Remove WSHandshakeStreamCreateHelper::stream()

The stream() method in net::WebSocketHandshakeStreamCreateHelper was
inherently dangerous as it could return a dangling pointer.

Replaced with an Upgrade() method to be used after a successful
handshake, and an OnStreamCreated() method to be used by
DeterministicKeyWebSocketHandshakeStreamCreateHelper for testing.

BUG=
TEST=net_unittests

Review URL: https://codereview.chromium.org/365133002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@281405 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed