Keep NaCl plugins used in app background pages alive when active.

components/nacl/browser/nacl_process_host.cc

Index: components/nacl/browser/nacl_process_host.cc
diff --git a/components/nacl/browser/nacl_process_host.cc b/components/nacl/browser/nacl_process_host.cc
index e44df8983c3ffb3b10462746e3eca25fc0ed93d9..0aeb295745bbe56d40016048e986fc55ac5b79be 100644
--- a/components/nacl/browser/nacl_process_host.cc
+++ b/components/nacl/browser/nacl_process_host.cc
@@ -48,6 +48,7 @@
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_nacl_channel_args.h"
+#include "ppapi/shared_impl/ppapi_switches.h"
 
 #if defined(OS_POSIX)
 #include <fcntl.h>
@@ -798,6 +799,8 @@ void NaClProcessHost::OnPpapiChannelCreated(
         nacl_host_message_filter_->render_process_id(),
         render_view_id_,
         profile_directory_));
+    ppapi_host_->SetOnKeepaliveCallback(
+        nacl::NaClBrowser::GetDelegate()->GetOnKeepaliveCallback());

[yzshen1, 2013/12/13 21:23:15]

nit: this code is in nacl:: namespace right? you could remove the namespace
prefix.

[scheib, 2013/12/14 00:07:41]

Done.

 
     ppapi::PpapiNaClChannelArgs args;
     args.off_the_record = nacl_host_message_filter_->off_the_record();