Cleanup: Prevent usage of various extension headers when extensions support is not compiled in.

Review URL: https://codereview.chromium.org/645043003

Cr-Commit-Position: refs/heads/master@{#300053}
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index 61ced476..3cee584 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -19,7 +19,6 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
-#include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/favicon/chrome_favicon_client_factory.h"
 #include "chrome/browser/favicon/favicon_service.h"
 #include "chrome/browser/favicon/favicon_service_factory.h"
@@ -83,6 +82,7 @@
 #endif  // defined(ENABLE_CONFIGURATION_POLICY)
 
 #if defined(ENABLE_EXTENSIONS)
+#include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_special_storage_policy.h"
 #include "chrome/browser/extensions/extension_system_factory.h"
 #include "chrome/browser/extensions/test_extension_system.h"