Problem:

In download service, call DownloadDriver::Resume will restart the download from beginning if,

1. the download doesn't support range request.
AND
2. Server has timed out and close the connection.

We should revisit our retry logic to see if we waste too much user data on non resumable downloads.

Details are still need to be discussed. Something we can think of are:
1. Do we want to keep retrying on non resumable downloads?
2. Is there any scenario that we don't want to pause non resumable downloads since it's highly possible to restart from beginning, like user navigation or battery change events.
 

Problem:

In download service, call DownloadDriver::Resume will restart the download from beginning if,

1. the download doesn't support range request.
AND
2. Server has timed out and close the connection.

We should revisit our retry logic to see if we waste too much user data on non resumable downloads.

Details are still need to be discussed. Something we can think of are:

1. Do we want to keep retrying on non resumable downloads?
2. Is there any scenario that we don't want to pause non resumable downloads since it's highly possible to restart from beginning, like user navigation or battery change events.