Enable the spdy A/B test for SxS installations. npn_with_http and npn_with_spdy

will be enabled at 50% of chance.

BUG=45022
TEST=Use command-line flag --chrome-sxs to force the browser as SxS, go to gmail.com,
login/logout, check about:histograms, you should see xx_spdytrial_xxx histograms.

Review URL: http://codereview.chromium.org/2188001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@48404 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 8 insertions, 2 deletions

diff --git a/chrome/installer/util/google_chrome_sxs_distribution.cc b/chrome/installer/util/google_chrome_sxs_distribution.cc
index 19dad79..6807e93 100644
--- a/chrome/installer/util/google_chrome_sxs_distribution.cc
+++ b/chrome/installer/util/google_chrome_sxs_distribution.cc
@@ -11,6 +11,7 @@
 namespace {
 
 const wchar_t kChromeSxSGuid[] = L"{4ea16ac7-fd5a-47c3-875b-dbf4a2008c20}";
+const wchar_t kChannelName[] = L"SxS";
 
 }  // namespace
 
@@ -47,6 +48,10 @@ bool GoogleChromeSxSDistribution::ShouldUseAlternateIcon() {
 }
 
 bool GoogleChromeSxSDistribution::GetChromeChannel(std::wstring* channel) {
-  *channel = L"SxS";
+  *channel = kChannelName;
   return true;
 }
+
+std::wstring GoogleChromeSxSDistribution::ChannelName() {
+  return kChannelName;
+}
diff --git a/chrome/installer/util/google_chrome_sxs_distribution.h b/chrome/installer/util/google_chrome_sxs_distribution.h
index 6503e0a..3062f43 100644
--- a/chrome/installer/util/google_chrome_sxs_distribution.h
+++ b/chrome/installer/util/google_chrome_sxs_distribution.h
@@ -26,7 +26,8 @@ class GoogleChromeSxSDistribution : public GoogleChromeDistribution {
   virtual bool CanSetAsDefault();
   virtual bool ShouldUseAlternateIcon();
   virtual bool GetChromeChannel(std::wstring* channel);
-
+  // returns the channel name for GoogleChromeSxSDistribution
+  static std::wstring ChannelName();
  private:
   friend class BrowserDistribution;