Add histogram entry for GpuVideoDecoder errors.

media/filters/gpu_video_decoder.cc

 // Copyright (c) 2012 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 "media/filters/gpu_video_decoder.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 686 matching lines @@
   // occurred.  This guarantees that somebody finds out about the error.  If
   // we don't do this, and if the max decodes are already in flight, then there
   // won't be another decode request to report the error.
   if (!bitstream_buffers_in_decoder_.empty()) {
     auto it = bitstream_buffers_in_decoder_.begin();
     it->second.done_cb.Run(kDecodeError);
     bitstream_buffers_in_decoder_.erase(it);
   }
 
   DLOG(ERROR) << "VDA Error: " << error;
+  UMA_HISTOGRAM_ENUMERATION("Media.GpuVideoDecoderError", error,
+                            media::VideoDecodeAccelerator::ERROR_MAX + 1);
+
   DestroyVDA();
 }
 
 bool GpuVideoDecoder::IsProfileSupported(
     const VideoDecodeAccelerator::Capabilities& capabilities,
     VideoCodecProfile profile,
     const gfx::Size& coded_size,
     bool is_encrypted) {
   DCheckGpuVideoAcceleratorFactoriesTaskRunnerIsCurrent();
   for (const auto& supported_profile : capabilities.supported_profiles) {
     if (profile == supported_profile.profile) {
       if (supported_profile.encrypted_only && !is_encrypted)
         continue;
 
       return IsCodedSizeSupported(coded_size,
                                   supported_profile.min_resolution,
                                   supported_profile.max_resolution);
     }
   }
   return false;
 }
 
 void GpuVideoDecoder::DCheckGpuVideoAcceleratorFactoriesTaskRunnerIsCurrent()
     const {
   DCHECK(factories_->GetTaskRunner()->BelongsToCurrentThread());
 }
 
 }  // namespace media