Increase buffer size for XMPP sockets.

Previously 4096 bytes write buffer was used for XMPP socket. Problem is
that ChromeAsyncSocket stops writing when the buffer is full and
talk::XmppClient ignores this error, as result random chunks of data may
be lost. This CL increses buffer size to 64k - same value that's used in
notifier::XmppConnection.
This is essentially a temporary workaround until the problem is fixed
in jingle::ChromeAsyncSocket or talk::XmppClient

BUG=417336

Review URL: https://codereview.chromium.org/608613002

Cr-Commit-Position: refs/heads/master@{#296805}

0 files changed, 0 insertions, 0 deletions