Reland 132134 with memory fix - Use LocalFileReader in FileSystemURLRequestJob

webkit/fileapi/file_system_url_request_job.h

Index: webkit/fileapi/file_system_url_request_job.h
diff --git a/webkit/fileapi/file_system_url_request_job.h b/webkit/fileapi/file_system_url_request_job.h
index 4f968e3a81bba2e851bb5494018f39a3ee470135..f0f9a183c01e590bdc4886f3a1233ee06d9c8ec7 100644
--- a/webkit/fileapi/file_system_url_request_job.h
+++ b/webkit/fileapi/file_system_url_request_job.h
@@ -19,11 +19,8 @@
 class GURL;
 class FilePath;
 
-namespace net {
-class FileStream;
-}
-
 namespace webkit_blob {
+class LocalFileReader;
 class ShareableFileReference;
 }
 
@@ -73,7 +70,7 @@ class FileSystemURLRequestJob : public net::URLRequestJob {
   FileSystemContext* file_system_context_;
   scoped_refptr<base::MessageLoopProxy> file_thread_proxy_;
   base::WeakPtrFactory<FileSystemURLRequestJob> weak_factory_;
-  scoped_ptr<net::FileStream> stream_;
+  scoped_ptr<webkit_blob::LocalFileReader> reader_;
   scoped_refptr<webkit_blob::ShareableFileReference> snapshot_ref_;
   bool is_directory_;
   scoped_ptr<net::HttpResponseInfo> response_info_;