Allow renderer to create pepper ResourceHosts in the browser

content/browser/renderer_host/pepper/pepper_renderer_connection.h

+// Copyright (c) 2013 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 CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_RENDERER_CONNECTION_H_
+#define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_RENDERER_CONNECTION_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "content/public/browser/browser_message_filter.h"
+#include "ppapi/c/pp_instance.h"
+
+namespace ppapi {
+namespace proxy {
+class ResourceMessageCallParams;
+}
+}
+
+namespace content {
+
+// This class represents a connection from the browser to the renderer for
+// sending/receiving pepper ResourceHost related messages. When the browser
+// and renderer communicate about ResourceHosts, they should pass the plugin
+// process ID to identify which plugin they are talking about.
+class PepperRendererConnection : public BrowserMessageFilter {
+ public:
+  PepperRendererConnection();
+
+  // BrowserMessageFilter overrides.
+  virtual bool OnMessageReceived(const IPC::Message& msg,
+                                 bool* message_was_ok) OVERRIDE;
+
+ private:
+  virtual ~PepperRendererConnection();
+
+  void OnMsgCreateResourceHostFromHost(
+      int child_process_id,
+      const ppapi::proxy::ResourceMessageCallParams& params,
+      PP_Instance instance,
+      const IPC::Message& nested_msg);
+
+  DISALLOW_COPY_AND_ASSIGN(PepperRendererConnection);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_RENDERER_CONNECTION_H_