ifdef extensions code in BrowserProcess, IOThread, and ChromeNetworkDelegate.

chrome/browser/browser_process_impl.h

Index: chrome/browser/browser_process_impl.h
diff --git a/chrome/browser/browser_process_impl.h b/chrome/browser/browser_process_impl.h
index 7f5de8fdc6077c688ae21e3ca729614a42c6dad4..3e5c49631a2f8f1e22461cc4a55263851967a754 100644
--- a/chrome/browser/browser_process_impl.h
+++ b/chrome/browser/browser_process_impl.h
@@ -195,21 +195,24 @@ class BrowserProcessImpl : public BrowserProcess,
   scoped_ptr<GpuModeManager> gpu_mode_manager_;
 
   scoped_ptr<extensions::ExtensionsBrowserClient> extensions_browser_client_;
+
+#if defined(ENABLE_EXTENSIONS)
   scoped_refptr<extensions::EventRouterForwarder>
       extension_event_router_forwarder_;
 
-#if !defined(OS_ANDROID)
-  scoped_ptr<RemoteDebuggingServer> remote_debugging_server_;
+  scoped_ptr<MediaFileSystemRegistry> media_file_system_registry_;
 #endif
 
-#if !defined(OS_ANDROID) && !defined(OS_IOS)
-  scoped_ptr<MediaFileSystemRegistry> media_file_system_registry_;
+#if !defined(OS_ANDROID)
+  scoped_ptr<RemoteDebuggingServer> remote_debugging_server_;
 #endif
 
+#if defined(ENABLE_FULL_PRINTING)
   scoped_refptr<printing::PrintPreviewDialogController>
       print_preview_dialog_controller_;
 
   scoped_ptr<printing::BackgroundPrintingManager> background_printing_manager_;
+#endif
 
   // Manager for desktop notification UI.
   bool created_notification_ui_manager_;