Remove CloseFile from FileSystem.

chrome/browser/chromeos/drive/file_write_helper.cc

Index: chrome/browser/chromeos/drive/file_write_helper.cc
diff --git a/chrome/browser/chromeos/drive/file_write_helper.cc b/chrome/browser/chromeos/drive/file_write_helper.cc
index c48262cd51abdb23171eb0cdc52e30f146cc13ab..b5623edb896502ad314343467945ac244c3e1187 100644
--- a/chrome/browser/chromeos/drive/file_write_helper.cc
+++ b/chrome/browser/chromeos/drive/file_write_helper.cc
@@ -4,26 +4,16 @@
 
 #include "chrome/browser/chromeos/drive/file_write_helper.h"
 
+#include "base/bind.h"
+#include "base/callback.h"
 #include "base/threading/sequenced_worker_pool.h"
+#include "chrome/browser/chromeos/drive/file_system_interface.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace drive {
 
-namespace {
-
-// Emits debug log when FileSystem::CloseFile() is complete.
-void EmitDebugLogForCloseFile(const base::FilePath& file_path,
-                              FileError file_error) {
-  if (file_error != FILE_ERROR_OK) {
-    LOG(WARNING) << "CloseFile failed: " << file_path.AsUTF8Unsafe() << ": "
-                 << file_error;
-  }
-}
-
-}  // namespace
-
 FileWriteHelper::FileWriteHelper(FileSystemInterface* file_system)
     : file_system_(file_system),
       weak_ptr_factory_(this) {
@@ -52,7 +42,8 @@ void FileWriteHelper::PrepareWritableFileAndRunAfterOpenFile(
     const base::FilePath& file_path,
     const OpenFileCallback& callback,
     FileError error,
-    const base::FilePath& local_cache_path) {
+    const base::FilePath& local_cache_path,
+    const base::Closure& close_callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
@@ -66,16 +57,7 @@ void FileWriteHelper::PrepareWritableFileAndRunAfterOpenFile(
   content::BrowserThread::GetBlockingPool()->PostTaskAndReply(
       FROM_HERE,
       base::Bind(callback, FILE_ERROR_OK, local_cache_path),
-      base::Bind(&FileWriteHelper::PrepareWritableFileAndRunAfterCallback,
-                 weak_ptr_factory_.GetWeakPtr(),
-                 file_path));
-}
-
-void FileWriteHelper::PrepareWritableFileAndRunAfterCallback(
-    const base::FilePath& file_path) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  file_system_->CloseFile(file_path,
-                          base::Bind(&EmitDebugLogForCloseFile, file_path));
+      close_callback);
 }
 
 }  // namespace drive