Merge "NuPlayer: Restrict seek on video texture changes" into lmp-dev

                        static_cast<NativeWindowWrapper *>(obj.get())));

            if (obj != NULL) {

                if (mStarted && mVideoDecoder != NULL) {

                    // Issue a seek to refresh the video screen only if started otherwise

                    // the extractor may not yet be started and will assert.

                    // If the video decoder is not set (perhaps audio only in this case)

                    // do not perform a seek as it is not needed.

                    mDeferredActions.push_back(new SeekAction(mCurrentPositionUs));

                }

                // If there is a new surface texture, instantiate decoders

                // again if possible.