Fix the SPDY histograms to be more accurate.  Prior to this change, we recorded histograms for the FieldTrial bucket simply if NPN were negotiated. However, since we rolled the version change of SPDY, it is possible to negotiate via NPN to HTTP, even though we were in the SPDY case.
Fix the SPDY histograms to be more accurate.  Prior to this change, we
recorded histograms for the FieldTrial bucket simply if NPN were negotiated.
However, since we rolled the version change of SPDY, it is possible to
negotiate via NPN to HTTP, even though we were in the SPDY case.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/3204005

git-svn-id: http://src.chromium.org/svn/trunk/src@57628 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 4074a2590fe783e2496cf51481faf2e0bd763657
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser