Add a URL param to indicate group selection in Instant field trial.

chrome/browser/search_engines/search_provider_install_data.cc

 // Copyright (c) 2011 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/search_provider_install_data.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
@@ skipping 136 matching lines @@
 
 // Indicates if the two inputs have the same security origin.
 // |requested_origin| should only be a security origin (no path, etc.).
 // It is ok if |template_url| is NULL.
 static bool IsSameOrigin(const GURL& requested_origin,
                          const TemplateURL* template_url,
                          const SearchTermsData& search_terms_data) {
   DCHECK(requested_origin == requested_origin.GetOrigin());
   return template_url && requested_origin ==
       TemplateURLService::GenerateSearchURLUsingTermsData(
+          NULL,
           template_url,
           search_terms_data).GetOrigin();
 }
 
 }  // namespace
 
 SearchProviderInstallData::SearchProviderInstallData(
     WebDataService* web_service,
     int ui_death_notification,
     const NotificationSource& ui_death_source)
@@ skipping 103 matching lines @@
 void SearchProviderInstallData::SetDefault(const TemplateURL* template_url) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   if (!template_url) {
     default_search_origin_.clear();
     return;
   }
 
   IOThreadSearchTermsData search_terms_data(google_base_url_);
   const GURL url(TemplateURLService::GenerateSearchURLUsingTermsData(
-      template_url, search_terms_data));
+      NULL, template_url, search_terms_data));
   if (!url.is_valid() || !url.has_host()) {
     default_search_origin_.clear();
     return;
   }
   default_search_origin_ = url.GetOrigin().spec();
 }
 
 void SearchProviderInstallData::OnLoadFailed() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   provider_map_.reset(new SearchHostToURLsMap());
   IOThreadSearchTermsData search_terms_data(google_base_url_);
   provider_map_->Init(template_urls_.get(), search_terms_data);
   SetDefault(NULL);
   NotifyLoaded();
 }
 
 void SearchProviderInstallData::NotifyLoaded() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   task_queue_.Run();
 
   // Since we expect this request to be rare, clear out the information. This
   // also keeps the responses current as the search providers change.
   provider_map_.reset();
   SetDefault(NULL);
 }