Cleanup: Remove some deprecated ExtensionService usage.

chrome/browser/autocomplete/keyword_extensions_delegate_impl.cc

Index: chrome/browser/autocomplete/keyword_extensions_delegate_impl.cc
diff --git a/chrome/browser/autocomplete/keyword_extensions_delegate_impl.cc b/chrome/browser/autocomplete/keyword_extensions_delegate_impl.cc
index bc647ea01eda6f542bf68420b0849d0a54c63adb..2b7551b70f5729f887efd96c5f1b63554af75812 100644
--- a/chrome/browser/autocomplete/keyword_extensions_delegate_impl.cc
+++ b/chrome/browser/autocomplete/keyword_extensions_delegate_impl.cc
@@ -6,12 +6,11 @@
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/api/omnibox/omnibox_api.h"
-#include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
-#include "extensions/browser/extension_system.h"
+#include "extensions/browser/extension_registry.h"
 #include "extensions/browser/notification_types.h"
 
 namespace omnibox_api = extensions::api::omnibox;
@@ -51,10 +50,9 @@ void  KeywordExtensionsDelegateImpl::IncrementInputId() {
 
 bool KeywordExtensionsDelegateImpl::IsEnabledExtension(
     const std::string& extension_id) {
-  ExtensionService* extension_service =
-      extensions::ExtensionSystem::Get(profile_)->extension_service();
   const extensions::Extension* extension =
-      extension_service->GetExtensionById(extension_id, false);
+      extensions::ExtensionRegistry::Get(
+          profile_)->enabled_extensions().GetByID(extension_id);
   return extension &&
       (!profile_->IsOffTheRecord() ||
        !extensions::util::IsIncognitoEnabled(extension_id, profile_));