renderer: implement multiple permission requesting

content/browser/permissions/permission_pending_multiple_request.cc

+// Copyright 2015 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 "content/browser/permissions/permission_pending_multiple_request.h"
+
+#include "base/callback.h"
+#include "content/public/browser/permission_manager.h"
+#include "content/public/browser/permission_type.h"
+
+namespace content {
+
+PermissionPendingMultipleRequest::PermissionPendingMultipleRequest(
+    PermissionsStatusCallback callback,
+    int request_count) :
+    callback(callback),
+    request_count(request_count) {
+}
+
+PermissionPendingMultipleRequest::~PermissionPendingMultipleRequest() {
+  if (!callback.is_null()) {
+    mojo::Array<PermissionStatus> status =
+        mojo::Array<PermissionStatus>::New(request_count);
+    for (int i = 0; i < request_count; i++) {
+      status[i] = PERMISSION_STATUS_ASK;
+    }
+    callback.Run(status.Pass());
+  }
+}
+
+void PermissionPendingMultipleRequest::Cancel(
+    PermissionManager* permission_manager,
+    RenderFrameHost* context,
+    int request_id) {
+  permission_manager->CancelPermissionsRequest(context, request_id);
+}
+
+} // namespace content