Pass ID of the calling extension to the native messaging host.

chrome/browser/extensions/api/messaging/native_process_launcher.cc

Index: chrome/browser/extensions/api/messaging/native_process_launcher.cc
diff --git a/chrome/browser/extensions/api/messaging/native_process_launcher.cc b/chrome/browser/extensions/api/messaging/native_process_launcher.cc
index ee53ec7c07e6d1e82c56a6853dd2a130d8ed1a8b..2fe660168aebe8ffbea7fb75ffade4395a9e1614 100644
--- a/chrome/browser/extensions/api/messaging/native_process_launcher.cc
+++ b/chrome/browser/extensions/api/messaging/native_process_launcher.cc
@@ -160,10 +160,13 @@ void NativeProcessLauncherImpl::Core::DoLaunchOnThreadPool(
     return;
   }
 
+  CommandLine command_line(manifest->path());
+  command_line.AppendArg(origin.spec());
+
   base::PlatformFile read_file;
   base::PlatformFile write_file;
   bool result = NativeProcessLauncher::LaunchNativeProcess(
-      manifest->path(), &read_file, &write_file);
+      command_line, &read_file, &write_file);
 
   content::BrowserThread::PostTask(
       content::BrowserThread::IO, FROM_HERE,