[Refactor] to rename and re-layer the file_util stack layers.

webkit/fileapi/obfuscated_file_system_file_util_unittest.cc

Index: webkit/fileapi/obfuscated_file_system_file_util_unittest.cc
diff --git a/webkit/fileapi/obfuscated_file_system_file_util_unittest.cc b/webkit/fileapi/obfuscated_file_system_file_util_unittest.cc
deleted file mode 100644
index 879338f119b3ac508322bb3d6a3f734da70c3af8..0000000000000000000000000000000000000000
--- a/webkit/fileapi/obfuscated_file_system_file_util_unittest.cc
+++ /dev/null
@@ -1,1449 +0,0 @@
-// Copyright (c) 2011 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 <algorithm>
-#include <set>
-#include <string>
-
-#include "base/file_path.h"
-#include "base/file_util.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_callback_factory.h"
-#include "base/message_loop.h"
-#include "base/platform_file.h"
-#include "base/scoped_temp_dir.h"
-#include "base/sys_string_conversions.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "webkit/fileapi/file_system_context.h"
-#include "webkit/fileapi/file_system_operation_context.h"
-#include "webkit/fileapi/file_system_path_manager.h"
-#include "webkit/fileapi/file_system_test_helper.h"
-#include "webkit/fileapi/file_system_usage_cache.h"
-#include "webkit/fileapi/obfuscated_file_system_file_util.h"
-#include "webkit/quota/mock_special_storage_policy.h"
-#include "webkit/quota/quota_manager.h"
-#include "webkit/quota/quota_types.h"
-
-using namespace fileapi;
-
-namespace {
-
-FilePath UTF8ToFilePath(const std::string& str) {
-  FilePath::StringType result;
-#if defined(OS_POSIX)
-  result = str;
-#elif defined(OS_WIN)
-  result = base::SysUTF8ToWide(str);
-#endif
-  return FilePath(result);
-}
-
-bool FileExists(const FilePath& path) {
-  return file_util::PathExists(path) && !file_util::DirectoryExists(path);
-}
-
-int64 GetSize(const FilePath& path) {
-  int64 size;
-  EXPECT_TRUE(file_util::GetFileSize(path, &size));
-  return size;
-}
-
-// After a move, the dest exists and the source doesn't.
-// After a copy, both source and dest exist.
-struct CopyMoveTestCaseRecord {
-  bool is_copy_not_move;
-  const char source_path[64];
-  const char dest_path[64];
-  bool cause_overwrite;
-};
-
-const CopyMoveTestCaseRecord kCopyMoveTestCases[] = {
-  // This is the combinatoric set of:
-  //  rename vs. same-name
-  //  different directory vs. same directory
-  //  overwrite vs. no-overwrite
-  //  copy vs. move
-  //  We can never be called with source and destination paths identical, so
-  //  those cases are omitted.
-  {true, "dir0/file0", "dir0/file1", false},
-  {false, "dir0/file0", "dir0/file1", false},
-  {true, "dir0/file0", "dir0/file1", true},
-  {false, "dir0/file0", "dir0/file1", true},
-
-  {true, "dir0/file0", "dir1/file0", false},
-  {false, "dir0/file0", "dir1/file0", false},
-  {true, "dir0/file0", "dir1/file0", true},
-  {false, "dir0/file0", "dir1/file0", true},
-  {true, "dir0/file0", "dir1/file1", false},
-  {false, "dir0/file0", "dir1/file1", false},
-  {true, "dir0/file0", "dir1/file1", true},
-  {false, "dir0/file0", "dir1/file1", true},
-};
-
-struct MigrationTestCaseRecord {
-  bool is_directory;
-  const FilePath::CharType path[64];
-  int64 data_file_size;
-};
-
-const MigrationTestCaseRecord kMigrationTestCases[] = {
-  {true, FILE_PATH_LITERAL("dir a"), 0},
-  {true, FILE_PATH_LITERAL("dir a/dir a"), 0},
-  {true, FILE_PATH_LITERAL("dir a/dir d"), 0},
-  {true, FILE_PATH_LITERAL("dir a/dir d/dir e"), 0},
-  {true, FILE_PATH_LITERAL("dir a/dir d/dir e/dir f"), 0},
-  {true, FILE_PATH_LITERAL("dir a/dir d/dir e/dir g"), 0},
-  {true, FILE_PATH_LITERAL("dir a/dir d/dir e/dir h"), 0},
-  {true, FILE_PATH_LITERAL("dir b"), 0},
-  {true, FILE_PATH_LITERAL("dir b/dir a"), 0},
-  {true, FILE_PATH_LITERAL("dir c"), 0},
-  {false, FILE_PATH_LITERAL("file 0"), 38},
-  {false, FILE_PATH_LITERAL("file 2"), 60},
-  {false, FILE_PATH_LITERAL("file 3"), 0},
-  {false, FILE_PATH_LITERAL("dir a/file 0"), 39},
-  {false, FILE_PATH_LITERAL("dir a/dir d/dir e/dir g/file 0"), 40},
-  {false, FILE_PATH_LITERAL("dir a/dir d/dir e/dir g/file 1"), 41},
-  {false, FILE_PATH_LITERAL("dir a/dir d/dir e/dir g/file 2"), 42},
-  {false, FILE_PATH_LITERAL("dir a/dir d/dir e/dir g/file 3"), 50},
-};
-
-struct OriginEnumerationTestRecord {
-  std::string origin_url;
-  bool has_temporary;
-  bool has_persistent;
-};
-
-const OriginEnumerationTestRecord kOriginEnumerationTestRecords[] = {
-  {"http://example.com", false, true},
-  {"http://example1.com", true, false},
-  {"https://example1.com", true, true},
-  {"file://", false, true},
-  {"http://example.com:8000", false, true},
-};
-
-}  // namespace (anonymous)
-
-// TODO(ericu): The vast majority of this and the other FSFU subclass tests
-// could theoretically be shared.  It would basically be a FSFU interface
-// compliance test, and only the subclass-specific bits that look into the
-// implementation would need to be written per-subclass.
-class ObfuscatedFileSystemFileUtilTest : public testing::Test {
- public:
-  ObfuscatedFileSystemFileUtilTest()
-      : origin_(GURL("http://www.example.com")),
-        type_(kFileSystemTypeTemporary),
-        callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
-        test_helper_(origin_, type_),
-        quota_status_(quota::kQuotaStatusUnknown),
-        usage_(-1) {
-  }
-
-  void SetUp() {
-    ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
-
-    quota_manager_ = new quota::QuotaManager(
-        false /* is_incognito */,
-        data_dir_.path(),
-        base::MessageLoopProxy::current(),
-        base::MessageLoopProxy::current(),
-        NULL /* special storage policy */);
-
-    // Every time we create a new helper, it creates another context, which
-    // creates another path manager, another sandbox_mount_point_provider, and
-    // another OFSFU.  We need to pass in the context to skip all that.
-    file_system_context_ = new FileSystemContext(
-        base::MessageLoopProxy::current(),
-        base::MessageLoopProxy::current(),
-        new quota::MockSpecialStoragePolicy(),
-        quota_manager_->proxy(),
-        data_dir_.path(),
-        false /* incognito */,
-        true /* allow_file_access_from_files */,
-        false /* unlimited_quota */,
-        NULL /* path_manager */);
-
-    obfuscated_file_system_file_util_ =
-        static_cast<ObfuscatedFileSystemFileUtil*>(
-            file_system_context_->path_manager()->GetFileSystemFileUtil(type_));
-
-
-    test_helper_.SetUp(file_system_context_.get(),
-                       obfuscated_file_system_file_util_.get());
-  }
-
-  FileSystemOperationContext* NewContext(FileSystemTestOriginHelper* helper) {
-    FileSystemOperationContext* context;
-    if (helper)
-      context = helper->NewOperationContext();
-    else
-      context = test_helper_.NewOperationContext();
-    context->set_allowed_bytes_growth(1024 * 1024); // Big enough for all tests.
-    return context;
-  }
-
-  // This can only be used after SetUp has run and created file_system_context_
-  // and obfuscated_file_system_file_util_.
-  // Use this for tests which need to run in multiple origins; we need a test
-  // helper per origin.
-  FileSystemTestOriginHelper* NewHelper(
-      const GURL& origin, fileapi::FileSystemType type) {
-    FileSystemTestOriginHelper* helper =
-        new FileSystemTestOriginHelper(origin, type);
-
-    helper->SetUp(file_system_context_.get(),
-                  obfuscated_file_system_file_util_.get());
-    return helper;
-  }
-
-  ObfuscatedFileSystemFileUtil* ofsfu() {
-    return obfuscated_file_system_file_util_.get();
-  }
-
-  const FilePath& test_directory() const {
-    return data_dir_.path();
-  }
-
-  const GURL& origin() const {
-    return origin_;
-  }
-
-  fileapi::FileSystemType type() const {
-    return type_;
-  }
-
-  void GetUsageFromQuotaManager() {
-    quota_manager_->GetUsageAndQuota(
-      origin(), test_helper_.storage_type(),
-      callback_factory_.NewCallback(
-          &ObfuscatedFileSystemFileUtilTest::OnGetUsage));
-    MessageLoop::current()->RunAllPending();
-    EXPECT_EQ(quota::kQuotaStatusOk, quota_status_);
-  }
-
-  void RevokeUsageCache() {
-    quota_manager_->ResetUsageTracker(test_helper_.storage_type());
-    ASSERT_TRUE(test_helper_.RevokeUsageCache());
-  }
-
-  int64 SizeInUsageFile() {
-    return test_helper_.GetCachedOriginUsage();
-  }
-
-  int64 usage() const { return usage_; }
-
-  void OnGetUsage(quota::QuotaStatusCode status, int64 usage, int64 unused) {
-    EXPECT_EQ(quota::kQuotaStatusOk, status);
-    quota_status_ = status;
-    usage_ = usage;
-  }
-
-  void CheckFileAndCloseHandle(
-      const FilePath& virtual_path, PlatformFile file_handle) {
-    scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-    FilePath local_path;
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetLocalFilePath(
-        context.get(), virtual_path, &local_path));
-
-    base::PlatformFileInfo file_info0;
-    FilePath data_path;
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetFileInfo(
-        context.get(), virtual_path, &file_info0, &data_path));
-    EXPECT_EQ(data_path, local_path);
-    EXPECT_TRUE(FileExists(data_path));
-    EXPECT_EQ(0, GetSize(data_path));
-
-    const char data[] = "test data";
-    const int length = arraysize(data) - 1;
-
-    if (base::kInvalidPlatformFileValue == file_handle) {
-      bool created = true;
-      PlatformFileError error;
-      file_handle = base::CreatePlatformFile(
-          data_path,
-          base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_WRITE,
-          &created,
-          &error);
-      ASSERT_NE(base::kInvalidPlatformFileValue, file_handle);
-      ASSERT_EQ(base::PLATFORM_FILE_OK, error);
-      EXPECT_FALSE(created);
-    }
-    ASSERT_EQ(length, base::WritePlatformFile(file_handle, 0, data, length));
-    EXPECT_TRUE(base::ClosePlatformFile(file_handle));
-
-    base::PlatformFileInfo file_info1;
-    EXPECT_EQ(length, GetSize(data_path));
-    context.reset(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetFileInfo(
-        context.get(), virtual_path, &file_info1, &data_path));
-    EXPECT_EQ(data_path, local_path);
-
-    EXPECT_FALSE(file_info0.is_directory);
-    EXPECT_FALSE(file_info1.is_directory);
-    EXPECT_FALSE(file_info0.is_symbolic_link);
-    EXPECT_FALSE(file_info1.is_symbolic_link);
-    EXPECT_EQ(0, file_info0.size);
-    EXPECT_EQ(length, file_info1.size);
-    EXPECT_LE(file_info0.last_modified, file_info1.last_modified);
-
-    context.reset(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->Truncate(
-        context.get(), virtual_path, length * 2));
-    EXPECT_EQ(length * 2, GetSize(data_path));
-
-    context.reset(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->Truncate(
-        context.get(), virtual_path, 0));
-    EXPECT_EQ(0, GetSize(data_path));
-  }
-
-  void ValidateTestDirectory(
-      const FilePath& root_path,
-      const std::set<FilePath::StringType>& files,
-      const std::set<FilePath::StringType>& directories) {
-    scoped_ptr<FileSystemOperationContext> context;
-    std::set<FilePath::StringType>::const_iterator iter;
-    for (iter = files.begin(); iter != files.end(); ++iter) {
-      bool created = true;
-      context.reset(NewContext(NULL));
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-          ofsfu()->EnsureFileExists(
-              context.get(), root_path.Append(*iter),
-              &created));
-      ASSERT_FALSE(created);
-    }
-    for (iter = directories.begin(); iter != directories.end(); ++iter) {
-      context.reset(NewContext(NULL));
-      EXPECT_TRUE(ofsfu()->DirectoryExists(context.get(),
-          root_path.Append(*iter)));
-    }
-  }
-
-  void FillTestDirectory(
-      const FilePath& root_path,
-      std::set<FilePath::StringType>* files,
-      std::set<FilePath::StringType>* directories) {
-    scoped_ptr<FileSystemOperationContext> context;
-    context.reset(NewContext(NULL));
-    std::vector<base::FileUtilProxy::Entry> entries;
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-        ofsfu()->ReadDirectory(context.get(), root_path, &entries));
-    EXPECT_EQ(0UL, entries.size());
-
-    files->clear();
-    files->insert(FILE_PATH_LITERAL("first"));
-    files->insert(FILE_PATH_LITERAL("second"));
-    files->insert(FILE_PATH_LITERAL("third"));
-    directories->clear();
-    directories->insert(FILE_PATH_LITERAL("fourth"));
-    directories->insert(FILE_PATH_LITERAL("fifth"));
-    directories->insert(FILE_PATH_LITERAL("sixth"));
-    std::set<FilePath::StringType>::iterator iter;
-    for (iter = files->begin(); iter != files->end(); ++iter) {
-      bool created = false;
-      context.reset(NewContext(NULL));
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-          ofsfu()->EnsureFileExists(
-              context.get(), root_path.Append(*iter), &created));
-      ASSERT_TRUE(created);
-    }
-    for (iter = directories->begin(); iter != directories->end(); ++iter) {
-      bool exclusive = true;
-      bool recursive = false;
-      context.reset(NewContext(NULL));
-      EXPECT_EQ(base::PLATFORM_FILE_OK,
-          ofsfu()->CreateDirectory(
-              context.get(), root_path.Append(*iter), exclusive, recursive));
-    }
-    ValidateTestDirectory(root_path, *files, *directories);
-  }
-
-  void TestReadDirectoryHelper(const FilePath& root_path) {
-    std::set<FilePath::StringType> files;
-    std::set<FilePath::StringType> directories;
-    FillTestDirectory(root_path, &files, &directories);
-
-    scoped_ptr<FileSystemOperationContext> context;
-    std::vector<base::FileUtilProxy::Entry> entries;
-    context.reset(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-        ofsfu()->ReadDirectory(context.get(), root_path, &entries));
-    std::vector<base::FileUtilProxy::Entry>::iterator entry_iter;
-    EXPECT_EQ(files.size() + directories.size(), entries.size());
-    for (entry_iter = entries.begin(); entry_iter != entries.end();
-        ++entry_iter) {
-      const base::FileUtilProxy::Entry& entry = *entry_iter;
-      std::set<FilePath::StringType>::iterator iter = files.find(entry.name);
-      if (iter != files.end()) {
-        EXPECT_FALSE(entry.is_directory);
-        files.erase(iter);
-        continue;
-      }
-      iter = directories.find(entry.name);
-      EXPECT_FALSE(directories.end() == iter);
-      EXPECT_TRUE(entry.is_directory);
-      directories.erase(iter);
-    }
-  }
-
-  void TestTouchHelper(const FilePath& path, bool is_file) {
-    base::Time last_access_time = base::Time::Now();
-    base::Time last_modified_time = base::Time::Now();
-
-    scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-              ofsfu()->Touch(
-                  context.get(), path, last_access_time, last_modified_time));
-    FilePath local_path;
-    base::PlatformFileInfo file_info;
-    context.reset(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetFileInfo(
-        context.get(), path, &file_info, &local_path));
-    // We compare as time_t here to lower our resolution, to avoid false
-    // negatives caused by conversion to the local filesystem's native
-    // representation and back.
-    EXPECT_EQ(file_info.last_modified.ToTimeT(), last_modified_time.ToTimeT());
-
-    context.reset(NewContext(NULL));
-    last_modified_time += base::TimeDelta::FromHours(1);
-    last_access_time += base::TimeDelta::FromHours(14);
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-              ofsfu()->Touch(
-                  context.get(), path, last_access_time, last_modified_time));
-    context.reset(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetFileInfo(
-        context.get(), path, &file_info, &local_path));
-    EXPECT_EQ(file_info.last_modified.ToTimeT(), last_modified_time.ToTimeT());
-    if (is_file)  // Directories in OFSFU don't support atime.
-      EXPECT_EQ(file_info.last_accessed.ToTimeT(), last_access_time.ToTimeT());
-  }
-
-  void TestCopyInForeignFileHelper(bool overwrite) {
-    ScopedTempDir source_dir;
-    ASSERT_TRUE(source_dir.CreateUniqueTempDir());
-    FilePath root_path = source_dir.path();
-    FilePath src_path = root_path.AppendASCII("file_name");
-    FilePath dest_path(FILE_PATH_LITERAL("new file"));
-    int64 src_file_length = 87;
-
-    base::PlatformFileError error_code;
-    bool created = false;
-    int file_flags = base::PLATFORM_FILE_CREATE | base::PLATFORM_FILE_WRITE;
-    base::PlatformFile file_handle =
-        base::CreatePlatformFile(
-            src_path, file_flags, &created, &error_code);
-    EXPECT_TRUE(created);
-    ASSERT_EQ(base::PLATFORM_FILE_OK, error_code);
-    ASSERT_NE(base::kInvalidPlatformFileValue, file_handle);
-    ASSERT_TRUE(base::TruncatePlatformFile(file_handle, src_file_length));
-    EXPECT_TRUE(base::ClosePlatformFile(file_handle));
-
-    scoped_ptr<FileSystemOperationContext> context;
-
-    if (overwrite) {
-      context.reset(NewContext(NULL));
-      EXPECT_EQ(base::PLATFORM_FILE_OK,
-          ofsfu()->EnsureFileExists(context.get(), dest_path, &created));
-      EXPECT_TRUE(created);
-    }
-
-    const int64 path_cost =
-        ObfuscatedFileSystemFileUtil::ComputeFilePathCost(dest_path);
-    if (!overwrite) {
-      // Verify that file creation requires sufficient quota for the path.
-      context.reset(NewContext(NULL));
-      context->set_allowed_bytes_growth(path_cost + src_file_length - 1);
-      EXPECT_EQ(base::PLATFORM_FILE_ERROR_NO_SPACE,
-          ofsfu()->CopyInForeignFile(context.get(), src_path, dest_path));
-    }
-
-    context.reset(NewContext(NULL));
-    context->set_allowed_bytes_growth(path_cost + src_file_length);
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-        ofsfu()->CopyInForeignFile(context.get(), src_path, dest_path));
-
-    context.reset(NewContext(NULL));
-    EXPECT_TRUE(ofsfu()->PathExists(context.get(), dest_path));
-    context.reset(NewContext(NULL));
-    EXPECT_FALSE(ofsfu()->DirectoryExists(context.get(), dest_path));
-    context.reset(NewContext(NULL));
-    base::PlatformFileInfo file_info;
-    FilePath data_path;
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetFileInfo(
-        context.get(), dest_path, &file_info, &data_path));
-    EXPECT_NE(data_path, src_path);
-    EXPECT_TRUE(FileExists(data_path));
-    EXPECT_EQ(src_file_length, GetSize(data_path));
-
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-        ofsfu()->DeleteFile(context.get(), dest_path));
-  }
-
- private:
-  ScopedTempDir data_dir_;
-  scoped_refptr<ObfuscatedFileSystemFileUtil> obfuscated_file_system_file_util_;
-  scoped_refptr<quota::QuotaManager> quota_manager_;
-  scoped_refptr<FileSystemContext> file_system_context_;
-  GURL origin_;
-  fileapi::FileSystemType type_;
-  base::ScopedCallbackFactory<ObfuscatedFileSystemFileUtilTest>
-      callback_factory_;
-  FileSystemTestOriginHelper test_helper_;
-  quota::QuotaStatusCode quota_status_;
-  int64 usage_;
-
-  DISALLOW_COPY_AND_ASSIGN(ObfuscatedFileSystemFileUtilTest);
-};
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestCreateAndDeleteFile) {
-  base::PlatformFile file_handle = base::kInvalidPlatformFileValue;
-  bool created;
-  FilePath path = UTF8ToFilePath("fake/file");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-  int file_flags = base::PLATFORM_FILE_CREATE | base::PLATFORM_FILE_WRITE;
-
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-            ofsfu()->CreateOrOpen(
-                context.get(), path, file_flags, &file_handle,
-                &created));
-
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-            ofsfu()->DeleteFile(context.get(), path));
-
-  path = UTF8ToFilePath("test file");
-
-  // Verify that file creation requires sufficient quota for the path.
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path) - 1);
-  ASSERT_EQ(base::PLATFORM_FILE_ERROR_NO_SPACE,
-            ofsfu()->CreateOrOpen(
-                context.get(), path, file_flags, &file_handle, &created));
-
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path));
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->CreateOrOpen(
-                context.get(), path, file_flags, &file_handle, &created));
-  ASSERT_TRUE(created);
-  EXPECT_NE(base::kInvalidPlatformFileValue, file_handle);
-
-  CheckFileAndCloseHandle(path, file_handle);
-
-  context.reset(NewContext(NULL));
-  FilePath local_path;
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetLocalFilePath(
-      context.get(), path, &local_path));
-  EXPECT_TRUE(file_util::PathExists(local_path));
-
-  // Verify that deleting a file isn't stopped by zero quota, and that it frees
-  // up quote from its path.
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(0);
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->DeleteFile(context.get(), path));
-  EXPECT_FALSE(file_util::PathExists(local_path));
-  EXPECT_EQ(ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path),
-      context->allowed_bytes_growth());
-
-  context.reset(NewContext(NULL));
-  bool exclusive = true;
-  bool recursive = true;
-  FilePath directory_path = UTF8ToFilePath("series/of/directories");
-  path = directory_path.AppendASCII("file name");
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), directory_path, exclusive, recursive));
-
-  context.reset(NewContext(NULL));
-  file_handle = base::kInvalidPlatformFileValue;
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->CreateOrOpen(
-                context.get(), path, file_flags, &file_handle, &created));
-  ASSERT_TRUE(created);
-  EXPECT_NE(base::kInvalidPlatformFileValue, file_handle);
-
-  CheckFileAndCloseHandle(path, file_handle);
-
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetLocalFilePath(
-      context.get(), path, &local_path));
-  EXPECT_TRUE(file_util::PathExists(local_path));
-
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->DeleteFile(context.get(), path));
-  EXPECT_FALSE(file_util::PathExists(local_path));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestTruncate) {
-  bool created = false;
-  FilePath path = UTF8ToFilePath("file");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-            ofsfu()->Truncate(context.get(), path, 4));
-
-  context.reset(NewContext(NULL));
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->EnsureFileExists(context.get(), path, &created));
-  ASSERT_TRUE(created);
-
-  context.reset(NewContext(NULL));
-  FilePath local_path;
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetLocalFilePath(
-      context.get(), path, &local_path));
-  EXPECT_EQ(0, GetSize(local_path));
-
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->Truncate(
-      context.get(), path, 10));
-  EXPECT_EQ(10, GetSize(local_path));
-
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->Truncate(
-      context.get(), path, 1));
-  EXPECT_EQ(1, GetSize(local_path));
-
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->DirectoryExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->PathExists(context.get(), path));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestEnsureFileExists) {
-  FilePath path = UTF8ToFilePath("fake/file");
-  bool created = false;
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-            ofsfu()->EnsureFileExists(
-                context.get(), path, &created));
-
-  // Verify that file creation requires sufficient quota for the path.
-  context.reset(NewContext(NULL));
-  path = UTF8ToFilePath("test file");
-  created = false;
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path) - 1);
-  ASSERT_EQ(base::PLATFORM_FILE_ERROR_NO_SPACE,
-            ofsfu()->EnsureFileExists(context.get(), path, &created));
-  ASSERT_FALSE(created);
-
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path));
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(context.get(), path, &created));
-  ASSERT_TRUE(created);
-
-  CheckFileAndCloseHandle(path, base::kInvalidPlatformFileValue);
-
-  context.reset(NewContext(NULL));
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(context.get(), path, &created));
-  ASSERT_FALSE(created);
-
-  // Also test in a subdirectory.
-  path = UTF8ToFilePath("path/to/file.txt");
-  context.reset(NewContext(NULL));
-  bool exclusive = true;
-  bool recursive = true;
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), path.DirName(), exclusive, recursive));
-
-  context.reset(NewContext(NULL));
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(context.get(), path, &created));
-  ASSERT_TRUE(created);
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->DirectoryExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->PathExists(context.get(), path));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestDirectoryOps) {
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-
-  bool exclusive = false;
-  bool recursive = false;
-  FilePath path = UTF8ToFilePath("foo/bar");
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-      ofsfu()->DeleteSingleDirectory(context.get(), path));
-
-  FilePath root = UTF8ToFilePath("");
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->DirectoryExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->PathExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->IsDirectoryEmpty(context.get(), root));
-
-  context.reset(NewContext(NULL));
-  exclusive = false;
-  recursive = true;
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->DirectoryExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->PathExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->IsDirectoryEmpty(context.get(), root));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->DirectoryExists(context.get(), path.DirName()));
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->IsDirectoryEmpty(context.get(), path.DirName()));
-
-  // Can't remove a non-empty directory.
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_EMPTY,
-      ofsfu()->DeleteSingleDirectory(context.get(), path.DirName()));
-
-  base::PlatformFileInfo file_info;
-  FilePath local_path;
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetFileInfo(
-      context.get(), path, &file_info, &local_path));
-  EXPECT_TRUE(local_path.empty());
-  EXPECT_TRUE(file_info.is_directory);
-  EXPECT_FALSE(file_info.is_symbolic_link);
-
-  // Same create again should succeed, since exclusive is false.
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  exclusive = true;
-  recursive = true;
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_EXISTS, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  // Verify that deleting a directory isn't stopped by zero quota, and that it
-  // frees up quota from its path.
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(0);
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->DeleteSingleDirectory(context.get(), path));
-  EXPECT_EQ(ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path),
-      context->allowed_bytes_growth());
-
-  path = UTF8ToFilePath("foo/bop");
-
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->DirectoryExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->PathExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->IsDirectoryEmpty(context.get(), path));
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND, ofsfu()->GetFileInfo(
-      context.get(), path, &file_info, &local_path));
-
-  // Verify that file creation requires sufficient quota for the path.
-  exclusive = true;
-  recursive = false;
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path) - 1);
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NO_SPACE, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path));
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->DirectoryExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->PathExists(context.get(), path));
-
-  exclusive = true;
-  recursive = false;
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_EXISTS, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  exclusive = true;
-  recursive = false;
-  path = UTF8ToFilePath("foo");
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_EXISTS, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  path = UTF8ToFilePath("blah");
-
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->DirectoryExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->PathExists(context.get(), path));
-
-  exclusive = true;
-  recursive = false;
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->DirectoryExists(context.get(), path));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->PathExists(context.get(), path));
-
-  exclusive = true;
-  recursive = false;
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_EXISTS, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestReadDirectory) {
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-  bool exclusive = true;
-  bool recursive = true;
-  FilePath path = UTF8ToFilePath("directory/to/use");
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-  TestReadDirectoryHelper(path);
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestReadRootWithSlash) {
-  TestReadDirectoryHelper(UTF8ToFilePath(""));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestReadRootWithEmptyString) {
-  TestReadDirectoryHelper(UTF8ToFilePath("/"));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestReadDirectoryOnFile) {
-  FilePath path = UTF8ToFilePath("file");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-
-  bool created = false;
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->EnsureFileExists(context.get(), path, &created));
-  ASSERT_TRUE(created);
-
-  context.reset(NewContext(NULL));
-  std::vector<base::FileUtilProxy::Entry> entries;
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-      ofsfu()->ReadDirectory(context.get(), path, &entries));
-
-  EXPECT_TRUE(ofsfu()->IsDirectoryEmpty(context.get(), path));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestTouch) {
-  FilePath path = UTF8ToFilePath("file");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-
-  base::Time last_access_time = base::Time::Now();
-  base::Time last_modified_time = base::Time::Now();
-
-  // It's not there yet.
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-            ofsfu()->Touch(
-                context.get(), path, last_access_time, last_modified_time));
-
-  // OK, now create it.
-  context.reset(NewContext(NULL));
-  bool created = false;
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(context.get(), path, &created));
-  ASSERT_TRUE(created);
-  TestTouchHelper(path, true);
-
-  // Now test a directory:
-  context.reset(NewContext(NULL));
-  bool exclusive = true;
-  bool recursive = false;
-  path = UTF8ToFilePath("dir");
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(context.get(),
-      path, exclusive, recursive));
-  TestTouchHelper(path, false);
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestPathQuotas) {
-  FilePath path = UTF8ToFilePath("fake/file");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-
-  path = UTF8ToFilePath("file name");
-  context->set_allowed_bytes_growth(5);
-  bool created = false;
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NO_SPACE,
-            ofsfu()->EnsureFileExists(
-                context.get(), path, &created));
-  EXPECT_FALSE(created);
-  context->set_allowed_bytes_growth(1024);
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(
-                context.get(), path, &created));
-  EXPECT_TRUE(created);
-  int64 path_cost = ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path);
-  EXPECT_EQ(1024 - path_cost, context->allowed_bytes_growth());
-
-  context->set_allowed_bytes_growth(1024);
-  bool exclusive = true;
-  bool recursive = true;
-  path = UTF8ToFilePath("directory/to/use");
-  std::vector<FilePath::StringType> components;
-  path.GetComponents(&components);
-  path_cost = 0;
-  for (std::vector<FilePath::StringType>::iterator iter = components.begin();
-      iter != components.end(); ++iter) {
-    path_cost += ObfuscatedFileSystemFileUtil::ComputeFilePathCost(
-        FilePath(*iter));
-  }
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(1024);
-  EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), path, exclusive, recursive));
-  EXPECT_EQ(1024 - path_cost, context->allowed_bytes_growth());
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestCopyOrMoveFileNotFound) {
-  FilePath source_path = UTF8ToFilePath("path0.txt");
-  FilePath dest_path = UTF8ToFilePath("path1.txt");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-
-  bool is_copy_not_move = false;
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-      ofsfu()->CopyOrMoveFile(context.get(), source_path, dest_path,
-          is_copy_not_move));
-  context.reset(NewContext(NULL));
-  is_copy_not_move = true;
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-      ofsfu()->CopyOrMoveFile(context.get(), source_path, dest_path,
-          is_copy_not_move));
-  source_path = UTF8ToFilePath("dir/dir/file");
-  bool exclusive = true;
-  bool recursive = true;
-  context.reset(NewContext(NULL));
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), source_path.DirName(), exclusive, recursive));
-  is_copy_not_move = false;
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-      ofsfu()->CopyOrMoveFile(context.get(), source_path, dest_path,
-          is_copy_not_move));
-  context.reset(NewContext(NULL));
-  is_copy_not_move = true;
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-      ofsfu()->CopyOrMoveFile(context.get(), source_path, dest_path,
-          is_copy_not_move));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestCopyOrMoveFileSuccess) {
-  const int64 kSourceLength = 5;
-  const int64 kDestLength = 50;
-
-  for (size_t i = 0; i < arraysize(kCopyMoveTestCases); ++i) {
-    SCOPED_TRACE(testing::Message() << "kCopyMoveTestCase " << i);
-    const CopyMoveTestCaseRecord& test_case = kCopyMoveTestCases[i];
-    SCOPED_TRACE(testing::Message() << "\t is_copy_not_move " <<
-      test_case.is_copy_not_move);
-    SCOPED_TRACE(testing::Message() << "\t source_path " <<
-      test_case.source_path);
-    SCOPED_TRACE(testing::Message() << "\t dest_path " <<
-      test_case.dest_path);
-    SCOPED_TRACE(testing::Message() << "\t cause_overwrite " <<
-      test_case.cause_overwrite);
-    scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-
-    bool exclusive = false;
-    bool recursive = true;
-    FilePath source_path = UTF8ToFilePath(test_case.source_path);
-    FilePath dest_path = UTF8ToFilePath(test_case.dest_path);
-
-    context.reset(NewContext(NULL));
-    ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-        context.get(), source_path.DirName(), exclusive, recursive));
-    context.reset(NewContext(NULL));
-    ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-        context.get(), dest_path.DirName(), exclusive, recursive));
-
-    bool created = false;
-    context.reset(NewContext(NULL));
-    ASSERT_EQ(base::PLATFORM_FILE_OK,
-              ofsfu()->EnsureFileExists(context.get(), source_path, &created));
-    ASSERT_TRUE(created);
-    context.reset(NewContext(NULL));
-    ASSERT_EQ(base::PLATFORM_FILE_OK,
-              ofsfu()->Truncate(context.get(), source_path, kSourceLength));
-
-    if (test_case.cause_overwrite) {
-      context.reset(NewContext(NULL));
-      created = false;
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-                ofsfu()->EnsureFileExists(context.get(), dest_path, &created));
-      ASSERT_TRUE(created);
-      context.reset(NewContext(NULL));
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-                ofsfu()->Truncate(context.get(), dest_path, kDestLength));
-    }
-
-    context.reset(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CopyOrMoveFile(context.get(),
-        source_path, dest_path, test_case.is_copy_not_move));
-    if (test_case.is_copy_not_move) {
-      base::PlatformFileInfo file_info;
-      FilePath local_path;
-      context.reset(NewContext(NULL));
-      EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetFileInfo(
-          context.get(), source_path, &file_info, &local_path));
-      EXPECT_EQ(kSourceLength, file_info.size);
-      EXPECT_EQ(base::PLATFORM_FILE_OK,
-                ofsfu()->DeleteFile(context.get(), source_path));
-    } else {
-      base::PlatformFileInfo file_info;
-      FilePath local_path;
-      context.reset(NewContext(NULL));
-      EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND, ofsfu()->GetFileInfo(
-          context.get(), source_path, &file_info, &local_path));
-    }
-    base::PlatformFileInfo file_info;
-    FilePath local_path;
-    EXPECT_EQ(base::PLATFORM_FILE_OK, ofsfu()->GetFileInfo(
-        context.get(), dest_path, &file_info, &local_path));
-    EXPECT_EQ(kSourceLength, file_info.size);
-
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-              ofsfu()->DeleteFile(context.get(), dest_path));
-  }
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestCopyPathQuotas) {
-  FilePath src_path = UTF8ToFilePath("src path");
-  FilePath dest_path = UTF8ToFilePath("destination path");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-  bool created = false;
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->EnsureFileExists(
-      context.get(), src_path, &created));
-
-  bool is_copy = true;
-  // Copy, no overwrite.
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(dest_path) - 1);
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NO_SPACE,
-      ofsfu()->CopyOrMoveFile(context.get(), src_path, dest_path, is_copy));
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(dest_path));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->CopyOrMoveFile(context.get(), src_path, dest_path, is_copy));
-
-  // Copy, with overwrite.
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(0);
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->CopyOrMoveFile(context.get(), src_path, dest_path, is_copy));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestMovePathQuotasWithRename) {
-  FilePath src_path = UTF8ToFilePath("src path");
-  FilePath dest_path = UTF8ToFilePath("destination path");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-  bool created = false;
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->EnsureFileExists(
-      context.get(), src_path, &created));
-
-  bool is_copy = false;
-  // Move, rename, no overwrite.
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(dest_path) -
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(src_path) - 1);
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NO_SPACE,
-      ofsfu()->CopyOrMoveFile(context.get(), src_path, dest_path, is_copy));
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(dest_path) -
-      ObfuscatedFileSystemFileUtil::ComputeFilePathCost(src_path));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->CopyOrMoveFile(context.get(), src_path, dest_path, is_copy));
-
-  context.reset(NewContext(NULL));
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->EnsureFileExists(
-      context.get(), src_path, &created));
-
-  // Move, rename, with overwrite.
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(0);
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->CopyOrMoveFile(context.get(), src_path, dest_path, is_copy));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestMovePathQuotasWithoutRename) {
-  FilePath src_path = UTF8ToFilePath("src path");
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-  bool created = false;
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->EnsureFileExists(
-      context.get(), src_path, &created));
-
-  bool exclusive = true;
-  bool recursive = false;
-  FilePath dir_path = UTF8ToFilePath("directory path");
-  context.reset(NewContext(NULL));
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), dir_path, exclusive, recursive));
-
-  FilePath dest_path = dir_path.Append(src_path);
-
-  bool is_copy = false;
-  int64 allowed_bytes_growth = -1000;  // Over quota, this should still work.
-  // Move, no rename, no overwrite.
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(allowed_bytes_growth);
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->CopyOrMoveFile(context.get(), src_path, dest_path, is_copy));
-  EXPECT_EQ(allowed_bytes_growth, context->allowed_bytes_growth());
-
-  // Move, no rename, with overwrite.
-  context.reset(NewContext(NULL));
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->EnsureFileExists(
-      context.get(), src_path, &created));
-  context.reset(NewContext(NULL));
-  context->set_allowed_bytes_growth(allowed_bytes_growth);
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->CopyOrMoveFile(context.get(), src_path, dest_path, is_copy));
-  EXPECT_EQ(
-      allowed_bytes_growth +
-          ObfuscatedFileSystemFileUtil::ComputeFilePathCost(src_path),
-      context->allowed_bytes_growth());
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestCopyInForeignFile) {
-  TestCopyInForeignFileHelper(false /* overwrite */);
-  TestCopyInForeignFileHelper(true /* overwrite */);
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestEnumerator) {
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-  FilePath src_path = UTF8ToFilePath("source dir");
-  bool exclusive = true;
-  bool recursive = false;
-  ASSERT_EQ(base::PLATFORM_FILE_OK, ofsfu()->CreateDirectory(
-      context.get(), src_path, exclusive, recursive));
-
-  std::set<FilePath::StringType> files;
-  std::set<FilePath::StringType> directories;
-  FillTestDirectory(src_path, &files, &directories);
-
-  FilePath dest_path = UTF8ToFilePath("destination dir");
-
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->DirectoryExists(context.get(), dest_path));
-  context.reset(NewContext(NULL));
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->Copy(context.get(), src_path, dest_path));
-
-  ValidateTestDirectory(dest_path, files, directories);
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->DirectoryExists(context.get(), src_path));
-  context.reset(NewContext(NULL));
-  EXPECT_TRUE(ofsfu()->DirectoryExists(context.get(), dest_path));
-  context.reset(NewContext(NULL));
-  recursive = true;
-  ASSERT_EQ(base::PLATFORM_FILE_OK,
-      ofsfu()->Delete(context.get(), dest_path, recursive));
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->DirectoryExists(context.get(), dest_path));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestMigration) {
-  ScopedTempDir source_dir;
-  ASSERT_TRUE(source_dir.CreateUniqueTempDir());
-  FilePath root_path = source_dir.path().AppendASCII("chrome-pLmnMWXE7NzTFRsn");
-  ASSERT_TRUE(file_util::CreateDirectory(root_path));
-
-  for (size_t i = 0; i < arraysize(kMigrationTestCases); ++i) {
-    SCOPED_TRACE(testing::Message() << "Creating kMigrationTestPath " << i);
-    const MigrationTestCaseRecord& test_case = kMigrationTestCases[i];
-    FilePath local_src_path = root_path.Append(test_case.path);
-    if (test_case.is_directory) {
-      ASSERT_TRUE(
-          file_util::CreateDirectory(local_src_path));
-    } else {
-      base::PlatformFileError error_code;
-      bool created = false;
-      int file_flags = base::PLATFORM_FILE_CREATE | base::PLATFORM_FILE_WRITE;
-      base::PlatformFile file_handle =
-          base::CreatePlatformFile(
-              local_src_path, file_flags, &created, &error_code);
-      EXPECT_TRUE(created);
-      ASSERT_NE(base::kInvalidPlatformFileValue, file_handle);
-      ASSERT_EQ(base::PLATFORM_FILE_OK, error_code);
-      ASSERT_TRUE(
-          base::TruncatePlatformFile(file_handle, test_case.data_file_size));
-      EXPECT_TRUE(base::ClosePlatformFile(file_handle));
-    }
-  }
-
-  EXPECT_TRUE(ofsfu()->MigrateFromOldSandbox(origin(), type(), root_path));
-
-  FilePath new_root =
-    test_directory().AppendASCII("File System").AppendASCII("000").Append(
-        ofsfu()->GetDirectoryNameForType(type())).AppendASCII("Legacy");
-  for (size_t i = 0; i < arraysize(kMigrationTestCases); ++i) {
-    SCOPED_TRACE(testing::Message() << "Validating kMigrationTestPath " << i);
-    const MigrationTestCaseRecord& test_case = kMigrationTestCases[i];
-    FilePath local_data_path = new_root.Append(test_case.path);
-#if defined(OS_WIN)
-    local_data_path = local_data_path.NormalizeWindowsPathSeparators();
-#endif
-    scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-    base::PlatformFileInfo ofsfu_file_info;
-    FilePath data_path;
-    SCOPED_TRACE(testing::Message() << "Path is " << test_case.path);
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-        ofsfu()->GetFileInfo(context.get(), FilePath(test_case.path),
-            &ofsfu_file_info, &data_path));
-    if (test_case.is_directory) {
-      EXPECT_TRUE(ofsfu_file_info.is_directory);
-    } else {
-      base::PlatformFileInfo platform_file_info;
-      SCOPED_TRACE(testing::Message() << "local_data_path is " <<
-          local_data_path.value());
-      SCOPED_TRACE(testing::Message() << "data_path is " << data_path.value());
-      ASSERT_TRUE(file_util::GetFileInfo(local_data_path, &platform_file_info));
-      EXPECT_EQ(test_case.data_file_size, platform_file_info.size);
-      EXPECT_FALSE(platform_file_info.is_directory);
-      scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-      EXPECT_EQ(local_data_path, data_path);
-      EXPECT_EQ(platform_file_info.size, ofsfu_file_info.size);
-      EXPECT_FALSE(ofsfu_file_info.is_directory);
-    }
-  }
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestOriginEnumerator) {
-  scoped_ptr<ObfuscatedFileSystemFileUtil::AbstractOriginEnumerator>
-      enumerator(ofsfu()->CreateOriginEnumerator());
-  // The test helper starts out with a single filesystem.
-  EXPECT_TRUE(enumerator.get());
-  EXPECT_EQ(origin(), enumerator->Next());
-  ASSERT_TRUE(type() == kFileSystemTypeTemporary);
-  EXPECT_TRUE(enumerator->HasFileSystemType(kFileSystemTypeTemporary));
-  EXPECT_FALSE(enumerator->HasFileSystemType(kFileSystemTypePersistent));
-  EXPECT_EQ(GURL(), enumerator->Next());
-  EXPECT_FALSE(enumerator->HasFileSystemType(kFileSystemTypeTemporary));
-  EXPECT_FALSE(enumerator->HasFileSystemType(kFileSystemTypePersistent));
-
-  std::set<GURL> origins_expected;
-  origins_expected.insert(origin());
-
-  for (size_t i = 0; i < arraysize(kOriginEnumerationTestRecords); ++i) {
-    SCOPED_TRACE(testing::Message() <<
-        "Validating kOriginEnumerationTestRecords " << i);
-    const OriginEnumerationTestRecord& record =
-        kOriginEnumerationTestRecords[i];
-    GURL origin_url(record.origin_url);
-    origins_expected.insert(origin_url);
-    if (record.has_temporary) {
-      scoped_ptr<FileSystemTestOriginHelper> helper(
-          NewHelper(origin_url, kFileSystemTypeTemporary));
-      scoped_ptr<FileSystemOperationContext> context(NewContext(helper.get()));
-      context->set_src_origin_url(origin_url);
-      context->set_src_type(kFileSystemTypeTemporary);
-      bool created = false;
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-                ofsfu()->EnsureFileExists(context.get(),
-                    FilePath().AppendASCII("file"), &created));
-      EXPECT_TRUE(created);
-    }
-    if (record.has_persistent) {
-      scoped_ptr<FileSystemTestOriginHelper> helper(
-          NewHelper(origin_url, kFileSystemTypePersistent));
-      scoped_ptr<FileSystemOperationContext> context(NewContext(helper.get()));
-      context->set_src_origin_url(origin_url);
-      context->set_src_type(kFileSystemTypePersistent);
-      bool created = false;
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-                ofsfu()->EnsureFileExists(context.get(),
-                    FilePath().AppendASCII("file"), &created));
-      EXPECT_TRUE(created);
-    }
-  }
-  enumerator.reset(ofsfu()->CreateOriginEnumerator());
-  EXPECT_TRUE(enumerator.get());
-  std::set<GURL> origins_found;
-  GURL origin_url;
-  while (!(origin_url = enumerator->Next()).is_empty()) {
-    origins_found.insert(origin_url);
-    SCOPED_TRACE(testing::Message() << "Handling " << origin_url.spec());
-    bool found = false;
-    for (size_t i = 0; !found && i < arraysize(kOriginEnumerationTestRecords);
-        ++i) {
-      const OriginEnumerationTestRecord& record =
-          kOriginEnumerationTestRecords[i];
-      if (GURL(record.origin_url) != origin_url)
-        continue;
-      found = true;
-      EXPECT_EQ(record.has_temporary,
-          enumerator->HasFileSystemType(kFileSystemTypeTemporary));
-      EXPECT_EQ(record.has_persistent,
-          enumerator->HasFileSystemType(kFileSystemTypePersistent));
-    }
-    // Deal with the default filesystem created by the test helper.
-    if (!found && origin_url == origin()) {
-      ASSERT_TRUE(type() == kFileSystemTypeTemporary);
-      EXPECT_EQ(true,
-          enumerator->HasFileSystemType(kFileSystemTypeTemporary));
-      EXPECT_EQ(false,
-          enumerator->HasFileSystemType(kFileSystemTypePersistent));
-      found = true;
-    }
-    EXPECT_TRUE(found);
-  }
-
-  std::set<GURL> diff;
-  std::set_symmetric_difference(origins_expected.begin(),
-      origins_expected.end(), origins_found.begin(), origins_found.end(),
-      inserter(diff, diff.begin()));
-  EXPECT_TRUE(diff.empty());
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestRevokeUsageCache) {
-  scoped_ptr<FileSystemOperationContext> context(NewContext(NULL));
-
-  int64 expected_quota = 0;
-
-  for (size_t i = 0; i < arraysize(kMigrationTestCases); ++i) {
-    SCOPED_TRACE(testing::Message() << "Creating kMigrationTestPath " << i);
-    const MigrationTestCaseRecord& test_case = kMigrationTestCases[i];
-    FilePath path(test_case.path);
-    expected_quota += ObfuscatedFileSystemFileUtil::ComputeFilePathCost(path);
-    if (test_case.is_directory) {
-      bool exclusive = true;
-      bool recursive = false;
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-          ofsfu()->CreateDirectory(context.get(), path, exclusive, recursive));
-    } else {
-      bool created = false;
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-          ofsfu()->EnsureFileExists(context.get(), path, &created));
-      ASSERT_TRUE(created);
-      ASSERT_EQ(base::PLATFORM_FILE_OK,
-                ofsfu()->Truncate(context.get(), path,
-                    test_case.data_file_size));
-      expected_quota += test_case.data_file_size;
-    }
-  }
-  EXPECT_EQ(expected_quota, SizeInUsageFile());
-  RevokeUsageCache();
-  EXPECT_EQ(-1, SizeInUsageFile());
-  GetUsageFromQuotaManager();
-  EXPECT_EQ(expected_quota, SizeInUsageFile());
-  EXPECT_EQ(expected_quota, usage());
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestInconsistency) {
-  const FilePath kPath1 = FilePath().AppendASCII("hoge");
-  const FilePath kPath2 = FilePath().AppendASCII("fuga");
-
-  scoped_ptr<FileSystemOperationContext> context;
-  base::PlatformFile file;
-  base::PlatformFileInfo file_info;
-  FilePath data_path;
-  bool created = false;
-
-  // Create a non-empty file.
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(context.get(), kPath1, &created));
-  EXPECT_TRUE(created);
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->Truncate(context.get(), kPath1, 10));
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->GetFileInfo(
-                context.get(), kPath1, &file_info, &data_path));
-  EXPECT_EQ(10, file_info.size);
-
-  // Destroy database to make inconsistency between database and filesystem.
-  ofsfu()->DestroyDirectoryDatabase(origin(), type());
-
-  // Try to get file info of broken file.
-  context.reset(NewContext(NULL));
-  EXPECT_FALSE(ofsfu()->PathExists(context.get(), kPath1));
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(context.get(), kPath1, &created));
-  EXPECT_TRUE(created);
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->GetFileInfo(
-                context.get(), kPath1, &file_info, &data_path));
-  EXPECT_EQ(0, file_info.size);
-
-  // Make another broken file to |kPath2|.
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(context.get(), kPath2, &created));
-  EXPECT_TRUE(created);
-
-  // Destroy again.
-  ofsfu()->DestroyDirectoryDatabase(origin(), type());
-
-  // Repair broken |kPath1|.
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_ERROR_NOT_FOUND,
-            ofsfu()->Touch(context.get(), kPath1, base::Time::Now(),
-                           base::Time::Now()));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->EnsureFileExists(context.get(), kPath1, &created));
-  EXPECT_TRUE(created);
-
-  // Copy from sound |kPath1| to broken |kPath2|.
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->CopyOrMoveFile(context.get(), kPath1, kPath2,
-                                    true /* copy */));
-
-  ofsfu()->DestroyDirectoryDatabase(origin(), type());
-  context.reset(NewContext(NULL));
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->CreateOrOpen(
-                context.get(), kPath1,
-                base::PLATFORM_FILE_READ | base::PLATFORM_FILE_CREATE,
-                &file, &created));
-  EXPECT_TRUE(created);
-  EXPECT_TRUE(base::GetPlatformFileInfo(file, &file_info));
-  EXPECT_EQ(0, file_info.size);
-  EXPECT_TRUE(base::ClosePlatformFile(file));
-}
-
-TEST_F(ObfuscatedFileSystemFileUtilTest, TestIncompleteDirectoryReading) {
-  const FilePath kPath[] = {
-    FilePath().AppendASCII("foo"),
-    FilePath().AppendASCII("bar"),
-    FilePath().AppendASCII("baz")
-  };
-  scoped_ptr<FileSystemOperationContext> context;
-
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kPath); ++i) {
-    bool created = false;
-    context.reset(NewContext(NULL));
-    EXPECT_EQ(base::PLATFORM_FILE_OK,
-              ofsfu()->EnsureFileExists(context.get(), kPath[i], &created));
-    EXPECT_TRUE(created);
-  }
-
-  context.reset(NewContext(NULL));
-  std::vector<base::FileUtilProxy::Entry> entries;
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->ReadDirectory(context.get(), FilePath(), &entries));
-  EXPECT_EQ(3u, entries.size());
-
-  context.reset(NewContext(NULL));
-  FilePath local_path;
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->GetLocalFilePath(context.get(), kPath[0], &local_path));
-  EXPECT_TRUE(file_util::Delete(local_path, false));
-
-  context.reset(NewContext(NULL));
-  entries.clear();
-  EXPECT_EQ(base::PLATFORM_FILE_OK,
-            ofsfu()->ReadDirectory(context.get(), FilePath(), &entries));
-  EXPECT_EQ(ARRAYSIZE_UNSAFE(kPath) - 1, entries.size());
-}