X11 returns the image data in a |long|, and CL [1] broke the captured on 32-bit builds. [1] - https://webrtc-review.googlesource.com/c/src/+/110461 Bug: chromium:954762 Change-Id: I2620e977ed0dd7ae355b9acd938cfcbeaaa9bfb3 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/134541 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Wez <wez@google.com> Reviewed-by: Sergey Ulanov <sergeyu@chromium.org> Cr-Commit-Position: refs/heads/master@{#27807}