ifdef various extensions code to be used only when extensions are enabled.

BUG=349436

Review URL: https://codereview.chromium.org/383903003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282806 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/autocomplete/autocomplete_classifier_factory.cc b/chrome/browser/autocomplete/autocomplete_classifier_factory.cc
index aae29a7..4fb0336 100644
--- a/chrome/browser/autocomplete/autocomplete_classifier_factory.cc
+++ b/chrome/browser/autocomplete/autocomplete_classifier_factory.cc
@@ -12,8 +12,11 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
+
+#if defined(ENABLE_EXTENSIONS)
 #include "extensions/browser/extension_system_provider.h"
 #include "extensions/browser/extensions_browser_client.h"
+#endif
 
 // static
 AutocompleteClassifier* AutocompleteClassifierFactory::GetForProfile(
@@ -43,8 +46,10 @@
     : BrowserContextKeyedServiceFactory(
         "AutocompleteClassifier",
         BrowserContextDependencyManager::GetInstance()) {
+#if defined(ENABLE_EXTENSIONS)
   DependsOn(
       extensions::ExtensionsBrowserClient::Get()->GetExtensionSystemFactory());
+#endif
   DependsOn(TemplateURLServiceFactory::GetInstance());
   // TODO(pkasting): Uncomment these once they exist.
   //   DependsOn(PrefServiceFactory::GetInstance());