Create Desktop to iOS Promotion skeleton.

chrome/browser/ui/desktop_ios_promotion/desktop_ios_promotion_util.h

+// Copyright 2017 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_DESKTOP_IOS_PROMOTION_DESKTOP_IOS_PROMOTION_UTIL_H_
+#define CHROME_BROWSER_UI_DESKTOP_IOS_PROMOTION_DESKTOP_IOS_PROMOTION_UTIL_H_
+
+namespace desktop_ios_promotion {
+
+// Represents the reason that the Desktop to iOS promotion was dismissed for.
+enum class PromotionDismissalReason {
+  FOCUS_LOST = 0,
+  TAB_SWITCHED,
+  NO_THANKS,
+  CLOSE_BUTTON,
+  SEND_SMS,
+  LEARN_MORE_CLICKED,
+};
+
+// The place where the promotion appeared.
+enum class PromotionEntryPoint {
+  SAVE_PASSWORD_BUBBLE = 0,
+  BOOKMARKS_BUBBLE,
+  BOOKMARKS_LINK,
+  HISTORY_PAGE
+};
+
+bool IsEligibleForIOSPromotion();
+
+}  // namespace desktop_ios_promotion
+
+#endif  // CHROME_BROWSER_UI_DESKTOP_IOS_PROMOTION_DESKTOP_IOS_PROMOTION_UTIL_H_