Pass the nacl start parameters as a struct.

chrome/browser/nacl_host/nacl_process_host.h

Index: chrome/browser/nacl_host/nacl_process_host.h
diff --git a/chrome/browser/nacl_host/nacl_process_host.h b/chrome/browser/nacl_host/nacl_process_host.h
index 2024dadc8f9ed89065ca0ee009a6e62a4b7df8ac..b0f4e72dc12d2bd46c09fd7db156d21ed2689b58 100644
--- a/chrome/browser/nacl_host/nacl_process_host.h
+++ b/chrome/browser/nacl_host/nacl_process_host.h
@@ -84,6 +84,10 @@ class NaClProcessHost : public content::BrowserChildProcessHostDelegate {
 
   void IrtReady();
 
+  // Fills in the startup parameters to the given struct, returning true on
+  // success.
+  bool MakeStartParams(nacl::NaClStartParams* params);
+
   // Sends the start command with file handles to an opened NaCl process.
   // Returns false on failure.
   bool SendStart();