Convert MediaLog from being ref counted to owned by WebMediaPlayer.

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 <array>
 #include <utility>
 
@@ skipping 95 matching lines @@
                                         const gfx::Size& ns)
     : bitstream_buffer_id(bbid),
       timestamp(ts),
       visible_rect(vr),
       natural_size(ns) {}
 
 GpuVideoDecoder::BufferData::~BufferData() {}
 
 GpuVideoDecoder::GpuVideoDecoder(GpuVideoAcceleratorFactories* factories,
                                  const RequestSurfaceCB& request_surface_cb,
-                                 scoped_refptr<MediaLog> media_log)
+                                 MediaLog* media_log)
     : needs_bitstream_conversion_(false),
       factories_(factories),
       request_surface_cb_(request_surface_cb),
       media_log_(media_log),
       vda_initialized_(false),
       state_(kNormal),
       decoder_texture_target_(0),
       pixel_format_(PIXEL_FORMAT_UNKNOWN),
       next_picture_buffer_id_(0),
       next_bitstream_buffer_id_(0),
@@ skipping 35 matching lines @@
       coded_size.height() <= max_resolution.height() &&
       coded_size.width() >= min_resolution.width() &&
       coded_size.height() >= min_resolution.height());
 }
 
 // Report |success| to UMA and run |cb| with it.  This is super-specific to the
 // UMA stat reported because the UMA_HISTOGRAM_ENUMERATION API requires a
 // callsite to always be called with the same stat name (can't parameterize it).
 static void ReportGpuVideoDecoderInitializeStatusToUMAAndRunCB(
     const VideoDecoder::InitCB& cb,
-    scoped_refptr<MediaLog> media_log,
+    MediaLog* media_log,
     bool success) {
   // TODO(xhwang): Report |success| directly.
   PipelineStatus status = success ? PIPELINE_OK : DECODER_ERROR_NOT_SUPPORTED;
   UMA_HISTOGRAM_ENUMERATION(
       "Media.GpuVideoDecoderInitializeStatus", status, PIPELINE_STATUS_MAX + 1);
 
   if (!success) {
     media_log->RecordRapporWithSecurityOrigin(
         "Media.OriginUrl.GpuVideoDecoderInitFailure");
   }
@@ skipping 710 matching lines @@
   }
   return false;
 }
 
 void GpuVideoDecoder::DCheckGpuVideoAcceleratorFactoriesTaskRunnerIsCurrent()
     const {
   DCHECK(factories_->GetTaskRunner()->BelongsToCurrentThread());
 }
 
 }  // namespace media