Enable SurfaceView fullscreen video on Android with WebMediaPlayerImpl

content/common/gpu/media/android_video_decode_accelerator.cc

 // Copyright (c) 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 "content/common/gpu/media/android_video_decode_accelerator.h"
 
 #include <stddef.h>
 
 #include "base/android/build_info.h"
 #include "base/auto_reset.h"
@@ skipping 996 matching lines @@
     profile.min_resolution.SetSize(0, 0);
     // Advertise support for 4k and let the MediaCodec fail when decoding if it
     // doesn't support the resolution. It's assumed that consumers won't have
     // software fallback for H264 on Android anyway.
     profile.max_resolution.SetSize(3840, 2160);
     profiles.push_back(profile);
   }
 
   if (UseDeferredRenderingStrategy()) {
     capabilities.flags = media::VideoDecodeAccelerator::Capabilities::
-        NEEDS_ALL_PICTURE_BUFFERS_TO_DECODE;
+                             NEEDS_ALL_PICTURE_BUFFERS_TO_DECODE |
+                         media::VideoDecodeAccelerator::Capabilities::
+                             SUPPORTS_EXTERNAL_OUTPUT_SURFACE;
   }
 
   return capabilities;
 }
 
 }  // namespace content