Separate NaCl messages from the rest of chrome messages and create a new message filter. This is pa…

chrome/browser/nacl_host/nacl_host_message_filter.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 CHROME_BROWSER_NACL_HOST_NACL_HOST_MESSAGE_FILTER_H_
+#define CHROME_BROWSER_NACL_HOST_NACL_HOST_MESSAGE_FILTER_H_
+
+#include "base/memory/weak_ptr.h"
+#include "content/public/browser/browser_message_filter.h"
+
+class ExtensionInfoMap;
+class GURL;
+class Profile;
+
+namespace nacl {
+struct NaClLaunchParams;
+}
+
+namespace net {
+class HostResolver;
+class URLRequestContextGetter;
+}
+
+// This class filters out incoming Chrome-specific IPC messages for the renderer
+// process on the IPC thread.
+class NaClHostMessageFilter : public content::BrowserMessageFilter {
+ public:
+  NaClHostMessageFilter(int render_process_id,
+                        Profile* profile,
+                        net::URLRequestContextGetter* request_context);
+
+  // content::BrowserMessageFilter methods:
+  virtual bool OnMessageReceived(const IPC::Message& message,
+                                 bool* message_was_ok) OVERRIDE;
+
+  int render_process_id() { return render_process_id_; }
+  bool off_the_record() { return off_the_record_; }
+  net::HostResolver* GetHostResolver();
+
+ private:
+  friend class content::BrowserThread;
+  friend class base::DeleteHelper<NaClHostMessageFilter>;
+
+  virtual ~NaClHostMessageFilter();
+
+#if !defined(DISABLE_NACL)
+  void OnLaunchNaCl(const nacl::NaClLaunchParams& launch_params,
+                    IPC::Message* reply_msg);
+  void OnGetReadonlyPnaclFd(const std::string& filename,
+                            IPC::Message* reply_msg);
+  void OnNaClCreateTemporaryFile(IPC::Message* reply_msg);
+  void OnNaClErrorStatus(int render_view_id, int error_id);
+  void OnOpenNaClExecutable(int render_view_id,
+                            const GURL& file_url,
+                            IPC::Message* reply_msg);
+#endif
+  int render_process_id_;
+
+  // The Profile associated with our renderer process.  This should only be
+  // accessed on the UI thread!
+  Profile* profile_;
+  // Copied from the profile so that it can be read on the IO thread.
+  bool off_the_record_;
+  scoped_refptr<net::URLRequestContextGetter> request_context_;
+  scoped_refptr<ExtensionInfoMap> extension_info_map_;
+
+  base::WeakPtrFactory<NaClHostMessageFilter> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(NaClHostMessageFilter);
+};
+
+#endif  // CHROME_BROWSER_NACL_HOST_NACL_HOST_MESSAGE_FILTER_H_