I was wondering if WebGL is considered stable enough to be enabled by default. It makes some PDFs render much faster and it has been off by default for a while now, so we have had quite some time to test it.

If we decide to enable WebGL by default, we should not forget to update https://github.com/mozilla/pdf.js/blob/master/extensions/chromium/preferences_schema.json#L39 as well.

/cc @yurydelendik 
/cc @Snuffleupagus (because IIRC you were testing WebGL too)

this._abortOperatorList({ intentState, reason, force: true });
          intentState.streamReaderCancelTimeout = null;
        }, RENDERING_CANCELLED_TIMEOUT);
        return;
      }
    }
    intentState.streamReader.cancel(new AbortException(reason?.message));
    intentState.streamReader = null;
    if (this._transport.destroyed) {
      return; 
    }
    
    
    for (const [intent, curIntentState] of this._intentStates) {
      if (curIntentState === intentState) {
        this._intentStates.delete(intent);
        break;
      }
    }
    
    this.cleanup();
  }
  /**
   * @type {Object} Returns page stats, if enabled; returns `null` otherwise.
   */
  get stats() {
    return this._stats;
  }
}
class LoopbackPort {