Update callers of CreateFileSystemOperation so more detailed error codes can be returned. Where app…

webkit/fileapi/sandbox_file_stream_writer.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 "webkit/fileapi/sandbox_file_stream_writer.h"
 
 #include "base/file_util_proxy.h"
 #include "base/platform_file.h"
 #include "base/sequenced_task_runner.h"
 #include "net/base/io_buffer.h"
@@ skipping 48 matching lines @@
 
 SandboxFileStreamWriter::~SandboxFileStreamWriter() {}
 
 int SandboxFileStreamWriter::Write(
     net::IOBuffer* buf, int buf_len,
     const net::CompletionCallback& callback) {
   has_pending_operation_ = true;
   if (local_file_writer_.get())
     return WriteInternal(buf, buf_len, callback);
 
+  base::PlatformFileError error_code;
   FileSystemOperation* operation =
-      file_system_context_->CreateFileSystemOperation(url_);
+      file_system_context_->CreateFileSystemOperation(url_, &error_code);
+  if (error_code != base::PLATFORM_FILE_OK)
+    return net::PlatformFileErrorToNetError(error_code);
+
   DCHECK(operation);
   net::CompletionCallback write_task =
       base::Bind(&SandboxFileStreamWriter::DidInitializeForWrite,
                  weak_factory_.GetWeakPtr(),
                  make_scoped_refptr(buf), buf_len, callback);
   operation->GetMetadata(
       url_, base::Bind(&SandboxFileStreamWriter::DidGetFileInfo,
                        weak_factory_.GetWeakPtr(), write_task));
   return net::ERR_IO_PENDING;
 }
@@ skipping 143 matching lines @@
     return false;
 
   net::CompletionCallback pending_cancel = cancel_callback_;
   has_pending_operation_ = false;
   cancel_callback_.Reset();
   pending_cancel.Run(net::OK);
   return true;
 }
 
 }  // namespace fileapi