Remove experimental sync promo layouts

chrome/browser/ui/webui/sync_promo/sync_promo_trial.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/sync_promo/sync_promo_trial.h"
 
-#include "base/command_line.h"
-#include "base/metrics/field_trial.h"
-#include "base/string_number_conversions.h"
-#include "base/string_util.h"
-#include "chrome/browser/google/google_util.h"
-#include "chrome/browser/metrics/metrics_service.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/webui/sync_promo/sync_promo_ui.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/chrome_version_info.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_ui.h"
-#include "grit/generated_resources.h"
-
-namespace {
-
-const char kLayoutExperimentTrialName[] = "SyncPromoLayoutExperiment";
-
-enum LayoutExperimentType {
-  LAYOUT_EXPERIMENT_DEFAULT = 0,
-  LAYOUT_EXPERIMENT_DEVICES,
-  LAYOUT_EXPERIMENT_VERBOSE,
-  LAYOUT_EXPERIMENT_SIMPLE,
-  LAYOUT_EXPERIMENT_NONE,
-  LAYOUT_EXPERIMENT_DIALOG,
-  LAYOUT_EXPERIMENT_BOUNDARY,
-};
-
-// Flag to make sure sync_promo_trial::Activate() has been called.
-bool sync_promo_trial_initialized;
-
-// Checks if a sync promo layout experiment is active. If it is active then the
-// layout type is return in |type|.
-bool GetActiveLayoutExperiment(LayoutExperimentType* type) {
-  DCHECK(type);
-
-  int version = 0;
-  if (base::StringToInt(CommandLine::ForCurrentProcess()->
-      GetSwitchValueASCII(switches::kSyncPromoVersion), &version)) {
-    switch (version) {
-      case SyncPromoUI::VERSION_DEFAULT:
-        *type = LAYOUT_EXPERIMENT_DEFAULT;
-        return true;
-      case SyncPromoUI::VERSION_DEVICES:
-        *type = LAYOUT_EXPERIMENT_DEVICES;
-        return true;
-      case SyncPromoUI::VERSION_VERBOSE:
-        *type = LAYOUT_EXPERIMENT_VERBOSE;
-        return true;
-      case SyncPromoUI::VERSION_SIMPLE:
-        *type = LAYOUT_EXPERIMENT_SIMPLE;
-        return true;
-      case SyncPromoUI::VERSION_DIALOG:
-        *type = LAYOUT_EXPERIMENT_DIALOG;
-        return true;
-      default:
-        return false;
-    }
-  }
-
-  if (chrome::VersionInfo::GetChannel() ==
-      chrome::VersionInfo::CHANNEL_STABLE) {
-    std::string brand;
-    if (!google_util::GetBrand(&brand))
-      return false;
-
-    if (brand == "GGRG" || brand == "CHCG")
-      *type = LAYOUT_EXPERIMENT_DEFAULT;
-    else if (brand == "GGRH" || brand == "CHCH")
-      *type = LAYOUT_EXPERIMENT_DEVICES;
-    else if (brand == "GGRI" || brand == "CHCI")
-      *type = LAYOUT_EXPERIMENT_VERBOSE;
-    else if (brand == "GGRJ" || brand == "CHCJ")
-      *type = LAYOUT_EXPERIMENT_SIMPLE;
-    else if (brand == "GGRL" || brand == "CHCL")
-      *type = LAYOUT_EXPERIMENT_NONE;
-    else if (brand == "GGRK" || brand == "CHCK")
-      *type = LAYOUT_EXPERIMENT_DIALOG;
-    else
-      return false;
-  } else {
-    if (!base::FieldTrialList::TrialExists(kLayoutExperimentTrialName))
-      return false;
-    int value = base::FieldTrialList::FindValue(kLayoutExperimentTrialName) -
-        base::FieldTrial::kDefaultGroupNumber;
-    *type = static_cast<LayoutExperimentType>(value);
-  }
-
-  return true;
-}
-
-} // namespace
-
 namespace sync_promo_trial {
 
-void Activate() {
-  DCHECK(!sync_promo_trial_initialized);
-  sync_promo_trial_initialized = true;
-
-  // For stable builds we'll use brand codes to enroll uesrs into experiments.
-  // For dev and beta we don't have brand codes so we randomly enroll users.
-  if (chrome::VersionInfo::GetChannel() !=
-      chrome::VersionInfo::CHANNEL_STABLE) {
-#if defined(GOOGLE_CHROME_BUILD)
-    // Create a field trial that expires in August 8, 2012. It contains 6 groups
-    // with each group having an equal chance of enrollment.
-    scoped_refptr<base::FieldTrial> trial(new base::FieldTrial(
-        kLayoutExperimentTrialName, 6, "default", 2012, 8, 1));
-    if (base::FieldTrialList::IsOneTimeRandomizationEnabled())
-      trial->UseOneTimeRandomization();
-    trial->AppendGroup("", 1);
-    trial->AppendGroup("", 1);
-    trial->AppendGroup("", 1);
-    trial->AppendGroup("", 1);
-    trial->AppendGroup("", 1);
-#endif
-  }
-}
-
-StartupOverride GetStartupOverrideForCurrentTrial() {
-  DCHECK(sync_promo_trial_initialized);
-
-  LayoutExperimentType type;
-  if (GetActiveLayoutExperiment(&type)) {
-    return type == LAYOUT_EXPERIMENT_NONE ? STARTUP_OVERRIDE_HIDE :
-                                            STARTUP_OVERRIDE_SHOW;
-  }
-  return STARTUP_OVERRIDE_NONE;
-}
-
 void RecordUserShownPromo(content::WebUI* web_ui) {
-  DCHECK(sync_promo_trial_initialized);
-
-  LayoutExperimentType type;
-  if (GetActiveLayoutExperiment(&type)) {
-    bool is_at_startup = SyncPromoUI::GetIsLaunchPageForSyncPromoURL(
-        web_ui->GetWebContents()->GetURL());
-    if (is_at_startup) {
-      DCHECK(SyncPromoUI::HasShownPromoAtStartup(Profile::FromWebUI(web_ui)));
-      UMA_HISTOGRAM_ENUMERATION("SyncPromo.ShownPromoWithLayoutExpAtStartup",
-                                type, LAYOUT_EXPERIMENT_BOUNDARY);
-    } else {
-      UMA_HISTOGRAM_ENUMERATION("SyncPromo.ShownPromoWithLayoutExp",
-                                type, LAYOUT_EXPERIMENT_BOUNDARY);
-    }
-  }
-}
-
-void RecordSyncPromoSuppressedForCurrentTrial() {
-  DCHECK(sync_promo_trial_initialized);
-  LayoutExperimentType type = LAYOUT_EXPERIMENT_DEFAULT;
-  DCHECK(GetActiveLayoutExperiment(&type) && type == LAYOUT_EXPERIMENT_NONE);
-  // Avoid warning about unused variable in release builds.
-  (void)type;
-  UMA_HISTOGRAM_ENUMERATION("SyncPromo.ShownPromoWithLayoutExpAtStartup",
-                            LAYOUT_EXPERIMENT_NONE, LAYOUT_EXPERIMENT_BOUNDARY);
+  // TODO(sail): Add new UMA stats here.
 }
 
 void RecordUserSignedIn(content::WebUI* web_ui) {
-  DCHECK(sync_promo_trial_initialized);
-
-  LayoutExperimentType type;
-  if (GetActiveLayoutExperiment(&type)) {
-    bool is_at_startup = SyncPromoUI::GetIsLaunchPageForSyncPromoURL(
-        web_ui->GetWebContents()->GetURL());
-    if (is_at_startup) {
-      DCHECK(SyncPromoUI::HasShownPromoAtStartup(Profile::FromWebUI(web_ui)));
-      UMA_HISTOGRAM_ENUMERATION("SyncPromo.SignedInWithLayoutExpAtStartup",
-                                type, LAYOUT_EXPERIMENT_BOUNDARY);
-    } else {
-      UMA_HISTOGRAM_ENUMERATION("SyncPromo.SignedInWithLayoutExp",
-                                type, LAYOUT_EXPERIMENT_BOUNDARY);
-    }
-  }
-}
-
-bool GetSyncPromoVersionForCurrentTrial(SyncPromoUI::Version* version) {
-  DCHECK(sync_promo_trial_initialized);
-  DCHECK(version);
-
-  LayoutExperimentType type;
-  if (!GetActiveLayoutExperiment(&type))
-    return false;
-
-  switch (type) {
-    case LAYOUT_EXPERIMENT_DEFAULT:
-      *version = SyncPromoUI::VERSION_DEFAULT;
-      return true;
-    case LAYOUT_EXPERIMENT_DEVICES:
-      *version = SyncPromoUI::VERSION_DEVICES;
-      return true;
-    case LAYOUT_EXPERIMENT_VERBOSE:
-      *version = SyncPromoUI::VERSION_VERBOSE;
-      return true;
-    case LAYOUT_EXPERIMENT_SIMPLE:
-      *version = SyncPromoUI::VERSION_SIMPLE;
-      return true;
-    case LAYOUT_EXPERIMENT_DIALOG:
-      *version = SyncPromoUI::VERSION_DIALOG;
-      return true;
-    default:
-      return false;
-  }
+  // TODO(sail): Add new UMA stats here.
 }
 
 }  // namespace sync_promo_trial