Adds support for media permission request handling on <appview> tag.

extensions/shell/browser/shell_app_view_guest_delegate.cc

+// Copyright 2014 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 "extensions/shell/browser/shell_app_view_guest_delegate.h"
+
+#include "extensions/shell/browser/shell_app_delegate.h"
+
+namespace extensions {
+
+ShellAppViewGuestDelegate::ShellAppViewGuestDelegate() {
+}
+
+ShellAppViewGuestDelegate::~ShellAppViewGuestDelegate() {
+}
+
+bool ShellAppViewGuestDelegate::HandleContextMenu(
+    content::WebContents* web_contents,
+    const content::ContextMenuParams& params) {
+  return false;
+}
+
+AppDelegate* ShellAppViewGuestDelegate::CreateAppDelegate() {
+  return new ShellAppDelegate();
+}
+
+}  // namespace extensions