[AiS] Enable AiS flag on all platforms

chrome/browser/autocomplete/search_provider.cc

Index: chrome/browser/autocomplete/search_provider.cc
diff --git a/chrome/browser/autocomplete/search_provider.cc b/chrome/browser/autocomplete/search_provider.cc
index d6979a84f22ccc118ebf23cbd2104ee1af271486..528cde1dd2d0c16983e81b7b82cd7bba4f4a6b32 100644
--- a/chrome/browser/autocomplete/search_provider.cc
+++ b/chrome/browser/autocomplete/search_provider.cc
@@ -9,7 +9,6 @@
 
 #include "base/base64.h"
 #include "base/callback.h"
-#include "base/command_line.h"
 #include "base/i18n/break_iterator.h"
 #include "base/i18n/case_conversion.h"
 #include "base/json/json_string_value_serializer.h"
@@ -37,7 +36,6 @@
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/search/instant_controller.h"
-#include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/user_metrics.h"
@@ -641,11 +639,8 @@ net::URLFetcher* SearchProvider::CreateSuggestFetcher(
   TemplateURLRef::SearchTermsArgs search_term_args(input.text());
   search_term_args.cursor_position = input.cursor_position();
   search_term_args.page_classification = input.current_page_classification();
-#if defined(OS_ANDROID)
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kEnableAnswersInSuggest))
+  if (chrome::IsAnswersInSuggestEnabled())
     search_term_args.session_token = GetSessionToken();
-#endif
   GURL suggest_url(template_url->suggestions_url_ref().ReplaceSearchTerms(
       search_term_args));
   if (!suggest_url.is_valid())