Create Desktop to iOS Promotion skeleton.

chrome/browser/ui/desktop_ios_promotion/desktop_ios_promotion_util.cc

+// 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.
+
+#include "chrome/browser/ui/desktop_ios_promotion/desktop_ios_promotion_util.h"
+#include "chrome/grit/generated_resources.h"
+
+namespace desktop_ios_promotion {
+
+bool IsEligibleForIOSPromotion() {
+  return false;
+}
+
+base::string16 GetPromoBubbleText(
+    desktop_ios_promotion::PromotionEntryPoint entry_point) {
+  if (entry_point ==
+      desktop_ios_promotion::PromotionEntryPoint::SAVE_PASSWORD_BUBBLE) {
+    return l10n_util::GetStringUTF16(
+        IDS_PASSWORD_MANAGER_DESKTOP_TO_IOS_PROMO_TEXT);
+  }
+  return base::string16();
+}
+
+}  // namespace desktop_ios_promotion