Obtain cursor data from CursorShapeClient

The current way of obtaining a cursor's bitmap and hotspot is using
cursor_lookup.h's methods GetCursorBitmap() and GetCursorHotspot().
This is a stateless API that doesn't take into account the current
cursor (size, color, etc.) and doesn't do any caching.

This CL removes cursor_lookup.* and migrates users of that API to
aura::client::CursorShapeClient, a new Aura client which is implemented
by CursorLoader and that can be accessed globally via aura::Env.

Follow-up CLs will refactor the CursorLoader implementation to remove
redundant code enabled by this refactoring and introduce additional
cursor caching.

Bug: 1193775, 1270302
Change-Id: Id15e9b4d75cce43ebd5fe34f0fb37d5e1e811b66
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3310961
Commit-Queue: Henrique Ferreiro <hferreiro@igalia.com>
Reviewed-by: Mark Foltz <mfoltz@chromium.org>
Reviewed-by: Gary Kacmarcik <garykac@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Reviewed-by: David Bertoni <dbertoni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1054973}

• ash/capture_mode/capture_mode_unittests.cc[diff]
• ash/capture_mode/video_recording_watcher.cc[diff]
• ash/wm/native_cursor_manager_ash.cc[diff]
• content/browser/media/capture/mouse_cursor_overlay_controller_aura.cc[diff]
• content/browser/media/capture/mouse_cursor_overlay_controller_browsertest.cc[diff]
• content/shell/browser/shell_platform_data_aura.cc[diff]
• content/shell/browser/shell_platform_data_aura.h[diff]
• content/test/BUILD.gn[diff]
• extensions/shell/browser/shell_desktop_controller_aura.cc[diff]
• remoting/host/chromeos/mouse_cursor_monitor_aura.cc[diff]
• ui/aura/BUILD.gn[diff]
• ui/aura/client/cursor_shape_client.cc[Added - diff]
• ui/aura/client/cursor_shape_client.h[Added - diff]
• ui/aura/env.h[diff]
• ui/aura/test/aura_test_helper.cc[diff]
• ui/aura/test/aura_test_helper.h[diff]
• ui/base/cursor/cursor.cc[diff]
• ui/base/cursor/cursor.h[diff]
• ui/views/widget/desktop_aura/desktop_native_cursor_manager.cc[diff]
• ui/wm/BUILD.gn[diff]
• ui/wm/core/cursor_loader.cc[diff]
• ui/wm/core/cursor_loader.h[diff]
• ui/wm/core/cursor_loader_unittest.cc[diff]
• ui/wm/core/cursor_lookup.cc[Deleted - diff]
• ui/wm/core/cursor_lookup.h[Deleted - diff]