Revert 244982 "Revert 244857 "net: Remove classes which were use..."

net/base/upload_file_element_reader.cc

Index: net/base/upload_file_element_reader.cc
diff --git a/net/base/upload_file_element_reader.cc b/net/base/upload_file_element_reader.cc
index f32015734468edb3adae17877fd0bb0a4f157258..82159e43006f2caf1f9697e304d5e113ce5c1762 100644
--- a/net/base/upload_file_element_reader.cc
+++ b/net/base/upload_file_element_reader.cc
@@ -247,52 +247,4 @@ UploadFileElementReader::ScopedOverridingContentLengthForTests::
   overriding_content_length = 0;
 }
 
-UploadFileElementReaderSync::UploadFileElementReaderSync(
-    const base::FilePath& path,
-    uint64 range_offset,
-    uint64 range_length,
-    const base::Time& expected_modification_time)
-    : path_(path),
-      range_offset_(range_offset),
-      range_length_(range_length),
-      expected_modification_time_(expected_modification_time),
-      content_length_(0),
-      bytes_remaining_(0) {
-}
-
-UploadFileElementReaderSync::~UploadFileElementReaderSync() {
-}
-
-int UploadFileElementReaderSync::Init(const CompletionCallback& callback) {
-  bytes_remaining_ = 0;
-  content_length_ = 0;
-  file_stream_.reset();
-
-  const int result = InitInternal(path_, range_offset_, range_length_,
-                                  expected_modification_time_,
-                                  &file_stream_, &content_length_);
-  bytes_remaining_ = GetContentLength();
-  return result;
-}
-
-uint64 UploadFileElementReaderSync::GetContentLength() const {
-  return content_length_;
-}
-
-uint64 UploadFileElementReaderSync::BytesRemaining() const {
-  return bytes_remaining_;
-}
-
-int UploadFileElementReaderSync::Read(IOBuffer* buf,
-                                      int buf_length,
-                                      const CompletionCallback& callback) {
-  const int result = ReadInternal(buf, buf_length, BytesRemaining(),
-                                  file_stream_.get());
-  if (result > 0) {
-    DCHECK_GE(bytes_remaining_, static_cast<uint64>(result));
-    bytes_remaining_ -= result;
-  }
-  return result;
-}
-
 }  // namespace net