Enable spdy to 95%, npn only to 5%.

Enable spdy to 95%, npn only to 5%.
BUG=48964
TEST=none

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=56915

[lzheng, 2010-08-20 17:59:44]

Enable spdy to 95%, npn-http to 5%.

The npn-http will help to collect control stats for http (when later alternate
protocol is used) and https.

[mbelshe, 2010-08-20 20:55:42]

lgtm

On Fri, Aug 20, 2010 at 10:59 AM, <lzheng@chromium.org> wrote:

> Reviewers: Mike Belshe,
>
> Message:
> Enable spdy to 95%, npn-http to 5%.
>
> The npn-http will help to collect control stats for http (when later
> alternate
> protocol is used) and https.
>
> Description:
> Enable spdy to 95%, npn only to 5%.
>
> Please review this at http://codereview.chromium.org/3115023/show
>
> SVN Base: svn://chrome-svn/chrome/trunk/src/
>
> Affected files:
>  M     chrome/browser/browser_main.cc
>
>
> Index: chrome/browser/browser_main.cc
> ===================================================================
> --- chrome/browser/browser_main.cc      (revision 56881)
> +++ chrome/browser/browser_main.cc      (working copy)
> @@ -344,15 +344,8 @@
>     const FieldTrial::Probability kSpdyDivisor = 1000;
>     // To enable 100% npn_with_spdy, set npnhttp_probability = 0 and set
>     // npnspdy_probability = FieldTrial::kAllRemainingProbability.
> -    // To collect stats, make sure that FieldTrial are distributed among
> -    // all the three groups:
> -    // npn_with_spdy : 50%, npn_with_http : 25%, default (no npn, no
> spdy): 25%.
> -    // a. npn_with_spdy and default: these are used to collect stats for
> -    //    alternate protocol with spdy vs. no alternate protocol case.
> -    // b. npn_with_spdy and npn_with_http: these are used to collect stats
> for
> -    //    https vs. https over spdy case.
> -    FieldTrial::Probability npnhttp_probability = 250;
> -    FieldTrial::Probability npnspdy_probability = 500;
> +    FieldTrial::Probability npnhttp_probability = 50;
> +    FieldTrial::Probability npnspdy_probability = 950;
>     scoped_refptr<FieldTrial> trial =
>         new FieldTrial("SpdyImpact", kSpdyDivisor);
>     // npn with only http support, no spdy.
>
>
>