[FileAPI] Replace default leveldb::Env with leveldb::MemEnv in tests.

chrome/browser/sync_file_system/local/syncable_file_operation_runner_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 <string>
 
 #include "base/basictypes.h"
 #include "base/file_util.h"
 #include "base/files/file.h"
 #include "base/location.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/sync_file_system/local/canned_syncable_file_system.h"
 #include "chrome/browser/sync_file_system/local/local_file_change_tracker.h"
 #include "chrome/browser/sync_file_system/local/local_file_sync_context.h"
 #include "chrome/browser/sync_file_system/local/local_file_sync_status.h"
 #include "chrome/browser/sync_file_system/local/sync_file_system_backend.h"
 #include "chrome/browser/sync_file_system/local/syncable_file_operation_runner.h"
 #include "chrome/browser/sync_file_system/local/syncable_file_system_operation.h"
 #include "chrome/browser/sync_file_system/syncable_file_system_util.h"
 #include "content/public/test/mock_blob_url_request_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/leveldatabase/src/helpers/memenv/memenv.h"
+#include "third_party/leveldatabase/src/include/leveldb/env.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 #include "webkit/browser/fileapi/file_system_operation_runner.h"
 
 using fileapi::FileSystemOperation;
 using fileapi::FileSystemURL;
 using content::MockBlobURLRequestContext;
 using content::ScopedTextBlob;
 using base::File;
 
 namespace sync_file_system {
 
 namespace {
 const std::string kParent = "foo";
 const std::string kFile   = "foo/file";
 const std::string kDir    = "foo/dir";
 const std::string kChild  = "foo/dir/bar";
 const std::string kOther  = "bar";
 }  // namespace
 
 class SyncableFileOperationRunnerTest : public testing::Test {
  protected:
   typedef FileSystemOperation::StatusCallback StatusCallback;
 
   // Use the current thread as IO thread so that we can directly call
   // operations in the tests.
   SyncableFileOperationRunnerTest()
       : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP),
+        in_memory_env_(leveldb::NewMemEnv(leveldb::Env::Default())),
         file_system_(GURL("http://example.com"),
+                     in_memory_env_.get(),
                      base::MessageLoopProxy::current().get(),
                      base::MessageLoopProxy::current().get()),
         callback_count_(0),
         write_status_(File::FILE_ERROR_FAILED),
         write_bytes_(0),
         write_complete_(false),
         url_request_context_(file_system_.file_system_context()),
         weak_factory_(this) {}
 
   virtual void SetUp() OVERRIDE {
     ASSERT_TRUE(dir_.CreateUniqueTempDir());
+
     file_system_.SetUp();
     sync_context_ = new LocalFileSyncContext(
         dir_.path(),
+        in_memory_env_.get(),
         base::MessageLoopProxy::current().get(),
         base::MessageLoopProxy::current().get());
     ASSERT_EQ(
         SYNC_STATUS_OK,
         file_system_.MaybeInitializeFileSystemContext(sync_context_.get()));
 
     ASSERT_EQ(File::FILE_OK, file_system_.OpenFileSystem());
     ASSERT_EQ(File::FILE_OK,
               file_system_.CreateDirectory(URL(kParent)));
   }
@@ skipping 48 matching lines @@
     SCOPED_TRACE(testing::Message() << location.ToString());
     EXPECT_EQ(expect, status);
     ++callback_count_;
   }
 
   bool CreateTempFile(base::FilePath* path) {
     return base::CreateTemporaryFileInDir(dir_.path(), path);
   }
 
   ScopedEnableSyncFSDirectoryOperation enable_directory_operation_;
+  content::TestBrowserThreadBundle thread_bundle_;
+
   base::ScopedTempDir dir_;
+  scoped_ptr<leveldb::Env> in_memory_env_;
 
-  content::TestBrowserThreadBundle thread_bundle_;
   CannedSyncableFileSystem file_system_;
   scoped_refptr<LocalFileSyncContext> sync_context_;
 
   int callback_count_;
   File::Error write_status_;
   size_t write_bytes_;
   bool write_complete_;
 
   MockBlobURLRequestContext url_request_context_;
 
@@ skipping 245 matching lines @@
       file_system_.operation_runner()->Truncate(
           URL(kFile), 10,
           ExpectStatus(FROM_HERE, File::FILE_OK));
   file_system_.operation_runner()->Cancel(
       id, ExpectStatus(FROM_HERE, File::FILE_ERROR_INVALID_OPERATION));
   base::MessageLoop::current()->RunUntilIdle();
   EXPECT_EQ(2, callback_count_);
 }
 
 }  // namespace sync_file_system