Avoid blocking the PNaCl translator processes when chrome NaCl GDB flag is on.

ppapi/native_client/src/trusted/plugin/plugin.h

Index: ppapi/native_client/src/trusted/plugin/plugin.h
diff --git a/ppapi/native_client/src/trusted/plugin/plugin.h b/ppapi/native_client/src/trusted/plugin/plugin.h
index 04b058d9615c45650ca293868c542ab967de096c..3332d39ec6bb495e0901746c4af90dc5260fe4d3 100644
--- a/ppapi/native_client/src/trusted/plugin/plugin.h
+++ b/ppapi/native_client/src/trusted/plugin/plugin.h
@@ -112,7 +112,8 @@ class Plugin : public pp::Instance {
   // Blocks until the helper module signals initialization is done.
   // Does not update nacl_module_origin().
   // Returns NULL or the NaClSubprocess of the new helper NaCl module.
-  NaClSubprocess* LoadHelperNaClModule(nacl::DescWrapper* wrapper,
+  NaClSubprocess* LoadHelperNaClModule(const nacl::string& helper_url,
+                                       nacl::DescWrapper* wrapper,
                                        const Manifest* manifest,
                                        ErrorInfo* error_info);