Add a new histogram: Net.QuicSession.OutOfOrderGapReceived

Add a new histogram: Net.QuicSession.OutOfOrderGapReceived

The number of missing packets between the current received packet and the
previously largest received packet sequence number, when the current
received packet had a lower sequence number than the previously received
packet sequence number.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=221955

[jar (doing other things), 2013-09-08 14:41:23]

lgtm

This metric will me interesting to understand, especially as we fix the code
that may induce out-of-order packet sequence number transmission.

[commit-bot: I haz the power, 2013-09-08 14:41:29]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rch@chromium.org/23451015/1

[commit-bot: I haz the power, 2013-09-08 15:02:21]

Sorry for I got bad news for ya.
Compile failed with a clobber build on android_dbg.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=android_db...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2013-09-08 15:42:01]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rch@chromium.org/23451015/30001

[commit-bot: I haz the power, 2013-09-08 23:34:02]

Change committed as 221955