Added "os" attribute in the component updater update requests.

chrome/browser/component_updater/component_updater_utils.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/component_updater/component_updater_utils.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/guid.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
@@ skipping 24 matching lines @@
       "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
       "<request protocol=\"3.0\" ");
 
   if (!additional_attributes.empty())
      base::StringAppendF(&request, "%s ", additional_attributes.c_str());
 
   // Chrome version and platform information.
   base::StringAppendF(
       &request,
       "version=\"%s-%s\" prodversion=\"%s\" "
-      "requestid=\"{%s}\" updaterchannel=\"%s\" arch=\"%s\" nacl_arch=\"%s\"",
+      "requestid=\"{%s}\" updaterchannel=\"%s\" "
+      "os=\"%s\" arch=\"%s\" nacl_arch=\"%s\"",
       prod_id.c_str(), chrome_version.c_str(),        // "version"
       chrome_version.c_str(),                         // "prodversion"
       base::GenerateGUID().c_str(),                   // "requestid"
       chrome::OmahaQueryParams::GetChannelString(),   // "updaterchannel"
+      chrome::OmahaQueryParams::getOS(),              // "os"
       chrome::OmahaQueryParams::getArch(),            // "arch"
       chrome::OmahaQueryParams::getNaclArch());       // "nacl_arch"
 #if defined(OS_WIN)
     const bool is_wow64(
         base::win::OSInfo::GetInstance()->wow64_status() ==
         base::win::OSInfo::WOW64_ENABLED);
     if (is_wow64)
       base::StringAppendF(&request, " wow64=\"1\"");
 #endif
     base::StringAppendF(&request, ">");
@@ skipping 103 matching lines @@
 }
 
 std::string GetCrxComponentID(const CrxComponent& component) {
   return component_updater::HexStringToID(
       StringToLowerASCII(base::HexEncode(&component.pk_hash[0],
                          component.pk_hash.size()/2)));
 }
 
 }  // namespace component_updater