Clean up histogram'd media enum max values.

content/renderer/media/rtc_video_encoder.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/rtc_video_encoder.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 637 matching lines @@
       FROM_HERE, base::Bind(&RTCVideoEncoder::Impl::Destroy, impl_));
   impl_ = NULL;
 }
 
 void RTCVideoEncoder::RecordInitEncodeUMA(int32_t init_retval) {
   UMA_HISTOGRAM_BOOLEAN("Media.RTCVideoEncoderInitEncodeSuccess",
                         init_retval == WEBRTC_VIDEO_CODEC_OK);
   if (init_retval == WEBRTC_VIDEO_CODEC_OK) {
     UMA_HISTOGRAM_ENUMERATION("Media.RTCVideoEncoderProfile",
                               video_codec_profile_,
-                              media::VIDEO_CODEC_PROFILE_MAX);
+                              media::VIDEO_CODEC_PROFILE_MAX + 1);
   }
 }
 
 }  // namespace content