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

chrome/browser/renderer_host/chrome_render_message_filter.cc

Index: chrome/browser/renderer_host/chrome_render_message_filter.cc
diff --git a/chrome/browser/renderer_host/chrome_render_message_filter.cc b/chrome/browser/renderer_host/chrome_render_message_filter.cc
index 671241a03fe490b7f258b20bf9af78f64b69421e..949df3c1dcefb685a9d86212cf39efb4be6a1dce 100644
--- a/chrome/browser/renderer_host/chrome_render_message_filter.cc
+++ b/chrome/browser/renderer_host/chrome_render_message_filter.cc
@@ -124,6 +124,8 @@ bool ChromeRenderMessageFilter::OnMessageReceived(const IPC::Message& message,
                         OnCanTriggerClipboardRead)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_CanTriggerClipboardWrite,
                         OnCanTriggerClipboardWrite)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_IsOffTheRecord,
+                        OnIsOffTheRecord)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
@@ -572,3 +574,7 @@ void ChromeRenderMessageFilter::OnSetCookie(const IPC::Message& message,
       render_process_id_, message.routing_id(), url, cookie);
 #endif
 }
+
+void ChromeRenderMessageFilter::OnIsOffTheRecord(bool* is_off_the_record) {
+  *is_off_the_record = off_the_record_;
+}