Create Desktop to iOS Promotion skeleton.

chrome/browser/ui/desktop_ios_promotion/desktop_ios_promotion_controller.cc

Index: chrome/browser/ui/desktop_ios_promotion/desktop_ios_promotion_controller.cc
diff --git a/chrome/browser/ui/desktop_ios_promotion/desktop_ios_promotion_controller.cc b/chrome/browser/ui/desktop_ios_promotion/desktop_ios_promotion_controller.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ed10b2ab02be7b1f49d078caef7c96f7a5be689a
--- /dev/null
+++ b/chrome/browser/ui/desktop_ios_promotion/desktop_ios_promotion_controller.cc
@@ -0,0 +1,17 @@
+// 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_controller.h"
+
+DesktopIOSPromotionController::DesktopIOSPromotionController() {}
+
+DesktopIOSPromotionController::~DesktopIOSPromotionController() {}
+
+void DesktopIOSPromotionController::OnSendSMSClicked() {
+  // TODO(crbug.com/676655): Call the growth api to send sms.
+}
+
+void DesktopIOSPromotionController::OnNoThanksClicked() {
+  // TODO(crbug.com/676655): Handle logging & update sync.
+}