Fix compile error introduced with r6571.

TBR=mflodman@webrtc.org

BUG=3527

Review URL: https://webrtc-codereview.appspot.com/20799004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6572 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc b/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc
index e825b51..08422d2 100644
--- a/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc
+++ b/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc
@@ -201,7 +201,7 @@
     observer_->OnReceiveBitrateChanged(ssrcs, target_bitrate);
   }
   for (it = overuse_detectors_.begin(); it != overuse_detectors_.end(); ++it) {
-    GetDetector(it).SetRateControlRegion(region);
+    GetDetector(it)->SetRateControlRegion(region);
   }
 }