PaymentHandler: Implement requestPermission().

chrome/browser/payments/payment_handler_permission_infobar_delegate.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/payments/payment_handler_permission_infobar_delegate.h"
+
+#include "chrome/browser/android/android_theme_resources.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/strings/grit/components_strings.h"
+
+PaymentHandlerPermissionInfoBarDelegate::
+    PaymentHandlerPermissionInfoBarDelegate(
+        const GURL& requesting_frame,
+        bool user_gesture,
+        Profile* profile,
+        const PermissionSetCallback& callback)
+    : PermissionInfoBarDelegate(requesting_frame,
+                                CONTENT_SETTINGS_TYPE_PAYMENT_HANDLER,
+                                user_gesture,
+                                profile,
+                                callback) {}
+
+PaymentHandlerPermissionInfoBarDelegate::
+    ~PaymentHandlerPermissionInfoBarDelegate() {}
+
+infobars::InfoBarDelegate::InfoBarIdentifier
+PaymentHandlerPermissionInfoBarDelegate::GetIdentifier() const {
+  return PAYMENT_HANDLER_INFOBAR_DELEGATE_ANDROID;
+}
+
+int PaymentHandlerPermissionInfoBarDelegate::GetIconId() const {
+  return IDR_ANDROID_INFOBAR_PAYMENT_HANDLER;

[please use gerrit instead, 2017/06/20 13:28:08]

This file does not seem to be Android-specific. Does not seem right to use
Android-specific constants.

[zino, 2017/06/22 17:26:37]

This should be Android-specific. I moved this file and its header file into
android directory.
Thanks!

+}
+
+int PaymentHandlerPermissionInfoBarDelegate::GetMessageResourceId() const {
+  return IDS_PAYMENTS_PAYMENT_HANDLER_REQUEST_PERMISSION;
+}