Add an IPC for PNaCl to check if the session is incognito, before deciding

ppapi/api/private/finish_writing_these/ppb_nacl_private.idl

 /* 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.
  */
 
 /* This file contains NaCl private interfaces. */
 
 #include "ppapi/c/private/pp_file_handle.h"
 
 /* PPB_NaCl_Private */
-interface PPB_NaCl_Private_0_7 {
+interface PPB_NaCl_Private_0_8 {
   /* This function launches NaCl's sel_ldr process.  On success, the function
    * returns true, otherwise it returns false.  When it returns true, it will
    * write |socket_count| nacl::Handles to imc_handles.
    */
-  bool LaunchSelLdr([in] PP_Instance instance,
-                    [in] str_t alleged_url,
-                    [in] int32_t socket_count,
-                    [out] mem_t imc_handles);
+  PP_Bool LaunchSelLdr([in] PP_Instance instance,
+                       [in] str_t alleged_url,
+                       [in] int32_t socket_count,
+                       [out] mem_t imc_handles);
 
   /* This function starts the PPAPI proxy so the nexe can communicate with the
    * browser's renderer process.
    */
-  bool StartPpapiProxy([in] PP_Instance instance);
+  PP_Bool StartPpapiProxy([in] PP_Instance instance);
 
   /* On POSIX systems, this function returns the file descriptor of
    * /dev/urandom.  On non-POSIX systems, this function returns 0.
    */
   int32_t UrandomFD();
 
   /* Whether the Pepper 3D interfaces should be disabled in the NaCl PPAPI
    * proxy. This is so paranoid admins can effectively prevent untrusted shader
    * code to be processed by the graphics stack.
    */
   bool Are3DInterfacesDisabled();
 
   /* Returns a read-only file descriptor of a file rooted in the Pnacl
    * component directory, or -1 on error.
    * Do we want this to take a completion callback and be async, or
    * could we make this happen on another thread?
    */
   PP_FileHandle GetReadonlyPnaclFd([in] str_t filename);
 
   /* This creates a temporary file that will be deleted by the time
    * the last handle is closed (or earlier on POSIX systems), and
    * returns a posix handle to that temporary file.
    */
   PP_FileHandle CreateTemporaryFile([in] PP_Instance instance);
+
+  /* Return true if we are off the record.
+   */
+  PP_Bool IsOffTheRecord([in] PP_Instance instance);
 };