OmahaQueryParams: Tiny comment update

components/omaha_query_params/omaha_query_params.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_OMAHA_QUERY_PARAMS_OMAHA_QUERY_PARAMS_H_
 #define COMPONENTS_OMAHA_QUERY_PARAMS_OMAHA_QUERY_PARAMS_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 
 namespace omaha_query_params {
 
 class OmahaQueryParamsDelegate;
 
 // Generates a string of URL query parameters to be used when getting
 // component and extension updates. These parameters generally remain
 // fixed for a particular build. Embedders can use the delegate to
 // define different implementations. This should be used only in the
 // browser process.
 class OmahaQueryParams {
  public:
   enum ProdId {
     CHROME = 0,
     CRX,
   };
 
   // Generates a string of URL query parameters for Omaha. Includes the
-  // following fields: os, arch, prod, prodchannel, prodversion, lang.
+  // following fields: "os", "arch", "nacl_arch", "prod", "prodchannel",
+  // "prodversion", and "lang"
   static std::string Get(ProdId prod);
 
   // Returns the value we use for the "prod=" parameter. Possible return values
   // include "chrome", "chromecrx", "chromiumcrx", and "unknown".
   static const char* GetProdIdString(ProdId prod);
 
   // Returns the value we use for the "os=" parameter. Possible return values
   // include: "mac", "win", "android", "cros", "linux", and "openbsd".
   static const char* GetOS();
 
@@ skipping 10 matching lines @@
   // Use this delegate.
   static void SetDelegate(OmahaQueryParamsDelegate* delegate);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(OmahaQueryParams);
 };
 
 }  // namespace omaha_query_params
 
 #endif  // COMPONENTS_OMAHA_QUERY_PARAMS_OMAHA_QUERY_PARAMS_H_