renderer: implement multiple permission requesting

content/browser/permissions/permission_pending_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_request.h"
+
+#include "base/callback.h"
+#include "content/public/browser/permission_manager.h"
+#include "content/public/browser/permission_type.h"
+
+namespace content {
+
+PermissionPendingRequest::PermissionPendingRequest(
+    PermissionRequestCallback callback,
+    int request_count) :
+    callback_(callback),
+    request_count_(request_count) {
+}
+
+PermissionPendingRequest::~PermissionPendingRequest() {
+  if (!callback_.is_null()) {
+    mojo::Array<PermissionStatus> statuses =
+        mojo::Array<PermissionStatus>::New(request_count_);
+    for (int i = 0; i < request_count_; ++i)
+      statuses[i] = PERMISSION_STATUS_ASK;

[mlamouri (slow - plz ping), 2015/08/21 10:24:40]

DENIED is usually what we do as default value.

[Lalit Maganti, 2015/08/21 12:56:00]

I just followed what was previously in permission_service_impl - there the
previous way was to do ASK. I can change it to DENITED if there was no motive
behind ASK

+    callback_.Run(statuses.Pass());
+  }
+}
+
+} // namespace content