->GetCacheEntry(local_id, &cache_entry));
+  EXPECT_EQ(FILE_ERROR_OK, cache_->GetCacheEntry(local_id, &cache_entry));
 
   ResourceEntry entry;
   EXPECT_EQ(FILE_ERROR_NOT_FOUND,
             resource_metadata_->GetResourceEntryById(local_id, &entry));
 
   // Remove stale cache files.
   RemoveStaleCacheFiles(cache_.get(), resource_metadata_.get());
 
   // Verify that the cache entry is deleted.
-  EXPECT_FALSE(cache_->GetCacheEntry(local_id, &cache_entry));
+  EXPECT_EQ(FILE_ERROR_NOT_FOUND,
+            cache_->GetCacheEntry(local_id, &cache_entry));
 }
 
 TEST_F(RemoveStaleCacheFilesTest, DirtyCacheFiles) {
   base::FilePath dummy_file;
   ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir_.path(), &dummy_file));
 
   // Dirty and deleted (= absent in resource_metada) cache entry.
   std::string local_id_1("file:1");
   EXPECT_EQ(FILE_ERROR_OK,
             cache_->Store(local_id_1, std::string(), dummy_file,
@@ skipping 14 matching lines @@
   EXPECT_EQ(FILE_ERROR_OK,
             cache_->Store(local_id_2, std::string(), dummy_file,
                           FileCache::FILE_OPERATION_COPY));
 
   // Remove stale cache files.
   RemoveStaleCacheFiles(cache_.get(), resource_metadata_.get());
 
   // Dirty cache should be removed if and only if the entry does not exist in
   // resource_metadata.
   FileCacheEntry cache_entry;
-  EXPECT_FALSE(cache_->GetCacheEntry(local_id_1, &cache_entry));
-  EXPECT_TRUE(cache_->GetCacheEntry(local_id_2, &cache_entry));
+  EXPECT_EQ(FILE_ERROR_NOT_FOUND,
+            cache_->GetCacheEntry(local_id_1, &cache_entry));
+  EXPECT_EQ(FILE_ERROR_OK, cache_->GetCacheEntry(local_id_2, &cache_entry));
 }
 
 }  // namespace internal
 }  // namespace drive