Increase max trace message size to 1024 characters.
Increase max trace message size to 1024 characters.

A recent CL by pbos:
https://code.google.com/p/webrtc/source/detail?r=7518

added long log messages and triggered errors on the DrMemory bot due to
WEBRTC_TRACE. The trace mechanism _should_ truncate the log strings
but something appears to be going awry.

This sweeps the problem under the rug, but given that WEBRTC_TRACE
should die fairly soon, seems to be a reasonable tradeoff.

TEST=passing try on DrMemory.
R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/27849004

Patch from Andrew MacDonald <andrew@webrtc.org>.

git-svn-id: 03ae4fbe531b1eefc9d815f31e49022782c42458@7526 4adac7df-926f-26a2-2b94-8c16560cd09d

Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,PersonifyInc/chromium_webrtc,sippet/webrtc,sippet/webrtc,sippet/webrtc,PersonifyInc/chromium_webrtc,aleonliao/webrtc-trunk,jchavanton/webrtc,aleonliao/webrtc-trunk,Alkalyne/webrtctrunk,krieger-od/webrtc,krieger-od/nwjs_chromium_webrtc,PersonifyInc/chromium_webrtc,krieger-od/nwjs_chromium_webrtc,Alkalyne/webrtctrunk,krieger-od/webrtc,aleonliao/webrtc-trunk,krieger-od/webrtc,jchavanton/webrtc,Alkalyne/webrtctrunk,krieger-od/nwjs_chromium_webrtc,krieger-od/nwjs_chromium_webrtc,krieger-od/webrtc,sippet/webrtc,PersonifyInc/chromium_webrtc,aleonliao/webrtc-trunk,aleonliao/webrtc-trunk,Alkalyne/webrtctrunk,PersonifyInc/chromium_webrtc,Alkalyne/webrtctrunk,krieger-od/webrtc,jchavanton/webrtc,krieger-od/webrtc,Alkalyne/webrtctrunk,PersonifyInc/chromium_webrtc,krieger-od/nwjs_chromium_webrtc,krieger-od/nwjs_chromium_webrtc,jchavanton/webrtc,sippet/webrtc,jchavanton/webrtc,jchavanton/webrtc,aleonliao/webrtc-trunk,sippet/webrtc,jchavanton/webrtc