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 171 matching lines @@
 
   // Remove leading "www.".
   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) {
+GURL TemplateURLService::GenerateSearchURL(Profile* profile,
+                                           const TemplateURL* t_url) {
   DCHECK(t_url);
   UIThreadSearchTermsData search_terms_data;
-  return GenerateSearchURLUsingTermsData(t_url, search_terms_data);
+  return GenerateSearchURLUsingTermsData(profile, t_url, search_terms_data);
 }
 
 // static
 GURL TemplateURLService::GenerateSearchURLUsingTermsData(
+    Profile* profile,
     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.
   if (!search_ref || !search_ref->IsValidUsingTermsData(search_terms_data) ||
       t_url->IsExtensionKeyword())
     return GURL();
 
   if (!search_ref->SupportsReplacementUsingTermsData(search_terms_data))
     return GURL(search_ref->url());
 
   return GURL(search_ref->ReplaceSearchTermsUsingTermsData(
-      *t_url, ASCIIToUTF16(kReplacementTerm),
+      profile, *t_url, ASCIIToUTF16(kReplacementTerm),
       TemplateURLRef::NO_SUGGESTIONS_AVAILABLE,
       string16(), search_terms_data));
 }
 
 bool TemplateURLService::CanReplaceKeyword(
     const string16& keyword,
     const GURL& url,
     const TemplateURL** template_url_to_replace) {
   DCHECK(!keyword.empty());  // This should only be called for non-empty
                              // keywords. If we need to support empty kewords
@@ skipping 1099 matching lines @@
 
       i = template_urls->erase(i);
       if (service_.get())
         service_->RemoveKeyword(*template_url);
       delete template_url;
     } else {
       ++i;
     }
   }
 }