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

chrome/common/render_messages.h

Index: chrome/common/render_messages.h
diff --git a/chrome/common/render_messages.h b/chrome/common/render_messages.h
index 41f6110ad24220d8f6de74bee92012a998f64807..e1f29dedb52da8471db3518b846666008812a632 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -590,6 +590,10 @@ 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)