Public Sessions - prompt the user for pageCapture requests

chrome/browser/chromeos/extensions/public_session_permission_helper.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/chromeos/extensions/public_session_permission_helper.h"
+
+#include "chrome/browser/chromeos/extensions/public_session_permission_helper_impl.h"
+#include "content/public/browser/browser_thread.h"
+#include "extensions/common/extension.h"
+
+namespace extensions {
+
+// static
+PublicSessionPermissionHelper& PublicSessionPermissionHelper::Instance() {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+  CR_DEFINE_STATIC_LOCAL(PublicSessionPermissionHelper, instance, ());
+  return instance;
+}
+
+void PublicSessionPermissionHelper::HandlePermissionRequest(
+    const Extension* extension,
+    PermissionHelperSet requested_permissions,
+    content::WebContents* web_contents,
+    const base::Closure& success_callback,
+    const base::Closure& failure_callback) {
+  CHECK(extension);

[Devlin, 2017/01/25 16:00:32]

I know most places pass a const Extension*, but in places we know it's non-null,
we may as well just pass a const & and have the compiler enforce this
(optionally (D)CHECKing at the pass site).

[Ivan Šandrk, 2017/01/26 18:53:22]

Good suggestion. Done.

+  impl_[extension->id()].HandlePermissionRequest(
+      extension,
+      requested_permissions,
+      web_contents,
+      success_callback,
+      failure_callback);
+}
+
+PermissionState PublicSessionPermissionHelper::GetUserChoice(
+    ExtensionId extension_id, APIPermission::ID permission_id) {
+  return impl_[extension_id].GetUserChoice(permission_id);
+}
+
+PublicSessionPermissionHelper::PublicSessionPermissionHelper() {}
+
+PublicSessionPermissionHelper::~PublicSessionPermissionHelper() {}
+
+}  // namespace extensions