Verify returned frames from media::VideoFrame::Wrap*() methods

media/filters/vpx_video_decoder.cc

Index: media/filters/vpx_video_decoder.cc
diff --git a/media/filters/vpx_video_decoder.cc b/media/filters/vpx_video_decoder.cc
index d9721b0c9474e6aa83867d395d8dbad900473aaf..c853d01161cd37195f070bb75f8399357858dbc3 100644
--- a/media/filters/vpx_video_decoder.cc
+++ b/media/filters/vpx_video_decoder.cc
@@ -576,8 +576,9 @@ void VpxVideoDecoder::CopyVpxImageToVideoFrame(
         vpx_image->planes[VPX_PLANE_U],
         vpx_image->planes[VPX_PLANE_V],
         kNoTimestamp());
-    video_frame->get()->AddDestructionObserver(
-        memory_pool_->CreateFrameCallback(vpx_image->fb_priv));
+    if (video_frame->get())
+      video_frame->get()->AddDestructionObserver(
+          memory_pool_->CreateFrameCallback(vpx_image->fb_priv));
 
     UMA_HISTOGRAM_COUNTS("Media.Vpx.VideoDecoderBuffersInUseByDecoder",
                          memory_pool_->NumberOfFrameBuffersInUseByDecoder());
@@ -594,18 +595,19 @@ void VpxVideoDecoder::CopyVpxImageToVideoFrame(
   *video_frame = frame_pool_.CreateFrame(
       codec_format, visible_size, gfx::Rect(visible_size),
       config_.natural_size(), kNoTimestamp());
-
-  libyuv::I420Copy(
-      vpx_image->planes[VPX_PLANE_Y], vpx_image->stride[VPX_PLANE_Y],
-      vpx_image->planes[VPX_PLANE_U], vpx_image->stride[VPX_PLANE_U],
-      vpx_image->planes[VPX_PLANE_V], vpx_image->stride[VPX_PLANE_V],
-      (*video_frame)->visible_data(VideoFrame::kYPlane),
-      (*video_frame)->stride(VideoFrame::kYPlane),
-      (*video_frame)->visible_data(VideoFrame::kUPlane),
-      (*video_frame)->stride(VideoFrame::kUPlane),
-      (*video_frame)->visible_data(VideoFrame::kVPlane),
-      (*video_frame)->stride(VideoFrame::kVPlane), coded_size.width(),
-      coded_size.height());
+  if (*video_frame) {
+    libyuv::I420Copy(
+        vpx_image->planes[VPX_PLANE_Y], vpx_image->stride[VPX_PLANE_Y],
+        vpx_image->planes[VPX_PLANE_U], vpx_image->stride[VPX_PLANE_U],
+        vpx_image->planes[VPX_PLANE_V], vpx_image->stride[VPX_PLANE_V],
+        (*video_frame)->visible_data(VideoFrame::kYPlane),
+        (*video_frame)->stride(VideoFrame::kYPlane),
+        (*video_frame)->visible_data(VideoFrame::kUPlane),
+        (*video_frame)->stride(VideoFrame::kUPlane),
+        (*video_frame)->visible_data(VideoFrame::kVPlane),
+        (*video_frame)->stride(VideoFrame::kVPlane), coded_size.width(),
+        coded_size.height());
+  }
 }
 
 }  // namespace media