rlz: Hook up on mac, switch to chrome's network stack on win.

chrome/browser/search_engines/template_url_service.cc

 // Copyright (c) 2012 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/search_engines/template_url_service.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/i18n/case_conversion.h"
@@ skipping 1570 matching lines @@
     TemplateURL* modifiable_url = const_cast<TemplateURL*>(url);
     // Don't mark the url as edited, otherwise we won't be able to rev the
     // template urls we ship with.
     modifiable_url->set_show_in_default_list(true);
     if (service_.get())
       service_.get()->UpdateKeyword(*url);
 
     const TemplateURLRef* url_ref = url->url();
     if (url_ref && url_ref->HasGoogleBaseURLs()) {
       GoogleURLTracker::RequestServerCheck();
-#if defined(OS_WIN) && defined(GOOGLE_CHROME_BUILD)
+#if (defined(OS_WIN) || defined(OS_MACOSX)) && defined(GOOGLE_CHROME_BUILD)
       // Needs to be evaluated. See http://crbug.com/62328.
       base::ThreadRestrictions::ScopedAllowIO allow_io;
       RLZTracker::RecordProductEvent(rlz_lib::CHROME,
                                      rlz_lib::CHROME_OMNIBOX,
                                      rlz_lib::SET_TO_GOOGLE);
 #endif
     }
   }
 
   if (!is_default_search_managed_) {
@@ skipping 306 matching lines @@
   dst->set_input_encodings(input_encodings);
   dst->set_show_in_default_list(specifics.show_in_default_list());
   dst->SetSuggestionsURL(specifics.suggestions_url(), 0, 0);
   dst->SetPrepopulateId(specifics.prepopulate_id());
   dst->set_autogenerate_keyword(specifics.autogenerate_keyword());
   dst->SetInstantURL(specifics.instant_url(), 0, 0);
   dst->set_last_modified(
       base::Time::FromInternalValue(specifics.last_modified()));
   dst->set_sync_guid(specifics.sync_guid());
 }