Because the form factor makes it a bit more annoying to rotate.
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/7ee146401a6467d4aa96ae8f8ae31560eee7aa12 commit 7ee146401a6467d4aa96ae8f8ae31560eee7aa12 Author: mlamouri <mlamouri@chromium.org> Date: Wed Dec 14 14:43:04 2016 Media: do not lock the screen orientation when a video goes fullscreen on a tablet. Ignore the feature being enabled if the Android device form factor is a tablet. BUG= 673862 Review-Url: https://codereview.chromium.org/2573983002 Cr-Commit-Position: refs/heads/master@{#438514} [modify] https://crrev.com/7ee146401a6467d4aa96ae8f8ae31560eee7aa12/chrome/app/generated_resources.grd [modify] https://crrev.com/7ee146401a6467d4aa96ae8f8ae31560eee7aa12/content/browser/renderer_host/render_view_host_impl.cc [modify] https://crrev.com/7ee146401a6467d4aa96ae8f8ae31560eee7aa12/content/public/android/javatests/src/org/chromium/content/browser/VideoFullscreenOrientationLockTest.java
Comment 1 by mlamouri@chromium.org
, Dec 13 2016