Extend VideoCaptureDevice::Client::OnError() to have a tracked_objects::Location param.

media/capture/video/mac/video_capture_device_avfoundation_mac.mm

 // 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.
 
 #import "media/capture/video/mac/video_capture_device_avfoundation_mac.h"
 
 #import <CoreVideo/CoreVideo.h>
 
+#include "base/location.h"
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
 #include "media/base/video_capture_types.h"
 #include "media/capture/video/mac/video_capture_device_mac.h"
 #include "ui/gfx/geometry/size.h"
 
 // Prefer MJPEG if frame width or height is larger than this.
 static const int kMjpegWidthThreshold = 640;
 static const int kMjpegHeightThreshold = 480;
 
@@ skipping 325 matching lines @@
   [self sendErrorString:[NSString
                             stringWithFormat:@"%@: %@",
                                              [error localizedDescription],
                                              [error localizedFailureReason]]];
 }
 
 - (void)sendErrorString:(NSString*)error {
   DLOG(ERROR) << [error UTF8String];
   base::AutoLock lock(lock_);
   if (frameReceiver_)
-    frameReceiver_->ReceiveError([error UTF8String]);
+    frameReceiver_->ReceiveError(FROM_HERE, [error UTF8String]);
 }
 
 @end