net: Move file operation code from UploadData to UploadDataStream

content/browser/renderer_host/resource_dispatcher_host_impl.cc

Index: content/browser/renderer_host/resource_dispatcher_host_impl.cc
diff --git a/content/browser/renderer_host/resource_dispatcher_host_impl.cc b/content/browser/renderer_host/resource_dispatcher_host_impl.cc
index 205993824612efaa6fe85cfdb8091d4e62305292..bf78554b7db0f3f491820875e6982a2ee5b4fa00 100644
--- a/content/browser/renderer_host/resource_dispatcher_host_impl.cc
+++ b/content/browser/renderer_host/resource_dispatcher_host_impl.cc
@@ -69,7 +69,7 @@
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "net/base/request_priority.h"
 #include "net/base/ssl_cert_request_info.h"
-#include "net/base/upload_data.h"
+#include "net/base/upload_data_stream.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/http/http_cache.h"
 #include "net/http/http_response_headers.h"
@@ -965,7 +965,9 @@ void ResourceDispatcherHostImpl::BeginRequest(
             GetBlobStorageControllerForResourceContext(resource_context)));
     // This results in performing file IO. crbug.com/112607.
     base::ThreadRestrictions::ScopedAllowIO allow_io;
-    upload_size = request->get_upload_mutable()->GetContentLengthSync();
+    net::UploadDataStream upload_stream(request->get_upload_mutable());
+    if (upload_stream.Init() == net::OK)
+      upload_size = upload_stream.size();
   }
 
   bool allow_download = request_data.allow_download &&