Connect PPAPI IPC channels for non-SFI mode.

ppapi/proxy/plugin_main_irt.h

+// 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.
+

[Mark Seaborn, 2014/02/15 03:00:52]

I see this is partly duplicating the contents of
ppapi/native_client/src/shared/ppapi_proxy/ppruntime.h.

To make this less confusing, can you also remove the declaration of
PpapiPluginRegisterThreadCreator() from
ppapi/native_client/src/shared/ppapi_proxy/ppruntime.h, please?

[The confusion arises because both user code and the PPAPI proxy have a function
called "PpapiPluginMain()".  This is left over from 2011 when the proxy could be
linked into user nexes.  However, the two *could* now use different names.]

[hidehiko, 2014/02/19 13:05:02]

Done.

FYI: I guess we can remove the ppruntime.h file (as irt_ppapi.c has been moved
to ppapi/proxy/...), but it needs to change some more files which are
conceptually unrelated to this work. So, I think it should be addressed
separately?

+#ifndef PPAPI_PROXY_PLUGIN_MAIN_IRT_H_
+#define PPAPI_PROXY_PLUGIN_MAIN_IRT_H_
+
+#include "ppapi/nacl_irt/irt_ppapi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// The entry point for the main thread of the PPAPI plugin process.
+int PpapiPluginMain(void);
+
+void PpapiPluginRegisterThreadCreator(
+    const struct PP_ThreadFunctions* new_funcs);
+
+// Overwrites the IPC channels for the browser and the renderer by the given
+// FD #s. This will be used for non-SFI mode. Must be called before
+// PpapiPluginMain is called.
+void SetIPCFileDescriptors(int browser_ipc_fd, int renderer_ipc_fd);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // PPAPI_PROXY_PLUGIN_MAIN_IRT_H_