Rework the logging for sockets/connectjobs.
In particular, make it work better when using backup jobs / late binding (the display was very confused before because of how these asynchronous events would nest).
Also changed the paradigm for how PassiveLogCollector preserves these async associations -- this fixes how it replays the events to net-internals. (Before we would collapse the event streams into the SOURCE_URL_REQUEST which lost some hiearchy.. now I keep the separate streams).
Some of the particular changes to the event streams:
* ConnectJobs now create their own source stream internally.
* Sockets are now bounded by +SOCKET_ALIVE / -SOCKET_ALIVE events (removed the one-off SOCKET_DONE event).
* The socket log streams contains +SOCKET_IN_USE / -SOCKET_IN_USE event blocks to show which URLRequest was controlling it at various points in time (this makes it much easier to understand which read/writes belonged to a particular network transaction when a socket gets re-used).
* ConnectJobs are bounded by +SOCKET_POOL_CONNECT_JOB / - SOCKET_POOL_CONNECT_JOB events.
* ConnectJobs log the net error they failed with.
* Removed the SOCKET_BACKUP_TIMER_EXTENDED event.
Review URL: http://codereview.chromium.org/2363003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@48797 0039d316-1c4b-4281-b951-d872f2087c98
42 files changed
