Mac AVfoundation: Change AVVideoScalingModeResizeAspect -> AVVideoScalingModeResizeAspectFill

media/video/capture/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/video/capture/mac/video_capture_device_avfoundation_mac.h"
 
 #import <CoreVideo/CoreVideo.h>
 
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
@@ skipping 189 matching lines @@
     DLOG(ERROR) << "Video capture device does not support current preset";
     return NO;
   }
 
   // Despite all Mac documentation detailing that setting the sessionPreset is
   // enough, that is not the case for, at least, the MacBook Air built-in
   // FaceTime HD Camera, and the capture output has to be configured as well.
   // The reason for this mismatch is probably because most of the AVFoundation
   // docs are written for iOS and not for MacOsX.
   // AVVideoScalingModeKey() refers to letterboxing yes/no and preserve aspect
-  // ratio yes/no when scaling. Currently we set letterbox and preservation.
+  // ratio yes/no when scaling. Currently we set cropping and preservation.
   NSDictionary* videoSettingsDictionary = @{
     (id)kCVPixelBufferWidthKey : @(width),
     (id)kCVPixelBufferHeightKey : @(height),
     (id)kCVPixelBufferPixelFormatTypeKey : @(kCVPixelFormatType_422YpCbCr8),
     AVFoundationGlue::AVVideoScalingModeKey() :
-        AVFoundationGlue::AVVideoScalingModeResizeAspect()
+        AVFoundationGlue::AVVideoScalingModeResizeAspectFill()
   };
   [captureVideoDataOutput_ setVideoSettings:videoSettingsDictionary];
 
   CrAVCaptureConnection* captureConnection = [captureVideoDataOutput_
       connectionWithMediaType:AVFoundationGlue::AVMediaTypeVideo()];
   // Check selector existence, related to bugs http://crbug.com/327532 and
   // http://crbug.com/328096.
   if ([captureConnection
            respondsToSelector:@selector(isVideoMinFrameDurationSupported)] &&
       [captureConnection isVideoMinFrameDurationSupported]) {
@@ skipping 69 matching lines @@
 
 - (void)onVideoError:(NSNotification*)errorNotification {
   NSError* error = base::mac::ObjCCast<NSError>([[errorNotification userInfo]
       objectForKey:AVFoundationGlue::AVCaptureSessionErrorKey()]);
   base::AutoLock lock(lock_);
   if (frameReceiver_)
     frameReceiver_->ReceiveError([[error localizedDescription] UTF8String]);
 }
 
 @end