Fix PPIXEL_FORMAT_NV21 returned string

media/video/capture/video_capture_types.cc

 // 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.
 
 #include "media/video/capture/video_capture_types.h"
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "media/base/limits.h"
 
@@ skipping 37 matching lines @@
     return "YUY2";
   case PIXEL_FORMAT_UYVY:
     return "UYUY";
   case PIXEL_FORMAT_RGB24:
     return "RGB24";
   case PIXEL_FORMAT_ARGB:
     return "ARGB";
   case PIXEL_FORMAT_MJPEG:
     return "MJPEG";
   case PIXEL_FORMAT_NV21:
-    return "YV12";
+    return "NV21";
   case PIXEL_FORMAT_YV12:
     return "YV12";
   case PIXEL_FORMAT_TEXTURE:
     return "TEXTURE";
   case PIXEL_FORMAT_MAX:
     break;
   }
   NOTREACHED() << "Invalid VideoPixelFormat provided: " << format;
   return "";
 }
 
 VideoCaptureParams::VideoCaptureParams()
     : resolution_change_policy(RESOLUTION_POLICY_FIXED) {}
 
 ImageCaptureFormat::ImageCaptureFormat() : pixel_format(PIXEL_FORMAT_UNKNOWN) {
 }
 
 ImageCaptureFormat::ImageCaptureFormat(const gfx::Size& frame_size,
                                        VideoPixelFormat pixel_format)
     : frame_size(frame_size), pixel_format(pixel_format) {
 }
 
 }  // namespace media