media: Move all android files in media/gpu to an android/ subdirectory

Done with:

git mv android_* fake_android_* avda_* content_video_view_overlay* \
    surface_texture_gl_owner* mock_surface_texture_gl_owner* android
tools/git/mass-rename.py
git cl format

Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: I7141403afac69572db71fa80dbad79dfcd960a32
Reviewed-on: https://chromium-review.googlesource.com/656878
Commit-Queue: Chris Watkins <[email protected]>
Reviewed-by: Frank Liberato <[email protected]>
Reviewed-by: Sunny Sachanandani <[email protected]>
Cr-Commit-Position: refs/heads/master@{#501865}
48 files changed