Previously, it was set to 1 sec and caused to a lot of erroneously
closed http connections if the downloading speed goes below 1MiB/s.
Setting it to 10 secs will allow to prevent the connection expiration
when the momentary network bandwidth is not enough.
Related-Bug: #1438265
Change-Id: I2f8d8f9e2f9ed5ab445a10a91efe80cbe8e04295
a70f4a8cb4