Merge 114608, 115692 to 963 (M17) branch.

chrome/browser/ui/webui/sync_promo_trial.h

-// Copyright (c) 2011 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.
-
-#ifndef CHROME_BROWSER_UI_WEBUI_SYNC_PROMO_TRIAL_H_
-#define CHROME_BROWSER_UI_WEBUI_SYNC_PROMO_TRIAL_H_
-
-#include "base/basictypes.h"
-
-// These helpers manage the Sync Promo field trial.
-//
-// The sync promo experiment involves changing the message body in the sign in
-// promo (see SyncPromoHandler) to see if that has any effect on sign in.
-namespace sync_promo_trial {
-  enum Group {
-    // "Get your bookmarks, history, and settings on all your devices."
-    // This is also the default message group.
-    PROMO_MSG_A = 0,
-
-    // "Back up your bookmarks, history, and settings to the web."
-    PROMO_MSG_B,
-
-    // "Sync your personalized browser features between all your devices."
-    PROMO_MSG_C,
-
-    // "You'll be automatically signed into to your favorite Google services."
-    PROMO_MSG_D,
-
-    // Bounding max value needed for UMA histogram macro.
-    PROMO_MSG_MAX,
-  };
-
-  // Activate the field trial. Before this call, all calls to GetGroup will
-  // return PROMO_MSG_A. *** MUST NOT BE CALLED MORE THAN ONCE. ***
-  void Activate();
-
-  // Returns true iff the experiment has been set up and is active. If this
-  // is false, the caller should not record stats for this experiment.
-  bool IsExperimentActive();
-
-  // Return the field trial group this client belongs to.
-  Group GetGroup();
-
-  // Return the resource ID for the Sync Promo message body associated with this
-  // client.
-  int GetMessageBodyResID();
-
-  // Record the appropriate UMA stat for when a user sees the sync promo
-  // message.
-  void RecordUserSawMessage();
-
-  // Record the appropriate UMA stat for when a user successfully signs in to
-  // GAIA.
-  void RecordUserSignedIn();
-}
-
-#endif  // CHROME_BROWSER_UI_WEBUI_SYNC_PROMO_TRIAL_H_