Minimal if-def changes for OS_IOS in browser_main_loop.*

content/browser/browser_main_loop.h

Index: content/browser/browser_main_loop.h
diff --git a/content/browser/browser_main_loop.h b/content/browser/browser_main_loop.h
index eb3de50d1b066c22d45939e67dd6a2a03df315f3..6f5abe5c67cfee323979558644430b08e22871e3 100644
--- a/content/browser/browser_main_loop.h
+++ b/content/browser/browser_main_loop.h
@@ -113,7 +113,7 @@ class BrowserMainLoop {
   scoped_ptr<SystemMessageWindowWin> system_message_window_;
 #elif defined(OS_LINUX)
   scoped_ptr<DeviceMonitorLinux> device_monitor_linux_;
-#elif defined(OS_MACOSX)
+#elif defined(OS_MACOSX) && !defined(OS_IOS)
   scoped_ptr<DeviceMonitorMac> device_monitor_mac_;
 #endif
 
@@ -131,7 +131,9 @@ class BrowserMainLoop {
 
   // Members initialized in |RunMainMessageLoopParts()| ------------------------
   scoped_ptr<BrowserProcessSubThread> db_thread_;
+#if !defined(OS_IOS)
   scoped_ptr<WebKitThread> webkit_thread_;
+#endif
   scoped_ptr<BrowserProcessSubThread> file_user_blocking_thread_;
   scoped_ptr<BrowserProcessSubThread> file_thread_;
   scoped_ptr<BrowserProcessSubThread> process_launcher_thread_;