Add support for converting I420 software frames into NV12 hardware frames

media/base/video_frame.cc

Index: media/base/video_frame.cc
diff --git a/media/base/video_frame.cc b/media/base/video_frame.cc
index 662d6aa1c59edc31bdc55eca32df81001d43ec85..ec70f36534199b622f40df961e5c308653033116 100644
--- a/media/base/video_frame.cc
+++ b/media/base/video_frame.cc
@@ -223,7 +223,9 @@ scoped_refptr<VideoFrame> VideoFrame::WrapNativeTexture(
     const gfx::Rect& visible_rect,
     const gfx::Size& natural_size,
     base::TimeDelta timestamp) {
-  if (format != PIXEL_FORMAT_ARGB && format != PIXEL_FORMAT_UYVY) {
+  if (format != PIXEL_FORMAT_ARGB &&
+      format != PIXEL_FORMAT_UYVY &&
+      format != PIXEL_FORMAT_NV12) {
     DLOG(ERROR) << "Unsupported pixel format supported, got "
                 << VideoPixelFormatToString(format);
     return nullptr;