Revert 86978 - Fix FileWriterDelegate's usage tracking behavior

- allowed_growth can be negative if the current usage is larger than the quota; in that case we shouldn't crash (there was a DCHECK that is checking it)
- fixed 'delta' size in update notification for overwriting cases
- now it respects 'unlimitedStorage' settings

BUG=74841
TEST=FileWriterDelegate.WriteWithQuotaAndOffset

Review URL: http://codereview.chromium.org/7067021

TBR=kinuko@chromium.org
Review URL: http://codereview.chromium.org/6962037

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86981 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3 insertions, 2 deletions

diff --git a/webkit/fileapi/file_writer_delegate.h b/webkit/fileapi/file_writer_delegate.h
index 6d94e6e..cf59e5a 100644
--- a/webkit/fileapi/file_writer_delegate.h
+++ b/webkit/fileapi/file_writer_delegate.h
@@ -65,14 +65,15 @@ class FileWriterDelegate : public net::URLRequest::Delegate {
 
   FileSystemOperation* file_system_operation_;
   base::PlatformFile file_;
-  int64 size_;
+  base::PlatformFileInfo file_info_;
   int64 offset_;
   scoped_refptr<base::MessageLoopProxy> proxy_;
   base::Time last_progress_event_time_;
-  int bytes_written_backlog_;
+  int bytes_read_backlog_;
   int bytes_written_;
   int bytes_read_;
   int64 total_bytes_written_;
+  int64 allowed_bytes_growth_;
   int64 allowed_bytes_to_write_;
   scoped_refptr<net::IOBufferWithSize> io_buffer_;
   scoped_ptr<net::FileStream> file_stream_;