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

media/video/gpu_memory_buffer_video_frame_pool.cc

 // Copyright 2015 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/gpu_memory_buffer_video_frame_pool.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 #include <stddef.h>
 #include <stdint.h>
@@ skipping 565 matching lines @@
   // Create the VideoFrame backed by native textures.
   gfx::Size visible_size = video_frame->visible_rect().size();
   switch (output_format_) {
     case PIXEL_FORMAT_I420:
       frame = VideoFrame::WrapYUV420NativeTextures(
           mailbox_holders[VideoFrame::kYPlane],
           mailbox_holders[VideoFrame::kUPlane],
           mailbox_holders[VideoFrame::kVPlane], release_mailbox_callback,
           coded_size, gfx::Rect(visible_size), video_frame->natural_size(),
           video_frame->timestamp());
-      if (video_frame->metadata()->IsTrue(VideoFrameMetadata::ALLOW_OVERLAY))
+      if (frame &&
+          video_frame->metadata()->IsTrue(VideoFrameMetadata::ALLOW_OVERLAY))
         frame->metadata()->SetBoolean(VideoFrameMetadata::ALLOW_OVERLAY, true);
       break;
     case PIXEL_FORMAT_NV12:
     case PIXEL_FORMAT_UYVY:
       frame = VideoFrame::WrapNativeTexture(
           output_format_, mailbox_holders[VideoFrame::kYPlane],
           release_mailbox_callback, coded_size, gfx::Rect(visible_size),
           video_frame->natural_size(), video_frame->timestamp());
-      frame->metadata()->SetBoolean(VideoFrameMetadata::ALLOW_OVERLAY, true);
+      if (frame)
+        frame->metadata()->SetBoolean(VideoFrameMetadata::ALLOW_OVERLAY, true);
       break;
     default:
       NOTREACHED();
   }
 
+  if (!frame) {
+    release_mailbox_callback.Run(gpu::SyncToken());
+    frame_ready_cb.Run(video_frame);
+    return;
+  }
+
   base::TimeTicks render_time;
   if (video_frame->metadata()->GetTimeTicks(VideoFrameMetadata::REFERENCE_TIME,
                                             &render_time)) {
     frame->metadata()->SetTimeTicks(VideoFrameMetadata::REFERENCE_TIME,
                                     render_time);
   }
 
   frame_ready_cb.Run(frame);
 }
 
@@ skipping 130 matching lines @@
 }
 
 void GpuMemoryBufferVideoFramePool::MaybeCreateHardwareFrame(
     const scoped_refptr<VideoFrame>& video_frame,
     const FrameReadyCB& frame_ready_cb) {
   DCHECK(video_frame);
   pool_impl_->CreateHardwareFrame(video_frame, frame_ready_cb);
 }
 
 }  // namespace media