Log error messages in windows video capture

media/video/capture/mac/video_capture_device_mac.mm

 // 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/video/capture/mac/video_capture_device_mac.h"
 
 #include <IOKit/IOCFPlugIn.h>
 #include <IOKit/usb/IOUSBLib.h>
 #include <IOKit/usb/USBSpec.h>
 
@@ skipping 541 matching lines @@
 
 void VideoCaptureDeviceMac::ReceiveError(const std::string& reason) {
   task_runner_->PostTask(FROM_HERE,
                          base::Bind(&VideoCaptureDeviceMac::SetErrorState,
                                     weak_factory_.GetWeakPtr(),
                                     reason));
 }
 
 void VideoCaptureDeviceMac::SetErrorState(const std::string& reason) {
   DCHECK(task_runner_->BelongsToCurrentThread());
-  DLOG(ERROR) << reason;
   state_ = kError;
   client_->OnError(reason);
 }
 
 void VideoCaptureDeviceMac::LogMessage(const std::string& message) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   if (client_)
     client_->OnLog(message);
 }
 
 bool VideoCaptureDeviceMac::UpdateCaptureResolution() {
   if (![capture_device_ setCaptureHeight:capture_format_.frame_size.height()
                                    width:capture_format_.frame_size.width()
                                frameRate:capture_format_.frame_rate]) {
     ReceiveError("Could not configure capture device.");
     return false;
   }
   return true;
 }
 
 } // namespace media