Revert 61833 - Add the actual writing-files part of FileWriter.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/3476002

TBR=ericu@google.com
Review URL: http://codereview.chromium.org/3630002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@61842 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 164 deletions

diff --git a/webkit/fileapi/file_writer_delegate.cc b/webkit/fileapi/file_writer_delegate.cc
deleted file mode 100644
index d84d22f32..0000000
--- a/webkit/fileapi/file_writer_delegate.cc
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright (c) 2010 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/file_writer_delegate.h"
-
-#include "base/message_loop.h"
-#include "net/base/net_errors.h"
-#include "webkit/fileapi/file_system_operation.h"
-
-namespace fileapi {
-
-static const int kReadBufSize = 32768;
-
-FileWriterDelegate::FileWriterDelegate(
-    FileSystemOperation* file_system_operation,
-    int64 offset)
-    : file_system_operation_(file_system_operation),
-      file_(base::kInvalidPlatformFileValue),
-      offset_(offset),
-      bytes_read_backlog_(0),
-      bytes_written_(0),
-      bytes_read_(0),
-      io_buffer_(new net::IOBufferWithSize(kReadBufSize)),
-      callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
-      method_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
-}
-
-FileWriterDelegate::~FileWriterDelegate() {
-}
-
-void FileWriterDelegate::Start(base::PlatformFile file, URLRequest* request) {
-  file_ = file;
-  request_ = request;
-  file_stream_.reset(
-      new net::FileStream(
-        file,
-        base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_WRITE |
-            base::PLATFORM_FILE_ASYNC));
-  request_->Start();
-}
-
-void FileWriterDelegate::OnReceivedRedirect(
-    URLRequest* request, const GURL& new_url, bool* defer_redirect) {
-  NOTREACHED();
-  OnError(base::PLATFORM_FILE_ERROR_SECURITY);
-}
-
-void FileWriterDelegate::OnAuthRequired(
-    URLRequest* request, net::AuthChallengeInfo* auth_info) {
-  NOTREACHED();
-  OnError(base::PLATFORM_FILE_ERROR_SECURITY);
-}
-
-void FileWriterDelegate::OnCertificateRequested(
-    URLRequest* request, net::SSLCertRequestInfo* cert_request_info) {
-  NOTREACHED();
-  OnError(base::PLATFORM_FILE_ERROR_SECURITY);
-}
-
-void FileWriterDelegate::OnSSLCertificateError(
-    URLRequest* request, int cert_error, net::X509Certificate* cert) {
-  NOTREACHED();
-  OnError(base::PLATFORM_FILE_ERROR_SECURITY);
-}
-
-void FileWriterDelegate::OnResponseStarted(URLRequest* request) {
-  DCHECK_EQ(request_, request);
-  if (!request->status().is_success()) {
-    OnError(base::PLATFORM_FILE_ERROR_FAILED);
-    return;
-  }
-  int64 error = file_stream_->Seek(net::FROM_BEGIN, offset_);
-  if (error != offset_) {
-    OnError(base::PLATFORM_FILE_ERROR_FAILED);
-    return;
-  }
-  Read();
-}
-
-void FileWriterDelegate::OnReadCompleted(URLRequest* request, int bytes_read) {
-  DCHECK_EQ(request_, request);
-  if (!request->status().is_success()) {
-    OnError(base::PLATFORM_FILE_ERROR_FAILED);
-    return;
-  }
-  OnDataReceived(bytes_read);
-}
-
-void FileWriterDelegate::Read() {
-  bytes_written_ = 0;
-  bytes_read_ = 0;
-  if (request_->Read(io_buffer_.get(), io_buffer_->size(), &bytes_read_)) {
-    MessageLoop::current()->PostTask(
-        FROM_HERE,
-        method_factory_.NewRunnableMethod(
-            &FileWriterDelegate::OnDataReceived, bytes_read_));
-  } else if (!request_->status().is_io_pending()) {
-    OnError(base::PLATFORM_FILE_ERROR_FAILED);
-  }
-}
-
-void FileWriterDelegate::OnDataReceived(int bytes_read) {
-  bytes_read_ = bytes_read;
-  if (!bytes_read_) {  // We're done.
-    OnProgress(0, true);
-  } else {
-    // This could easily be optimized to rotate between a pool of buffers, so
-    // that we could read and write at the same time.  It's not yet clear that
-    // it's necessary.
-    Write();
-  }
-}
-
-void FileWriterDelegate::Write() {
-  int write_response = file_stream_->Write(
-        io_buffer_->data() + bytes_written_,
-        bytes_read_ - bytes_written_,
-        callback_factory_.NewCallback(&FileWriterDelegate::OnDataWritten));
-  if (write_response > 0)
-    MessageLoop::current()->PostTask(
-        FROM_HERE,
-        method_factory_.NewRunnableMethod(
-            &FileWriterDelegate::OnDataWritten, write_response));
-  else if (net::ERR_IO_PENDING != write_response)
-    OnError(base::PLATFORM_FILE_ERROR_FAILED);
-}
-
-void FileWriterDelegate::OnDataWritten(int write_response) {
-  if (write_response > 0) {
-    OnProgress(write_response, false);
-    bytes_written_ += write_response;
-    if (bytes_written_ == bytes_read_)
-      Read();
-    else
-      Write();
-  } else {
-    OnError(base::PLATFORM_FILE_ERROR_FAILED);
-  }
-}
-
-void FileWriterDelegate::OnError(base::PlatformFileError error) {
-  request_->Cancel();
-  file_system_operation_->DidWrite(error, 0, true);
-}
-
-void FileWriterDelegate::OnProgress(int bytes_read, bool done) {
-  DCHECK(bytes_read + bytes_read_backlog_ >= bytes_read_backlog_);
-  static const int kMinProgressDelayMS = 200;
-  base::Time currentTime = base::Time::Now();
-  if (done || last_progress_event_time_.is_null() ||
-      (currentTime - last_progress_event_time_).InMilliseconds() >
-          kMinProgressDelayMS) {
-    file_system_operation_->DidWrite(base::PLATFORM_FILE_OK,
-                                     bytes_read + bytes_read_backlog_, done);
-    last_progress_event_time_ = currentTime;
-    bytes_read_backlog_ = 0;
-  } else {
-    bytes_read_backlog_ += bytes_read;
-  }
-}
-
-}  // namespace fileapi
-