Update To 11.40.268.0

[platform/framework/web/crosswalk.git] / src / chrome / browser / chrome_browser_field_trials_desktop.cc

diff --git a/src/chrome/browser/chrome_browser_field_trials_desktop.cc b/src/chrome/browser/chrome_browser_field_trials_desktop.cc
index ce62911..be94eec 100644 (file)
--- a/src/chrome/browser/chrome_browser_field_trials_desktop.cc
+++ b/src/chrome/browser/chrome_browser_field_trials_desktop.cc
@@ -7,7 +7,6 @@
 #include <string>
 
 #include "base/command_line.h"
-#include "base/environment.h"
 #include "base/metrics/field_trial.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_util.h"
@@ -18,10 +17,8 @@
 #include "chrome/browser/safe_browsing/safe_browsing_blocking_page.h"
 #include "chrome/browser/ui/app_list/app_list_util.h"
 #include "chrome/browser/ui/sync/one_click_signin_helper.h"
-#include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
-#include "chrome/common/pref_names.h"
 #include "chrome/common/variations/variations_util.h"
 #include "content/public/common/content_constants.h"
 #include "net/spdy/spdy_session.h"
@@ -66,50 +63,6 @@ void DisableShowProfileSwitcherTrialIfNecessary() {
     trial->Disable();
 }
 
-void SetupPreReadFieldTrial() {
-  // The chrome executable will have set (or not) an environment variable with
-  // the group name into which this client belongs.
-  std::string group;
-  scoped_ptr<base::Environment> env(base::Environment::Create());
-  if (!env->GetVar(chrome::kPreReadEnvironmentVariable, &group) ||
-      group.empty()) {
-    return;
-  }
-
-  // Initialize the field trial. We declare all of the groups here (so that
-  // the dashboard creation tools can find them) but force the probability
-  // of being assigned to the group already chosen by the executable, if any,
-  // to 100%.
-  scoped_refptr<base::FieldTrial> trial(
-      base::FieldTrialList::FactoryGetFieldTrial(
-          "BrowserPreReadExperiment", 100, "100-pct-default",
-          2014, 7, 1, base::FieldTrial::SESSION_RANDOMIZED, NULL));
-  trial->AppendGroup("100-pct-control", group == "100-pct-control" ? 100 : 0);
-  trial->AppendGroup("95-pct", group == "95-pct" ? 100 : 0);
-  trial->AppendGroup("90-pct", group == "90-pct" ? 100 : 0);
-  trial->AppendGroup("85-pct", group == "85-pct" ? 100 : 0);
-  trial->AppendGroup("80-pct", group == "80-pct" ? 100 : 0);
-  trial->AppendGroup("75-pct", group == "75-pct" ? 100 : 0);
-  trial->AppendGroup("70-pct", group == "70-pct" ? 100 : 0);
-  trial->AppendGroup("65-pct", group == "65-pct" ? 100 : 0);
-  trial->AppendGroup("60-pct", group == "60-pct" ? 100 : 0);
-  trial->AppendGroup("55-pct", group == "55-pct" ? 100 : 0);
-  trial->AppendGroup("50-pct", group == "50-pct" ? 100 : 0);
-  trial->AppendGroup("45-pct", group == "45-pct" ? 100 : 0);
-  trial->AppendGroup("40-pct", group == "40-pct" ? 100 : 0);
-  trial->AppendGroup("35-pct", group == "35-pct" ? 100 : 0);
-  trial->AppendGroup("30-pct", group == "30-pct" ? 100 : 0);
-  trial->AppendGroup("25-pct", group == "25-pct" ? 100 : 0);
-  trial->AppendGroup("20-pct", group == "20-pct" ? 100 : 0);
-  trial->AppendGroup("15-pct", group == "15-pct" ? 100 : 0);
-  trial->AppendGroup("10-pct", group == "10-pct" ? 100 : 0);
-  trial->AppendGroup("5-pct", group == "5-pct" ? 100 : 0);
-  trial->AppendGroup("0-pct", group == "0-pct" ? 100 : 0);
-
-  // We have to call group in order to mark the experiment as active.
-  trial->group();
-}
-
 }  // namespace
 
 void SetupDesktopFieldTrials(const CommandLine& parsed_command_line,
@@ -119,7 +72,6 @@ void SetupDesktopFieldTrials(const CommandLine& parsed_command_line,
   SetupInfiniteCacheFieldTrial();
   DisableShowProfileSwitcherTrialIfNecessary();
   SetupShowAppLauncherPromoFieldTrial(local_state);
-  SetupPreReadFieldTrial();
 }
 
 }  // namespace chrome