mac: Remove ScopedCFTypeRef from base::mac::.

base/message_loop/message_pump_io_ios.cc

Index: base/message_loop/message_pump_io_ios.cc
diff --git a/base/message_loop/message_pump_io_ios.cc b/base/message_loop/message_pump_io_ios.cc
index 7b1e0f47edd3a8a8dc09c21987936545b66449a0..0dd6930fe705d1c67b4992528eed2c96ddd3d383 100644
--- a/base/message_loop/message_pump_io_ios.cc
+++ b/base/message_loop/message_pump_io_ios.cc
@@ -179,7 +179,7 @@ void MessagePumpIOSForIO::HandleFdIOEvent(CFFileDescriptorRef fdref,
   // Ensure that |fdref| will remain live for the duration of this function
   // call even if |controller| is deleted or |StopWatchingFileDescriptor()| is
   // called, either of which will cause |fdref| to be released.
-  mac::ScopedCFTypeRef<CFFileDescriptorRef> scoped_fdref(
+  ScopedCFTypeRef<CFFileDescriptorRef> scoped_fdref(
       fdref, base::scoped_policy::RETAIN);
 
   int fd = CFFileDescriptorGetNativeDescriptor(fdref);