SPDY - In CreateStream close the SpdySession if socket is not connected.

Added DCHECK for socket being connected.

Added Net.SpdySession.CreateStreamWithSocketConnected histogram to track
the socket not connected case.

Modified CloseIdleSessions tests to initialize SpdySessionWithScoket.

BUG=232894
R=rch@chromium.org
TEST=net unit tests

Review URL: https://chromiumcodereview.appspot.com/14707005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@197722 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed