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

chrome/common/render_messages.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.
 
 // Multiply-included file, no traditional include guard.
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 572 matching lines @@
 
 // Sent by the renderer to check if a URL has permission to trigger a clipboard
 // read/write operation from the DOM.
 IPC_SYNC_MESSAGE_ROUTED1_1(ChromeViewHostMsg_CanTriggerClipboardRead,
                            GURL /* origin */,
                            bool /* allowed */)
 IPC_SYNC_MESSAGE_ROUTED1_1(ChromeViewHostMsg_CanTriggerClipboardWrite,
                            GURL /* origin */,
                            bool /* allowed */)
 
+IPC_SYNC_MESSAGE_CONTROL0_1(ChromeViewHostMsg_IsOffTheRecord,
+                            bool /* is_off_the_record */)
+
+
 // Sent when the renderer was prevented from displaying insecure content in
 // a secure page by a security policy.  The page may appear incomplete.
 IPC_MESSAGE_ROUTED0(ChromeViewHostMsg_DidBlockDisplayingInsecureContent)
 
 // Sent when the renderer was prevented from running insecure content in
 // a secure origin by a security policy.  The page may appear incomplete.
 IPC_MESSAGE_ROUTED0(ChromeViewHostMsg_DidBlockRunningInsecureContent)
 
 // Message sent from renderer to the browser when the element that is focused
 // and currently accepts keyboard input inside the webpage has been touched.
@@ skipping 33 matching lines @@
 // previous SetCookie message to be processed.
 IPC_SYNC_MESSAGE_ROUTED2_1(ChromeViewHostMsg_GetCookies,
                            GURL /* url */,
                            GURL /* first_party_for_cookies */,
                            std::string /* cookies */)
 
 // Provide the browser process with current renderer framerate.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_FPS,
                      int /* routing id */,
                      float /* frames per second */)