[FileAPI] Remove Flush() on write completion on SandboxFileSystems

webkit/browser/fileapi/file_system_operation_runner.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 "webkit/browser/fileapi/file_system_operation_runner.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/stl_util.h"
 #include "net/url_request/url_request_context.h"
@@ skipping 242 matching lines @@
   }
 
   scoped_ptr<FileStreamWriter> writer(
       file_system_context_->CreateFileStreamWriter(url, offset));
   if (!writer) {
     // Write is not supported.
     DidWrite(handle, callback, base::File::FILE_ERROR_SECURITY, 0, true);
     return handle.id;
   }
 
+  FileWriterDelegate::FlushPolicy flush_policy =
+      file_system_context_->ShouldFlushOnWriteCompletion(url.type())
+          ? FileWriterDelegate::FLUSH_ON_COMPLETION
+          : FileWriterDelegate::NO_FLUSH_ON_COMPLETION;
   scoped_ptr<FileWriterDelegate> writer_delegate(
-      new FileWriterDelegate(writer.Pass()));
+      new FileWriterDelegate(writer.Pass(), flush_policy));
 
   scoped_ptr<net::URLRequest> blob_request(
       webkit_blob::BlobProtocolHandler::CreateBlobRequest(
           blob.Pass(),
           url_request_context,
           writer_delegate.get()));
 
   PrepareForWrite(handle.id, url);
   operation->Write(
       url, writer_delegate.Pass(), blob_request.Pass(),
@@ skipping 403 matching lines @@
       stray_cancel_callbacks_.find(id);
   if (found_cancel != stray_cancel_callbacks_.end()) {
     // This cancel has been requested after the operation has finished,
     // so report that we failed to stop it.
     found_cancel->second.Run(base::File::FILE_ERROR_INVALID_OPERATION);
     stray_cancel_callbacks_.erase(found_cancel);
   }
 }
 
 }  // namespace fileapi