Convert the async device ID getter to a chrome resource host

chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h

+// 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.
+
+#ifndef CHROME_BROWSER_RENDERER_HOST_PEPPER_CHROME_BROWSER_PEPPER_HOST_FACTORY_H_
+#define CHROME_BROWSER_RENDERER_HOST_PEPPER_CHROME_BROWSER_PEPPER_HOST_FACTORY_H_
+
+#include "base/compiler_specific.h"
+#include "ppapi/host/host_factory.h"
+
+namespace content {
+class BrowserPpapiHost;
+}  // namespace content
+
+namespace chrome {
+
+class ChromeBrowserPepperHostFactory : public ppapi::host::HostFactory {
+ public:
+  // Non-owning pointer to the filter must outlive this class.
+  explicit ChromeBrowserPepperHostFactory(content::BrowserPpapiHost* host);
+  virtual ~ChromeBrowserPepperHostFactory();
+
+  virtual scoped_ptr<ppapi::host::ResourceHost> CreateResourceHost(
+      ppapi::host::PpapiHost* host,
+      const ppapi::proxy::ResourceMessageCallParams& params,
+      PP_Instance instance,
+      const IPC::Message& message) OVERRIDE;
+
+ private:
+  // Non-owning pointer.
+  content::BrowserPpapiHost* host_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeBrowserPepperHostFactory);
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_RENDERER_HOST_PEPPER_CHROME_BROWSER_PEPPER_HOST_FACTORY_H_