net: Change argument of URLRequest::set_upload from UploadData to UploadDataStream

net/base/upload_data_stream.h

Index: net/base/upload_data_stream.h
diff --git a/net/base/upload_data_stream.h b/net/base/upload_data_stream.h
index 24653023d36933604c18b006e72eff0aad707447..769c2d6992fc3fc71940d1a366f8040b410f0521 100644
--- a/net/base/upload_data_stream.h
+++ b/net/base/upload_data_stream.h
@@ -34,6 +34,11 @@ class NET_EXPORT UploadDataStream {
 
   ~UploadDataStream();
 
+  // Creates UploadDataStream with a reader.
+  static UploadDataStream* CreateWithReader(
+      scoped_ptr<UploadElementReader> reader,
+      int64 identifier);
+
   // Initializes the stream. This function must be called before calling any
   // other method. It is not valid to call any method (other than the
   // destructor) if Init() returns a failure. This method can be called multiple