Implement the file chooser as a new resource "host"

content/renderer/pepper/content_renderer_pepper_host_factory.cc

+// Copyright (c) 2012 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/renderer/pepper/content_renderer_pepper_host_factory.h"
+
+#include "content/renderer/pepper/pepper_file_chooser_host.h"
+#include "ppapi/proxy/ppapi_messages.h"
+
+using ppapi::host::ResourceHost;
+
+namespace content {
+
+ContentRendererPepperHostFactory::ContentRendererPepperHostFactory(
+    RenderViewImpl* render_view)
+    : render_view_(render_view) {
+}
+
+ContentRendererPepperHostFactory::~ContentRendererPepperHostFactory() {
+}
+
+scoped_ptr<ResourceHost>
+ContentRendererPepperHostFactory::CreateMessageReceived(
+    ppapi::host::PpapiHost* host,
+    const ppapi::proxy::ResourceMessageCallParams& params,
+    PP_Instance instance,
+    const IPC::Message& message) {
+  switch (message.type()) {
+    case PpapiHostMsg_FileChooser_Create::ID:
+      return scoped_ptr<ResourceHost>(new PepperFileChooserHost(
+          host, instance, params.pp_resource(), render_view_));
+  }
+  return scoped_ptr<ResourceHost>();
+}
+
+}  // namespace content