Merge 21982 - Retry requests that has timed out in BufferedDataSource...

Merge 21982 - Retry requests that has timed out in BufferedDataSource

Retries request if the read request is not fulfilled in 5 seconds and at most 3 times. This will handle the case when
a user pause a movie and starts it in a later time when the
connection to the server has already timed out.

TEST=BufferedDataSourceTest.*
BUG=17479
done

Review URL: http://codereview.chromium.org/159382

TBR=hclam@google.com


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=22810