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

chrome/browser/search_engines/template_url_service.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/template_url_service.h"
 
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/i18n/case_conversion.h"
 #include "base/stl_util.h"
@@ skipping 173 matching lines @@
   result = net::StripWWW(result);
 
   // Remove trailing "/".
   return (result.length() > 0 && result[result.length() - 1] == '/') ?
       result.substr(0, result.length() - 1) : result;
 }
 
 // static
 GURL TemplateURLService::GenerateSearchURL(const TemplateURL* t_url) {
   DCHECK(t_url);
-  UIThreadSearchTermsData search_terms_data;
+  UIThreadSearchTermsData search_terms_data(NULL);
   return GenerateSearchURLUsingTermsData(t_url, search_terms_data);
 }
 
 // static
 GURL TemplateURLService::GenerateSearchURLUsingTermsData(
     const TemplateURL* t_url,
     const SearchTermsData& search_terms_data) {
   DCHECK(t_url);
   const TemplateURLRef* search_ref = t_url->url();
   // Extension keywords don't have host-based search URLs.
@@ skipping 523 matching lines @@
       // entry, stop.
       break;
     }
   }
 }
 
 void TemplateURLService::AddToMaps(const TemplateURL* template_url) {
   if (!template_url->keyword().empty())
     keyword_to_template_map_[template_url->keyword()] = template_url;
   if (loaded_) {
-    UIThreadSearchTermsData search_terms_data;
+    UIThreadSearchTermsData search_terms_data(NULL);
     provider_map_.Add(template_url, search_terms_data);
   }
 }
 
 void TemplateURLService::SetTemplateURLs(
     const std::vector<TemplateURL*>& urls) {
   // Add mappings for the new items.
 
   // First, add the items that already have id's, so that the next_id_
   // gets properly set.
@@ skipping 13 matching lines @@
        ++i) {
     if ((*i)->id() != 0)
       continue;
     AddNoNotify(*i);
   }
 }
 
 void TemplateURLService::ChangeToLoadedState() {
   DCHECK(!loaded_);
 
-  UIThreadSearchTermsData search_terms_data;
+  UIThreadSearchTermsData search_terms_data(NULL);
   provider_map_.Init(template_urls_, search_terms_data);
   loaded_ = true;
 }
 
 void TemplateURLService::NotifyLoaded() {
   NotificationService::current()->Notify(
       chrome::NOTIFICATION_TEMPLATE_URL_SERVICE_LOADED,
       Source<TemplateURLService>(this),
       NotificationService::NoDetails());
 
@@ skipping 145 matching lines @@
                                         const TemplateURL& new_values) {
   DCHECK(loaded_);
   DCHECK(existing_turl);
   DCHECK(find(template_urls_.begin(), template_urls_.end(), existing_turl) !=
          template_urls_.end());
 
   if (!existing_turl->keyword().empty())
     keyword_to_template_map_.erase(existing_turl->keyword());
 
   // This call handles copying over the values (while retaining the id).
-  UIThreadSearchTermsData search_terms_data;
+  UIThreadSearchTermsData search_terms_data(NULL);
   provider_map_.Update(existing_turl, new_values, search_terms_data);
 
   if (!existing_turl->keyword().empty())
     keyword_to_template_map_[existing_turl->keyword()] = existing_turl;
 
   if (service_.get())
     service_->UpdateKeyword(*existing_turl);
 
   if (default_search_provider_ == existing_turl)
     SetDefaultSearchProviderNoNotify(existing_turl);
@@ skipping 132 matching lines @@
          t_url->suggestions_url()->HasGoogleBaseURLs())) {
       RemoveFromKeywordMapByPointer(t_url);
       t_url->InvalidateCachedValues();
       if (!t_url->keyword().empty())
         keyword_to_template_map_[t_url->keyword()] = t_url;
       something_changed = true;
     }
   }
 
   if (something_changed && loaded_) {
-    UIThreadSearchTermsData search_terms_data;
+    UIThreadSearchTermsData search_terms_data(NULL);
     provider_map_.UpdateGoogleBaseURLs(search_terms_data);
     NotifyObservers();
   }
 }
 
 void TemplateURLService::UpdateDefaultSearch() {
   if (!loaded_) {
     // Set |initial_default_search_provider_| from the preferences.  We use this
     // value for default search provider until the database has been loaded.
     if (!LoadDefaultSearchProviderFromPrefs(&initial_default_search_provider_,
@@ skipping 221 matching lines @@
 
       i = template_urls->erase(i);
       if (service_.get())
         service_->RemoveKeyword(*template_url);
       delete template_url;
     } else {
       ++i;
     }
   }
 }